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2. Introgression of leaf rust and stripe rust resistance from Sharon goatgrass (Aegilops sharonensis eig) into bread wheat (Triticum aestivum L.)

Author

Millet, E., Manisterski, J., Ben-Yehuda, P., Distelfeld, A., Deek, J., Wan, A., Chen, X., and Steffenson, B.J.

Subjects
Wheat -- Diseases -- Genetic aspects, Biological diversity -- Analysis, Rust fungi -- Analysis, Biological sciences
Abstract

Leaf rust and stripe rust are devastating wheat diseases, causing significant yield losses in many regions of the world. The use of resistant varieties is the most efficient way to protect wheat crops from these diseases. Sharon goatgrass (Aegilops sharonensis or AES), which is a diploid wild relative of wheat, exhibits a high frequency of leaf and stripe rust resistance. We used the resistant AES accession TH548 and induced homoeologous recombination by the ph1b allele to obtain resistant wheat recombinant lines carrying AES chromosome segments in the genetic background of the spring wheat cultivar Galil. The gametocidal effect from AES was overcome by using an 'anti-gametocidal' wheat mutant. These recombinant lines were found resistant to highly virulent races of the leaf and stripe rust pathogens in Israel and the United States. Molecular DArT analysis of the different recombinant lines revealed different lengths of AES segments on wheat chromosome 6B, which indicates the location of both resistance genes. Key words: Aegilops sharonensis, wheat, recombinant lines, leaf rust resistance, stripe rust resistance, DArT mapping. Les rouilles brunes et jaunes sont des maladies devastatrices chez le ble puisqu'elles causent d'importantes pertes de rendement dans plusieurs regions du monde. L'emploi de varietes resistantes est le moyen le plus efficient de proteger le ble de ces maladies. L'egilope de Sharon (Aegilops sharonensis ou AES), une espece diploide sauvage apparentee au ble, presente une haute frequence de resistance aux rouilles brunes et jaunes. Les auteurs ont employe une accession resistante de l'AES, TH548, et induit de la recombinaison homeologue a l'aide de l'allele ph1b pour obtenir des lignees recombinantes de ble dotees de resistance grace a des segments chromosomiques de l'AES introduits dans le fond genetique du cultivar de ble de printemps Galil. L'effet gametocide de l'AES a ete surmonte en employant un ble mutant << anti-gametocide >>. Ces lignees recombinantes etaient resistantes a des races tres virulentes des rouilles brunes et jaunes en Israel et aux Etats-Unis. Des analyses DArT realisees sur les differentes lignees recombinantes ont revele que les segments chromosomiques de l'AES introduits sur le chromosome 6B du ble etaient de differentes longueurs, ce qui a permis de deduire l'emplacement des deux genes de resistance. [Traduit par la Redaction] Mots-cles: Aegilops sharonensis, ble, lignees recombinantes, resistance a la rouille brune, resistance a la rouille jaune, cartographie a l'aide de marqueurs DArT., Introduction Leaf rust, caused by Puccinia triticina Erikss., and stripe (yellow) rust, caused by Puccinia striiformis Westend. f. sp. tritici Erikss., are major wheat diseases. Leaf rust can cause yield [...]

Published
2014
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3. Abstracts of papers presented at the 15th conference of the weed science society of Israel

Author

Eizenberg, H., Tanaami, Z., Jacobsohn, R., Lalazar, A., Hayut, M., Sibony, M., Tal, A., Rubin, B., Sibony, M., Yossef, T., Plakhine, D., Kleifeld, Y., Weinberg, T., Lior, E., Eizenberg, H., Tanaami, Z., Avdat, N., Jacobsohn, R., Portnoy, V. H., Katzir, N., Joel, D. M., Buxbaum, H., Goldwasser, Y., Hershenhorn, J., Zamski, E., Kleifeld, Y., Goldwasser, Y., Plakhine, D., Hershenhorn, Y., Golan, S., Herzlinger, G., Chilf, T., Losner-Goshen, Dalia, Portnoy, V. H., Joel, D. M., Aly, R., Hershenhorn, Y., Halpern, N., Kleifeld, Y., Blumenfeld, T., Herzlinger, G., Chilf, T., Shomer-Ilan, Adiva, Mayer, A. M., Bar-Nun, Nurit, Ben-Hod, G., Amsellem, Ziva, Gressel, J., Kernyi, Z., Hornok, L., Cohen, B., Amsellem, Ziva, Gressel, J., Sharon, A., Kitahin, S., Bosak, A., Bar-Peled, Y., Barnea, N., Sibony, M., Yasour, H., Hayut, M., Tal, A., Bosak, A., Alon, Y., El-Nahhal, Y. Z., Nir, S., Polubesova, T., Margulies, L., Siti, E., Kaplan, Ch., Levanon, I., Gokkes, M., Hadar, A., Chachlon, Y., Yovel, H., Colodney, G., Glidai, S., Tal, Shuli, Nir, A., Yasur, E., Kigel, J., Yaacoby, T., Nir, A., Ye, Bin, Gressel, J., Kimel, U., Manulis, Shulamit, Kleitman, Frida, Dror, Orit, Chalupowicz, Laura, Khayat, E., Tsror (Lahkim), Leah, Erlich, Orly, Menashe, A., Wysoki, M., Gerson, U., Slabezki, Y., Dag, A., Efrat, H., Yacobson, B., Palevsky, E., Reuveny, H., Oppenheim, D., Okonis, O., Raccah, B., Kritzman, Anat, Yunis, H., Raccah, B., Gera, A., Tanne, Edna, Cohen, J., Tanne, Edna, Sandu, Z., Alexandrov, Svetlana, Geral, A., Cohen, Y., Farkash, Sonja, Baider, A., Zahavi, Tirza, Reuveni, M., Scheglov, D., Lavee, S., speltoides, Aegilops, Manisterski, J., Ben-Yehuda, Pnina, Shimony, Ayelet, Eilam, Tamar, Anikster, Y., Freeman, S., Lahav, C., Sztejnberg, A., Nitzani, Y., Maimon, M., Katan, Talma, Shtienberg, D., Kritzman, G., Herzog, Z., Openheim, D., Zilberstaine, Miriam, Blatchinsky, Daphna, Elad, Y., Mesika, Y., Elad, Y., Nitzani, Y., Kirshner, B., Shmulevitz, Y., David, Dalia Rav, Sztjenberg, A., Yehezkel, Hanna, Shmuel, D., Taari, E., Posalski, Y., Cohen, Y., Fuchs, M., Mesika, Y., Elad, Y., Nitzani, Y., Kirshner, B., Shmulevitz, Y., David, Dalia Rav, Sztjenberg, A., Yehezkel, Hanna, Shmuel, D., Taari, E., Posalski, Y., Katan, J., Pivonia, S., Cohen, R., Kigel, J., Katan, J., Levite, Rachel, Gamliel, A., Grinstein, A., Zilberg, V., Benihes, Marina, Ucko, Orna, Klein, L., Uriely, E., Stangheilini, M. E., Katan, J., Korolev, Nadia, Katan, J., Katan, Talma, Tsror, Leah, Hazanovsky, Marina, Leviush-Mordechai, Sara, Sivan, Sara, Rekah, Yael, Shtienberg, D., Katan, J., Tsror, Leah, Hazanovsky, Marina, Aharon, M., Peretz-Alon, I., Prusky, D., Beno-Moualem, Delilah, Prusky, D., Yakoby, N., Kobiler, Ilana, Dinoor, A., Prusky, D., Dudai, N., Reuveni, R., Chaimovitch, D., Sa’adi, Daya, Larkov, Olga, Dor, Evgenia, Lewinsohn, E., Putievsky, E., Afek, U., Orenstein, Janeta, Nuriel, E., Carmeli, S., Rodov, V., Bar-Joseph, M., Eshel, D., Ben-Arie, Ruth, Dinoor, A., Prusky, D., Reuven, Michal, Zviebil, Aida, Szmulewich, Y., Kleitman, Frida, Manulis, Shulamit, Ben-Yephet, Y., Ben-Yephet, Y., Reuven, Michal, Zviebil, Aida, Szmulewich, Y., Lavkovits, Airit, Markovits, T., Mor, I., Bar-Yosef, B., Iraki, N. M., Ahmad, M. N., Abu-Sa’id, J. N., Manulis, Shulamit, Barash, I., Assaraf, M., Ginzburg, C., Yarden, O., Katan, J., Gamliel, A., Gamliel, A., Grinstein, A., Ucko, Orna, Mduel, A., Klein, L., Shtienberg, D., Katan, J., Oren, Y., Solel, Z., Kimchi, Miriam, Sadovski, A., Oren, Y., Yogev, E., Yaniv, A., Omari, A., Ofer, I., Sarid, P., Avisar, E., Naot, O., Bing, B., Ovadia, S., Yunis, H., Sachs, Y., Sandu, Z., Mor, Neta, Gotlieb, Y, Zahavi, Tirza, Reuveni, M., Naot, O., Ofer, I., Sarid, P., Yaniv, A., Omari, A., Benishti, Ronit, Bing, B., Ovadia, S., HaMeiri, Y., Blatchinsky, Daphna, Sarig, P., Zahavi, Tirza, Reuveni, M., Yogev, Anat, Barzilai, Y., Balaom, B., Tsror, Leah, Hazanovsky, Marina, Erlich-Holtzer, Orly, Peretz-Alon, I., Ben-David, Tselila, Lang, M., Lubovsky, U., Engel-Kirshner, R., Ofer, I., Omari, A., Benishti, Ronit, Sarid, P., Yaniv, A., Avisar, E., Naot, O., Bing, B., Ben-Arie, Ruth, Yunis, H., Zachs, Y., Dubitzky, A., Mor, Neta, Genaim, N., HaMeiri, Y., Gotlieb, Y., Zahavi, Tirza, Cohen, Y., Reuveni, M., Zahavi, Tirza, Cohen, Y., Porat, R., Vinocur, V., Weisseah, Batya, Cohen, Leah, Droby, S., Dor, Evgenia, Dudai, N., Chaimovitch, D., Larkov, Olga, Putievsky, E., Hershenhorn, J., Sharon, Edna, Bar-Eyal, Meira, Mor, M., Kleifeld, O., Chet, I., Spiegel, Y., Yechye, U., Sztejnberg, A., Nof, E., Rubin, B., Dinoor, A., Dinoor, A., Guske, Susanne, Nof, Esther, Lichter, A., Dvir, Orit, Zutkhi, Y., Kapulonov, Tania, Sonego, Lillian, Sarig, P., Ben-Arie, Ruth, Gamliel, A., Gokkes, M., Israel, S., Skutelski, Yael, Lahav, Tamar, Gamliel, A., Kritzman, G., Peretz-Alon, Y., Becker, E., Zilberg, V., Heiman, O., Shlevin, E., Mahrer, Y., Katan, J., Fluhr, R., Pan, Q., Sela, Marianne, Pisanti, Odelia, Hadrian, Ofra, Fainzilber, Ada, Sivaldi, Sigal, Zamir, D., Silverman, D., Kritzman, G., Katan, J., Ausher, R., Melamed, Y., Gal-On, A., Slutsky, G., Wang, Y., Galiakparov, Nurbol, Aziz, Orly, Tanne, Edna, Sela, I., Gafny, R., Teverovsky, Emma, Akad, F., Gidoni, D., Czosnek, H., Loebenstein, G., Bakshi, S., Yarden, Oded, Sztejnberg, Abraham, Yassur, Inbal, Wolf, S., Dickman, M. B., Mitra, A., Yarden, O., Sharon, A., Robinson, M., Maor, R., Ezra, D., Manulis, Shulamit, Barash, I., Pardes, Einat, Manisterski, J., Ben-Yehuda, Pnina, Kosman, I., Anikster, Y., and Sharon, A.

Published
1999
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5. Genome size in natural and synthetic autopolyploids and in a natural segmental allopolyploid of several Triticeae species

Author

Eilam, T., Anikster, Y., Millet, E., Manisterski, J., and Feldman, M.

Subjects
Genomes -- Measurement, Polyploidy -- Research, Grasses -- Genetic aspects, Grasses -- Natural history, Biological sciences
Abstract

Nuclear DNA amount (1C) was determined by flow cytometry in the autotetraploid cytotype of Hordeum bulbosum, in the cytologically diploidized autotetraploid cytotypes of Elymus elongatus, Hordeum murinum subsp. murinum and Hordeum murinum subsp. leporinum, in Hordeum marinum subsp. gussoneanum, in their progenitor diploid cytotypes, and in a newly synthesized autotetraploid line of E. elongatus. Several lines collected from different regions of the distribution area of every taxon, each represented by a number of plants, were analyzed in each taxon. The intracytotype variation in nuclear DNA amount of every diploid and autotetraploid cytotype was very small, indicating that no significant changes have occurred in DNA amount either after speciation or after autopolyploid formation. The autotetraploid cytotypes of H. bulbosum and the cytologically diploidized H. marinum subsp. gussoneanum had the expected additive amount of their diploid cytotypes. On the other hand, the cytologically diploidized autotetraploid cytotypes of E. elongatus and H. murinum subsp. murinum and H. murinum subsp. leporinum had considerably less nuclear DNA (10%-23%) than the expected additive value. Also, the newly synthesized autotetraploid line of E. elongatus showed similar reduction in DNA as its natural counterpart, indicating that the reduction in genome size occurred in the natural cytotype during autopolyploidization. It is suggested that the diploid-like meiotic behavior of these cytologically dipolidized autotetraploids is caused by the instantaneous elimination of a large number of DNA sequences, different sequences from different homologous pairs, leading to differentiation of the constituent genomes. The eliminated sequences are likely to include those that participate in homologous recognition and initiation of meiotic pairing. A gene system determining exclusive bivalent pairing by utilizing the differentiation between the two groups of homologues has been presumably superimposed on the DNA reduction process. Key words: autopolyploidy, DNA content, DNA sequence elimination, genome size. Le contenu en ADN nucleaire (1C) a ete determine par cytometrie en flux chez les cytotypes suivants : le cyto-type autotetraploide de l'Hordeum bulbosum, les cytotypes autotetraploides diploidises (formant principalement des bivalents) de l'Elymus elongatus, des Hordeum murimum subsp. murinum et Hordeum murimum subsp. leporinum, des Hordeum marinum subsp. gussoneanum, les cytotypes diploides des especes progenitrices et d'un E. elongatus autotetraploide nouvellement synthetise. Plusieurs lignees provenant des differentes regions de l'aire de distribution de ces taxons, chacune representee par plusieurs plantes, ont ete analysees pour chaque taxon. La variation pour le contenu en ADN nucleaire au sein d'un cytotype etait tres faible chez tous les cytotypes diploides et autotetraploides, indiquant qu'aucun changement important n'etait survenu apres la speciation ou la formation d'un autopolyploide. Les cytotypes autotetraploides de l'H. bulbosum et de l'H. marinum subsp. gussoneanum diploidise presentaient la quantite attendue suite a l'addition des cytotypes diploides. Par contre, les cytotypes diploidises de PE. elongatus et des H. murinum subsp. murinum et H. murium subsp. leporinum avaient un contenu en ADN nucleaire nettement moins grand (de 10% a 23% moins) que la somme attendue. De plus, la lignee autotetraploide nouvellement synthetisee de FE. elongatus a affiche une reduction semblable a celle observee chez son pendant naturel ce qui indique que la reduction de la taille du genome serait survenue lors de l'autopolyploidisation chez le cytotype naturel. Les auteurs suggerent que le comportement meiotique de type diploide chez les autotetraploides diploidises est cause par une elimination instantanee d'un grand nombre de sequences, diverses sequences chez differentes paires de chromosomes homologues, menant ainsi a la differenciation des genomes constitutifs. Il est probable que l'on compte parmi les sequences eliminees celles qui participent a la reconnaissance des homologues a l'initiation de l'appariement meiotique. Un systeme genetique entrainant un appariement exclusivement sous forme de bivalents moyennant la differenciation des deux groupes d'homologues se seraient vraisemblablement superposee au processus de reduction de la taille du genome. Mots-cles : autopolyploidie, contenu en ADN, elimination de sequences d'ADN, taille du genome. [Traduit par la Redaction], Introduction Polyploidy, the presence of three or more chromosome sets in an organism, has played a major role in the evolution of multicellular plants (Stebbins 1950, 1971; Grant 1971; Masterson [...]

Published
2009

6. Nuclear DNA amount and genome downsizing in natural and synthetic allopolyploids of the genera Aegilops and Triticum

Author

Eilam, T., Anikster, Y., Millet, E., Manisterski, J., and Feldman, M.

Subjects
Allopolyploid -- Research, Wheat -- Genetic aspects, Biological sciences
Abstract

Abstract: Recent molecular studies in the genera Aegilops and Triticum showed that allopolyploidization (interspecific or intergeneric hybridization followed by chromosome doubling) generated rapid elimination of low-copy or high-copy, noncoding and [...]

Published
2008

7. Genome size and genome evolution in diploid Triticeae species

Author

Eilam, T., Anikster, Y., Millet, E., Manisterski, J., Sagi-Assif, O., and Feldman, M.

Subjects
Wheat -- Genetic aspects, Genomes -- Identification and classification, Plant genetics -- Research, Genetic variation -- Evaluation, Biological sciences
Abstract

Abstract: One of the intriguing issues concerning the dynamics of plant genomes is the occurrence of intraspecific variation in nuclear DNA amount. The aim of this work was to assess [...]

Published
2007

11. Abstracts of Presentations at the 19th Congress of the Israeli Phytopathological Society: February 16–17, 1998 ARO, the Volcani Center, Bet Dagan, Israel

Author

Raviv, M., Nir, I., Pinkas, Y., Shabi, E., Elisha, S., Maimon, Marcell, Szmulewich, Y., Freeman, S., Shabi, E., Nitzani, Y., Katan, Talma, Luzzati, Y., Tsror, Leah, Erlich, Orly, Hazanovsky, Marina, Tsror, Leah, Nachmias, A., Aharon, M., Erlich, Orly, Shtienberg, D., Vintal, H., Nitzani, Y., Brener, S., Retig, B., Rekah, Y., Katan, J., Shtienberg, D., Manisterski, J., Ben-Yehuda, Pnina, Eyal, Z., Eilam, Tamar, Anikster, Y., Shaharabani, Galit, Shtienberg, D., Elad, Y., Dinoor, A., Yedidia, I., Chet, I., Zutra, D., Erlich, Orly, Tsror, Leah, Hadas, Rivka, Kritzman, G., Ben-Yephet, Y., Reuven, Michal, Mor, I., Gera, A., Gerson, U., Taler, D., Cohen, Y., Bitton, Ruth, Cohen, Y., Cohen, Y., Baider, A., Reuveni, M., Benhamou, Nicolle, Kapulnik, Y., Ezrati, Smadar, Schuster, Sylvie, Eshel, A., Eyal, Z., Assaraf, M., Ginzburg, C., Yarden, O., Yatzkan, Enat, Katan, J., Korolev, Nadia, Katan, Talma, Jimenez-Diaz, R. M., Katan, J., Maor, R., Robinson, M., Puyesky, Mariella, Horwitz, B. A., Sharon, A., Pivonia, S., Kigel, J., Cohen, R., Katan, J., Tanne, Edna, Orenstein, Sigalit, Sela, I., Zehavi, Tirza, Klein, M., Gafny, R., Rubinson, E., Galiakparov, N., Piestun, D., Tanne, E., Sela, I., Cohen, J., Zeidan, M., Franck, A., Bekelman, E., Gera, A., Gotman, S., Zeidan, M., Cohen, J., Gera, A., Gera, A., Kritzman, Anat, Cohen, J., Bekelman, Elena, Raccah, B., Manor, H., Ganaim, N., Yunis, H., Kadouri, D., Gal-On, A., Peng, Y. -H., Wang, Y., Singer, Sima, Huet, H., Raccah, B., Edelstein, M., Cohen, R., Paris, H. S., Pivonia, S., Offenbach, Rivka, Pivonia, S., Levita, Rachel, Maduel, A., Isikson, A., Ucko, Orna, Cohen, R., Katan, J., Galperin, Mariana, Cohen, Y., Kenigsbuch, D., Shabi, E., Roberts, A. L., Crute, I. R., Reuveni, M., Harpaz, M., Reuveni, R., Oren, Y., Solel, Z., Kimchi, Miriam, Schneider, R., Ben-Nun, E., Shlevin, E., Dinoor, A., Shtienberg, D., Fallik, E., Grinberg, Shoshana, Alkalai, Sharon, Aharoni, Y., Copel, Azica, Rodov, V., Yekutieli, O., Regev, R., Wiseblum, A., Gamliel, A., Austerweil, Miriam, Benihes, Marina, Kritzman, G., Peretz-Alon, Y., Ucko, Orna, Choutka, C., Steiner, B., Grinshpun, I., Katan, J., Gamliel, A., Grinstein, A., Orion, D., Choutka, C., Steiner, B., Grinshpun, I., Gamliel, A., Grinstein, A., Guetsky, Ruth, Dinoor, A., Elad, Y., and Shtienberg, D.

Published
1998
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13. Abstracts of papers presented at the 8th conference of the Entomological Society of Israel Abstracts of papers presented at the 17th congress of the Israeli Phytopathological Society: January 18, 1996 ARO, The Volcani Center, Bet Dagan, Israel February 19–20, 1996 ARO, The Volcani Center, Bet Dagan, Israel

Author

Freidberg, Amnon, össler, Yoram, Nestel, David, Hirsh, Smadar, Israely, Nimrod, Yuval, Boaz, Warburg, Meirav S., Blay, Sigal, Kaspi, Roy, Hasson, Oren, Rubin, Amos, Landesman, Arieh, Zakkay, Edva, Levy, Ruthi, Meidan, Salo, Mazor, Michal, el-Hadi, Fathi Abd, Gafni, Y., Tsror, Leah, Erlich, Orly, Chen, C., Ben-Ze’ev, I., Kritzman, G., Zutra, D., Assouline, I., Freeman, S., Zilberstaine, Miriam, Levy, Edna, Ben-Zeev, I. S., Dlugatch, Yael, Shabi, E., Katan, Talma, Teviotdale, Beth, Hazanovsky, Marina, Kosto, I., Sharabani, Galit, Shtienberg, D., Elad, Y., Dinoor, A., Yunis, H., Manisterski, J., Ben-Yehuda, Pnina, Kosman, E., Eyal, Z., Eilam, Tamar, Anikster, Y., Pivonia, S., Cohen, R., Ben-Ze’ev, I. S., Kafkafi, U., Katan, J., Edelstein, M., Offenbach, Rivka, Gamliel, A., Shlevin, E., Lazarovits, G., Bar-Lev, N., Chefetz, B., Chen, Y., Hadar, Y., Madi, Lea, Mahrer, Y., Di Primo, P., Grinstein, A., Alon, I. Peretz, Heiman, O., Bar, Z., Serlin, E., Kleifeld, O., Chet, I., Abramsky, Miriam, Yedidia, Iris, Henis, Y., Rodov, V., Peretz, J., Ben-Yehoshua, S., Afek, U., Orenstein, Janeta, Nuriel, E., Austerweil, M., Ben-David, Tsilah, Steiner, B., Riven, Yehudit, Zilberg, V., Amir, R., Livescu, L., Hazanovski, Marina, Aharon, M., Barak, R., Peretz, I., Bing, B., Yaniv, A., Barak, E., Reuveni, M., Zehavi, Tirza, Reuveni, R., Fallik, E., Grinberg, Shoshana, Ziv, O., Paster, N., Menasherov, Mazal, Ravid, U., Katzir, Irena, Zohar, D., Dreishpun, J., Hefer, Y., Lior, A., Rodman, R., Katz, H., Chalutz, E., Droby, S., Cohen, Lea, Weiss, Batia, Daus, A., Horev, Batia, Chalupovicz, Laura, Yogev, E., Shaknai, A., Beth-Din, D., Berson, M., Sztejnberg, A., Mairovich, G., Marder, J. B., Lischinsky, Smadar, Manulis, Shulamit, Galperin, M., Levy, Y., Korolev, Nadia, Flaishman, M. A., Kolattukudy, P. E., Prusky, D., Wattad, C., Kobiler, Ilana, Cohen, Y., Baider, A., Reshit, Zipora, Farkas, Sonia, Ga’ash, D., Kleitman, Frieda, Dror, O., Elisha, S., David, I., Rav-David, Dalia, Herzog, Z., Burger, Y., Shraiber, Shoshana, Elkind, Y., Levin, Eilit, Grünzweig, J. M., Rabinowitch, H. D., Ben-Tal, Y., Wodner, Maria, Solel, Z., Mogilner, N., Kimchi, Miriam, Gafni, R., Bar-Joseph, M., Madar, Z., Kimchi, M., Riov, J., Oved, S., Yarden, O., Haviv, Anat, Barash, I., Sietsma, J. H., Din, Adi Beth, Ziv, Vered, Sjollema, K. A., Greenberg, Ronit, Shreiber, Shoshana, Katzir, Nurit, Kalman, Sara, Zamir, D., Pnini-Cohen, Smadar, Zilberstein, Avian, Schuster, Silvia, Sharon, A., Rotem, Y., Weiss, Nava, Shapira, R., Eyal, Osnat, Matt, Anyet, Salomon, R., Shifer, O., Rosenberg, E., Hadar, Ester, Gottlieb, Y., Sando, T., Ben-David, Tsilla, Hadar, Esther, Cohen, J., Franck, A., Umiel, N., Hadar, E., Finkelstein, S., Gera, A., Levy, S., Lesemann, D. -E., Lapidot, M., Cohen, S., Ben-Joseph, Rachel, Harush, S. Ben, Pilowsky, M., Shifriss, C., Zelcer, A., Wolf, Dalia, Faure, J. -E., Bar, M., Rosner, A., Gal-On, A., Lev, E., Livne, H., Omer, S., Yunes, H., Singer, S., Raccah, B., Antignus, Y., Pearlsman, Malenia, Lachman, O., Koren, A., Bernardi, Francoise, DiFonzo, C. D., Ragsdale, D. W., Radcliffe, E. B., Mawassi, M., Mietkiewska, Elzbieta, Hilf, M. E., Ashulin, Lilach, Karasev, A. V., Gafny, R., Lee, R. F., Garnsey, S. M., Dawson, W. O., Yang, G., Frank, A., Febres, V. J., Niblett, C. L., Gofman, Rose, Koltai, Hinanit, Chejanovsky, N., Spiegel, Y., Oka, Y., Mor, M., Cohen, Hadas, Oppenheim, D., Benyamini, Y., Orion, D., Bar-Eyal, Meira, Israeli, Y., and Gottlieb, J.

Published
1996
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14. Abstracts of papers presented at the 16th Congress of the Israeli Phytopathological Society: February 20–21, 1995 ARO, The Volcani Center, Bet Dagan, Israel

Author

Saranga, Y., Blachinsky, Daphna, Shtienberg, D., Ben-Hador, G., Dinoor, A., Einav, Dalia, Luria, G., Tsook, M., Hadar, Esther, Katan, J., Antignus, Y., Ben-Joseph, Rachel, Mor, Neta, Cohen, S., Zimand, Gilly, Elad, Y., Gagulashvilly, Nilly, Chet, I., Dubitzki, E., Shavit, N. Bar, Brodny, U., Wahl, I., Reuveni, M., Agapov, V., Oppenheim, D., Cohen, Hadas, Reuveni, R., Shaul, Orna, Pinkas, Y., Maymon, Marcell, Szmulewich, Y., Kritzman, G., Grinstein, A., Lev, E., Raviv, B., Gal-On, A., Singer, Sima, Raccah, B., Dudai, N., Putievsky, E., Cohen, Y., Baider, A., Rodov, V., Burns, P., Ben-Yehoshua, S., Afek, U., Aharoni, N., Carmeli, S., Tsror (Lahkim), Leah, Hazanovski, M., Daktiar, N., Erlich, Orly, Skutelsky, Yael, Matan, E., Arraf, G., Gamliel, A., Eshel, D., Klein, L., Peretz, I., Nachmias, A., Ucko, Orna, Austerweil, Miriam, Steiner, Bracha, Maduel, A., Manisterski, J., Ben-Yehuda, Pnina, Bar, E., Eyal, Z., Korakh, Tamar, Anikster, Y., Eilam, Tamar, Vintal, H., Stein, Tamar, Schuster, Silvi, Pnini-Cohen, Smadar, Zilberstein, Aviah, Zuckerman, E., Eshel, A., Huang, R., Gournik, A., Ganz, Shelly, Bahat, A., Bilitzer, N., Alon, D., Weinberg, B., Tamari, R., Levy, Y., Volpin, Hanne, Okon, Y., Kapulnik, Y., Freeman, S., Shabi, E., Elisha, S., Katan, Talma, Kleitman, Frida, Koroleva, Nadia, Bao, J. R., Boehm, E. W. A., Kistler, H. C., Bushnell, W. R., McLaughlin, D. J., Paster, N., Trostanetsky, A., Menasherov, Mazal, Bar-Zur, A., Meir, Ayala, Yarden, O., Shapira, R., Eyal, Osnat, Salomon, R., Cohen, R., Greenberg, Ronit, Shreiber, Shoshana, Katzir, Nurit, Manulis, Shulamit, Lichter, A., Nitzan, R., Valinsky, L., Barash, I., Madi, Lea, Ebbole, D. J., Yatzkan, Einat, Sharon, A., Yoder, O. C., Turgeon, B. G., Yogev, E., Zehavi, Tirza, Benyamini, Y., Epstein, R., Badawia, G., Cohen, Bat-Hen, Gornik, A., Ovadia, A., Baum, D., Cohen, Idit, Rivan, Yehudit, Levanon, I., Orion, D., Bar-Eyal, Meira, Israeli, Y., Mor, M., Sharon, Edna, Cohen, Lydia, Kahane, I., Spiegel, Y., Kaplan, I., Roossinck, M., Palukaitis, P., Franck, A., Gera, A., Loebenstein, G., Shlamovitz, Noemi, Spiegel-Roy, P., Tanne, Edna, Ganaim, N., Klein, M., Sikron, Noga, Cohen, J., Shoval, S., Lilien-Kipnis, Hanna, Kuperman, Adela, Judah, Elizabeth, Sandler-Ziv, Dorit, Yon, A., Koch, Margery, Levy, S., Tanami, Z., Boudon-Padieu, E., Kuszala, C., Oko, Orna, Kenig, A., Ben-Dar, M., Gafni, R., Perlsman, Malenia, Lewandowski, D. J., Dawson, W. O., Lapidot, M., Cooper, B., Dodds, J. A., and Beachy, R. N.

Published
1995
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15. Abstracts of papers presented at the 14th Congress of the Israeli Phytopathological Society Abstracts of papers presented at the 8th Meeting on Whiteflies in Field Crops, Vegetables and Ornamentals: February 15-16, 1993 ARO, The Volcani Center, Bet Dagan, Israel March 2, 1993 ARO, The Volcani Center Bet Dagan, Israel

Author

Ben-Ze’ev, I. S., Levy, Edna, Ben-Gal, Osnat, Shabtay, Y., Raccah, B., Singer, S., Katan, J., Shani, Alona, Grinstein, A., Kritzman, G., Manulis, Shulamit, Kogen, Nina, Reuven, Michal, Ben-Yephet, Y., Pinkas, Y., Elisha, S., Shabi, E., Katan, Talma, Gera, Hilda, Sarig, P., Monjauze, Antoinette, Lisker, N., Itach, I., Ben-Arie, Ruth, Afek, U., Aharoni, N., Carmeli, S., Barkai-Golan, Rivka, Roizer, Lucy, Lazar, A., Grinberg, Shoshana, Lomaniec, Ella, Fallik, E., Cohen, R., Bolter, Caroline J., Brammall, R. A., Lazarovits, G., Leibovich, G., Elkind, Y., Paris, H. S., Dinoor, A., Cohen, Y., Eya, Helena, Cohen, A., Salomon, R., Bar-Zur, A., Dubitzki, E., Gera, A., Akad, F., Teverovsky, E., Aly, R., Tam, Y., Loebenstein, G., Manisterski, J., Ben-Yehuda, Penina, Nof, Esther, Tanne, Edna, Shtienberg, D., Naphtalyahu, U., Zohar, D., Hefer, Y., Yaniv, A., Bernstein, Beryl, Zehr, E., Schreiber, Shoshana, Graph, S., Yogev, Anat, Karchi, Z., Dori, S., Solel, Z., Barash, I., Hadar, Esther, Jacoby, B., Zamski, E., Rotem, Y., Shoseyov, O., Sztejnberg, A., Paster, N., Kuttin, E. S., Menasherov, Mazal, Din, Adi Beth, Yarden, O., Lichter, A., Sagee, O., Gafni, Y., Gruenzweig, J. M., Rabinowitch, H. D., Mor, M., Gokkes, M., Rosner, A., Stein, Adina, Levy, S., Antignus, Y., Perlsman, Melanie, Ben-Joseph, Rachel, Cohen, S., Levy, D., Ben-Dov, Y., Hecht, M., Zinger, Sima, Bernardi, Francoise, Lachman, O., Avidan, Y., Mawassi, M., Gafni, R., Shalitin, D., Bar-Joseph, M., Fahima, T., Wu, Y., Kazmierczak, P., Zhang, L., Van Alfen, N. K., Amzaleg, Orly, Kirshner, B., Nitzani, Y., Negev, S., Shlevin, E., Gamliel, A., Berliner, Ruhama, Heller, M., Gonen, I., Hyman, O., Eshet, A., Steiner, Bracha, Rivan, Yehudith, Sagi, I., Abramovitz, B., Dagan, Y., Gotlib, Z., Bar, Z., Bazar, A., Cochavi, O., Stapleton, J. J., Szmulewich, Y., Lampel, Miriam, Kirschner, B., Kritzman, Anat, Grinstein, Inbar, Levitin, E., Itach, M., Orion, D., Bar-Eyal, Meira, Wiseblum, A., Shorer, R., Amidror, Mali, Ziv, O., Baider, A., Gisi, U., Aharoni, Y., Temkin-Gorodeiski, Naomi, Copel, Azica, Linn, A., Hagiladi, A., Ravid, U., Zimand, Gilly, Valinsky, Lea, Elad, Y., Chet, I., Catz, H., Bet-Din, D., Droby, S., Gadasi, Y., Daus, A., Cohen, Lea, Weiss, Batia, Horev, Batia, Chalopowicz, Laura, Timar, D., Chalutz, E., Robin, D., Sachs, Y., Forer, G., Lazare, M., Gerling, D., Guershon, M., Stern, Tirza U., Bar, H., Weinberg, A., Perlsman, M., Zeidan, M., Czosnek, H., Berlinger, M. J., Leibush-Mordechai, Sara, Mor, Neta, Fridja, Devora, Ishaaya, I., Mendelson, Zmira, Horowitz, A. R., Veierov, D., Aharonson, N., Kletter, E., Eliyahu, Miriam, Fenigstein, Annie, Bloch, G., and Wool, D.

Published
1993
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16. Abstracts of papers presented at the 12th congress of the israeli phytopathological society

Author

Henis, Y., Rotem, J., Tanne, Edna, Marcus, Ruth, Raccah, B., Dubitzky, E., Reuven, Michal, Nitzani, Y., Vigodsky-Haas, Hillela, Mor, Y., Ben-Yephet, Y., Shtienberg, D., Fry, W. E., Yunis, H., Elad, Y., Mahrer, Y., Gera, A., Loebenstein, G., Salomon, R., Franck, A., Amsellem, Z., Sharon, A., Gressel, J., Quimby, P. C., Sharon, A., Gressel, J., Amsellem, Z., Zelikovitch, Noga, Eyal, Z., Levy, Edna, Eyal, Z., Hochman, Ayala, Chet, I., Brick, R. I., Solel, Z., Ze’ev, I. S. Ben, Madar, Z., Madar, Z., Solel, Z., Sztejnberg, A., Volpin, Hanne, Yunis, H., Elad, Y., Fluhr, R., Lotan, T., Ori, N., Prusky, D., Plumbley, R. A., Kobiler, Ilana, Balass, M., Cohen, Y., Bar-Joseph, M., Cohen, R., Blayer, B., Ben-Yephet, Y., Reuven, M., Mor, Y., Lampel, M., Vigodsky-Haas, Hillela, Manisterski, J., Kadish, D., Grinberger, M., Cohen, Y., Kadish, D., Cohen, Y., Manulis, Shulamit, Gafni, Y., Zutra, D., Ophir, Y., Barash, I., Katan, Talma, Zamir, D., Sarfatti, Matti, Katan, J., Yunis, H., Elad, Y., Omari, A., Zelberstein, Y., Grinstein, A., Elad, Y., Tsdaka, Z., Kirshner, B., Frankel, H., Aviram, H., Zilberstein, Y., Spiegel, Y., Cohn, E., Galper, S., Lapid, Drorit, Sharon, Edna, Chet, I., Inbar, Y., Chet, I., Flaishman, M., Eyal, Z., MANDELBAUM, R., HADAR, Y., Ordentlich, A., Nachmias, A., Strashnov, Y., Chet, I., Madi, Lea, Katan, Talma, Henis, Y., Grinstein, A., Hetzroni, A., Kritzman, G., Gamliel, A., Mor, M., Katan, J., Freeman, S., Sztejnberg, A., Shabi, E., Katan, J., Kritzman, G., Grinstein, A., Gamliel, A., Katan, J., Warshavsky, S., Marashak, G., Huberman, Gilia, Gamliel, A., Katan, J., Freeman, S., Ginzburg, C., Katan, J., Almon, E., Asenheim, D., Oko, O., Ben-Yephet, Y., Mhameed, S., Toledano, Z., Regev, A., Szmulewich, Y., Sando, Z., Dar, S., Frank, Z. R., Katan, J., Ben-Yephet, Y., Blayer, B., Cohen, R., Katan, J., Mor, Mishael, Jurkevitch, E., Hadar, Y., Chen, Y., Krikun, J., Peretz, Y., Barak, R., Livescu, L., Nachmias, A., Kritzman, G., Ovadia, S., Meiri, Aliza, Cohen, Ronit, Lisker, N., and Avraham, Hefziba

Published
1990
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19. Abstracts of papers presented at the 8th Congress of the Phytopathological Society of Israel: May 25-26,1983 Bet Dagan, Israel

Author

Zentmyer, G. A., Pinkas, Y., Kariv, Arna, Kenneth, R., Zutra, D., Kritzman, G., Krikun, J., Nachmias, A., Offenbach, R., Ucko, O., Reuveni, R., Halfon-Meiri, Aliza, Cohen, Ronit, Younis, H., Azaizeh, M., Bashan, Y., Okon, Y., Frank, Z. R., Ben-Yephet, Y., Katan, J., Ashri, A., Levy, Y., Levy, Rachel, Cohen, Y., Adar, Y., Arenstein, Z., Yahalomy, Z., Biton, S., Mor, Neta, Keren, Y., Greenberger, A., Siti, E., Frank, Z., Hadas, S., Ben-Gal, Osnat, Shabtai, Y., Solomon, D., Atsmon, S. Y., Szmulewich, Y., Finkelstein, Edith, Yaakobi, C., Hershenhorn, J., Gerson, U., Jakoby, T., Sztejnberg, A., Anikster, Y., Sarig, Dalia, Sadeh, R., Chet, I., Bashi, Esther, Madar, Z., Binyamini, N., Eshed, Nava, Shteinberg, D., Dinoor, A., Segal, A., Eyal, Helena, Ruben, D., Manisterski, J., Reuveni, M., Samoucha, Y., Shabi, E., Marton, Kela, Zelig, Y., Elisha, S., Zeidan, O., Elad, Y., Hadar, Y., Mazar, S., Harman, G. E., Taylor, A. G., Norton, J. M., Straschnow, Y., Sivan, A., Kleifeld, O., Hetzroni, A., Grinstein, A., Antler, A., Alper, Y., Frankel, H., Ziv, O., Livescu, L., Keen, N. T., Afek, U., Goldschmidt, Z., Sklarz, B., Zilberstein, Y., Henis, Y., Glazer, I., Orion, D., Gera, A., Loebenstein, G., Goodman, R. N., Balass, M., Haas, J. H., Bar-Yosef, B., Leviov, Miriam, Lisker, N., Paster, N., Efraim, A. Ben, Cohen, E., Shachnai, A., Prusky, D., Eaks, I., Aharoni, Y., Barkai-Golan, Rivka, Aharoni, N., Philosoph-Hadas, Sonia, Tanne, Edna, Marco, S., Antignus, Y., Spiegel, Sara, Salomon, R., Alper, Miriam, Bar-Joseph, M., Oren, Y., Rosner, A., Ginzburg, Irit, Omary, N., Barnea, A., Maoz, A., Vigodsky-Haas, Hillela, Rieger-Stein, Adina, Levy, S., Dubitzky, E., Urielli, E., Ruben, Michal, Kirschner, B., Ozeri, Y., Kirshner, B., Lavi, Ayelet, and Eshel, M.

Published
1983
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20. Abstracts of papers presented at the 11th congress of the phytopathological society of Israel February 15–16,1988 Bar-Ilan University, Ramat Gan, Israel

Author

Loebenstein, G., Franck, A., Abir, H., Holin, M., Barak, E., Cohen, A., Chalutz, E., Ben-Arie, Ruth, Droby, S., Weiss, Batya, Karni, Leah, Kobiler, Ilana, Bar-Shira, Einav, Barkai-Golan, Rivka, Eyal, Helena, Kadish, D., Samoucha, Y., Bashan, Bilha, Levy, Y., Abadi, Rachel, Benderly, Michal, Meiri, A., Chet, I., Pe’er, Sara, Fahima, T., Katan, J., Henis, Y., Sztejnberg, A., Galper, S., Abo-Foul, S., Mandelbaum, R., Gorodetzki, Barbara, Hadar, Y., Bonne-Nitzani, Elinoar, Kenneth, R. G., Freeman, S., Gamliel, A., Peretz, E., Eshed, Nava, Shimshoni, Gilly, Elad, Y., Yona, I., Pinkas, Y., Yunis, H., Solel, Z., Volpin, Hanne, Zilberstein, Miryam, Ben-Yephet, Y., Szmulewich, Y., Kritzman, G., Kimchi, M., Katan, Talma, Kariv, Arna, Dori, S., Levy, Edna, Zelikovitch, Noga, Frumkin, O., Lisker, N., Wilson, C. L., Kleifeld, Y., Borg, D., Omary, N., Reuveni, R., Hadar, Esther, Ziv, O., Raviv, M., Allingham, Yael, Bar, R., Mahrer, Y., Gelerenter, Ilana, Zeharia, Jehudith, Anikster, Y., Rothchild, Hanna, Manisterski, J., Bar-Tsur, A., Tsror, Leah, Nachmias, A., Kaufman, Z., Livescu, L., Krikun, J., Orenstein, Janette, Perombelon, M., Ben-Hur, M., Tibor, M., Dinoor, A., Prusky, D., Levanony, Hanna, Bashan, Y., Or, R., Siti, E., Bruton, B. D., Jeger, M. J., Tamari, R., Grinstein, A., Frankel, H., Austerweil, Miriam, Rivan, Yehudith, Shtainer, Bracha, Madar, Z., Greenberger, A., Baum, D., Eyal, Z., Danon, Tamar, Hershenhorn, J., Barash, I., Kobiler, D., Jacoby, B., Blumental-Yonassi, Jill, Paster, N., Ben-Ze’ev, I. S., Frank, A., Bar-Joseph, M., and Koltin, Y.

Published
1988
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21. Abstracts of papers presented at the first Israeli-Italian phytopathological symposium: February 13–15, 1989 Bet Dagan, Israel

Author

Kenneth, R. G., Ankster, Y., Manistersh, J., Wahl, I., Manisterski, J., Ragazzi, A., Moriondo, F., Moriondo, B. Naldini, Anikster, Y., Ordentuch, A., Migheli, Q., Sivan, A., Gambaldi, A., Noi, Lea, Henk, Y., Pe’Er, Sara, Chet, I., Sztejnberg, A., Locci, R., Minardi, Paola, Stefani, E., Mazzucchi, U., Manulis, Shulamit, Clark, Ellen, Ophir, Y., Gafni, Y., Barba, Marina, Rollo, F., Catara, A., Amici, A., Di Silvestro, I., Scala, F., Capparelli, R., Iannelu, D., Noviello, C., Prusky, D., Saka, H., Magro, P., Marciano, P., Varon, F. FA, Bottalico, A., Visconti, A., Logrieco, A., Nachmias, A., Orenstein, Jannete, Livescu, L., Graniti, A., Raddi, P., Panconesi, A., Matta, A., Gentile, I. Abbattista, Ferraris, L., Scala, A., Barash, L, Bitan, N., Kordova, I., Krdcun, J., Nachmias, A., Zacheo, G., Elad, Y., Ayish, N., Ziv, O., Tettel, D. C., Aharoni, Y., Barkai-Golan, R., Elad, Y., Katan, Talma, Gullino, M. L., Aloi, C., Garibaldi, A., Carita, G., Greco, N., Vannaci, G., Triolo, E., Greenberger, A., Freeman, S., Gamliel, A., Yogev, A., Katan, J., Gamliel, A., Katan, J., Tanne, Edna, Raccah, B., Marcus, Ruth, Lli, G., Prati, S., Conti, M., Eynard, A., Piazzolla, P., Faccoli, G., Forni, M., Kritzman, G., Krtzman, G., Grinstein, A., Riven, Yehuduh, Warshavsky, S., Frankel, H., Bazzi, C., Burr, T. J., Surico, G., Bashan, Bilha, Levy, Y., Cohen, Y., Shacham, Zohar Keren, Lisker, N., Ben-Arie, Ruth, Rossi, V., Battilani, P., Brodny, U., Vannacci, G., Porta-Puglia, A., and Delogu, G.

Published
1989
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22. Genome Size in Diploids, Allopolyploids, and Autopolyploids of Mediterranean Triticeae

Author

Eilam, T., Anikster, Y., Millet, E., Manisterski, J., and Feldman, M.

Subjects
Article Subject, fungi
Abstract

Nuclear DNA amount, determined by the flow cytometry method, in diploids, natural and synthetic allopolyploids, and natural and synthetic autopolyploids of the tribe Triticeae (Poaceae) is reviewed here and discussed. In contrast to the very small and nonsignificant variation in nuclear DNA amount that was found at the intraspecific level, the variation at the interspecific level is very large. Evidently changes in genome size are either the cause or the result of speciation. Typical autopolyploids had the expected additive DNA amount of their diploid parents, whereas natural and synthetic cytologically diploidized autopolyploids and natural and synthetic allopolyploids had significantly less DNA than the sum of their parents. Thus, genome downsizing, occurring during or immediately after the formation of these polyploids, provides the physical basis for their cytological diploidization, that is, diploid-like meiotic behavior. Possible mechanisms that are involved in genome downsizing and the biological significance of this phenomenon are discussed.

Published
2010
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38. Self-fertility and other distinguishing characteristics of a new morphotype of Puccinia coronatapathogenic on smooth brome grass

Author

Anikster, Y., Eilam, T., Manisterski, J., and Leonard, K. J.

Abstract

A new morphotype of Puccinia coronata, pathogenic to Bromus inermis, a common roadside and pasture grass in the northern United States, was discovered in the 1990s and described as P. coronataf. sp. bromiby Delgado et al in 2001. Puccinia coronataf. sp. bromidoes not require fertilization of pycnia to produce aecia on its alternate host, whereas fertilization is required in all other varieties or formae speciales of P. coronatawith aecial hosts in the family Rhamnaceae and for which life cycles have been described. Promycelia of P. coronataf. sp. bromiproduce only two basidiospores, and each receives a pair of nuclei from the promycelium. The nuclei divide again so that mature basidiospores each contain four nuclei. Puccinia coronataf. sp. bromihas smaller teliospores than P. coronatavar. avenae, and its substomatal vesicles are non-septate and distinctly shaped compared to those of P. coronatavar. avenae. In addition, nuclei of P. coronataf. sp. bromicontain less DNA than those of P. coronatavar. avenae. Puccinia coronataf. sp. bromiis further distinguished from P. coronatavar. avenaeand P. coronatavar. hordeiin being avirulent on both oat and barley, whereas neither P. coronatavar. avenaenor P. coronatavar. hordeiare virulent on Bromus inermis.

Published
2003
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39. Resistance of Wild Barley Accessions from Israel to Leaf Rust Collected in the USA and Israel1

Author

Manisterski, J., Treeful, Linda, Tomerlin, J. R., Anikster, Y., Moseman, J. G., Wahl, I., and Wilcoxson, R. D.

Abstract

Wild barley (Hordeum spontaneumC. Koch) is being used to develop improved barley (H. vulgareL.) cultivars. It is a source of genes for resistance against leaf rust (Puccinia hordeiOtth) but the evaluation of this source has been done at only a few locations, and to a narrow range of the virulence available. In this study, accessions of wild barley that had been exposed over a 10‐yr period to numerous isolates of leaf rust indigenous in Israel, were reevaluated for resistance in glasshouse and field trials in Israel and the USA to 11 isolates of leaf rust that varied greatly in virulence and origin. Reactions of seedlings confirmed that resistance to leaf rust is common in wild barley. Twelve accessions were resistant or contained plants that were resistant to all the pathogen isolates tested at each location. At St. Paul, MN, accession reactions in the glasshouse and the field were generally similar. At Bet Dagan, Israel, resistance was recognized in the field by low infection types to the rust as well as by slow rusting. Some lines were fully resistant in the USA, but they rusted slowly in Israel. All accessions from dry parts of Israel were susceptible to all isolates of the pathogen probably because they have never been infected with the pathogen. The accessions studied and the methods of study may be useful for indepth work on host‐parasite evolution, especially the incompatible relationships.

Published
1986
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45. A single NLR gene confers resistance to leaf and stripe rust in wheat.

Author

Sharma D, Avni R, Gutierrez-Gonzalez J, Kumar R, Sela H, Prusty MR, Shatil-Cohen A, Molnár I, Holušová K, Said M, Doležel J, Millet E, Khazan-Kost S, Landau U, Bethke G, Sharon O, Ezrati S, Ronen M, Maatuk O, Eilam T, Manisterski J, Ben-Yehuda P, Anikster Y, Matny O, Steffenson BJ, Mascher M, Brabham HJ, Moscou MJ, Liang Y, Yu G, Wulff BBH, Muehlbauer G, Minz-Dub A, and Sharon A

Subjects
Aegilops genetics, Aegilops microbiology, Plants, Genetically Modified genetics, Genes, Plant, Alleles, Triticum genetics, Triticum microbiology, Triticum immunology, Plant Diseases microbiology, Plant Diseases genetics, Plant Diseases immunology, Disease Resistance genetics, Puccinia pathogenicity, Basidiomycota pathogenicity, Basidiomycota physiology, NLR Proteins genetics, Phylogeny, Plant Proteins genetics, Plant Proteins metabolism, Plant Leaves microbiology, Plant Leaves genetics
Abstract

Nucleotide-binding leucine-rich repeat (NLR) disease resistance genes typically confer resistance against races of a single pathogen. Here, we report that Yr87/Lr85, an NLR gene from Aegilops sharonensis and Aegilops longissima, confers resistance against both P. striiformis tritici (Pst) and Puccinia triticina (Pt) that cause stripe and leaf rust, respectively. Yr87/Lr85 confers resistance against Pst and Pt in wheat introgression as well as transgenic lines. Comparative analysis of Yr87/Lr85 and the cloned Triticeae NLR disease resistance genes shows that Yr87/Lr85 contains two distinct LRR domains and that the gene is only found in Ae. sharonensis and Ae. longissima. Allele mining and phylogenetic analysis indicate multiple events of Yr87/Lr85 gene flow between the two species and presence/absence variation explaining the majority of resistance to wheat leaf rust in both species. The confinement of Yr87/Lr85 to Ae. sharonensis and Ae. longissima and the resistance in wheat against Pst and Pt highlight the potential of these species as valuable sources of disease resistance genes for wheat improvement., Competing Interests: Competing interests The authors declare the following competing interests: D.S., R.A., R.K, E.M., A.M-D., and A.S. are inventors on the US patent application 63/250,413 filed by Ramot (Tel Aviv University) and relating to the use of Yr87/Lr85 for leaf and stripe rust resistance in transgenic wheat. All other authors claim no competing interests., (© 2024. The Author(s).)

Published
2024
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46. 36-year study reveals stability of a wild wheat population across microhabitats.

Author

Dahan-Meir T, Ellis TJ, Mafessoni F, Sela H, Rudich O, Manisterski J, Avivi-Ragolsky N, Raz A, Feldman M, Anikster Y, Nordborg M, and Levy AA

Subjects
Phenotype, Microsatellite Repeats genetics, Models, Genetic, Genetic Variation, Triticum genetics, Genetics, Population, Genotype, Ecosystem
Abstract

Long-term genetic studies of wild populations are very scarce, but are essential for connecting ecological and population genetics models, and for understanding the dynamics of biodiversity. We present a study of a wild wheat population sampled over a 36-year period at high spatial resolution. We genotyped 832 individuals from regular sampling along transects during the course of the experiment. Genotypes were clustered into ecological microhabitats over scales of tens of metres, and this clustering was remarkably stable over the 36 generations of the study. Simulations show that it is difficult to determine whether this spatial and temporal stability reflects extremely limited dispersal or fine-scale local adaptation to ecological parameters. Using a common-garden experiment, we showed that the genotypes found in distinct microhabitats differ phenotypically. Our results provide a rare insight into the population genetics of a natural population over a long monitoring period., (© 2024 The Author(s). Molecular Ecology published by John Wiley & Sons Ltd.)

Published
2024
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47. Virulence Survey of Puccinia striiformis in Israel Revealed Considerable Changes in the Pathogen Population During the Period 2001 to 2019.

Author

Kosman E, Ben-Yehuda P, Manisterski J, Anikster Y, and Sela H

Subjects
Virulence genetics, Israel, Genotype, Triticum genetics, Plant Diseases genetics, Basidiomycota genetics
Abstract

A total of 353 urediniospore isolates of Puccinia striiformis f. sp. tritici ( Pst ) collected in Israel during 2001 to 2019 were analyzed. Pst pathogenicity was studied with a set of 20 differentials (17 Avocet and 3 other lines). Three periods were compared: 2001 to 2007, 2009 to 2016, and 2017 to 2019. No virulence to Yr5 or Yr15 was detected. Virulence frequencies on Yr4 , Yr10 , Yr24 , and YrSp genes rose to the moderate level (0.28 to 0.44) in 2017 to 2019. Virulence frequencies to Yr2 and Yr9 decreased. One Pst phenotype was identified in all three periods, but its frequency drastically decreased from 0.74 in 2001 to 2016 to 0.21 in 2017 to 2019. The most probable scenario of emergence of wheat yellow rust in Israel is wind dissemination of Pst urediniospores from the Horn of Africa. Variability of the Pst population increased amid considerable evolution with two major transformations in 2009 and 2017. The first modification can be attributed to changes in wheat genetic background in Israel due to deployment of new cultivars resistant to yellow rust since 2004. The second shift in 2017 can be primarily explained by intensive deployment of wheat cultivars resistant to the stem rust race Ug99 in the 2010s in the Horn of Africa. This led to changing genetic backgrounds of the cultivated wheats in the donor region and development and long-distance spread of new Pst phenotypes to Israel. Two singular multivirulent Pst phenotypes were identified in 2019, one of them being closely related to the aggressive Warrior race. Such phenotypes may potentially defeat existing resistances.

Published
2022
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48. Reducing the size of an alien segment carrying leaf rust and stripe rust resistance in wheat.

Author

Khazan S, Minz-Dub A, Sela H, Manisterski J, Ben-Yehuda P, Sharon A, and Millet E

Subjects
Aegilops metabolism, Disease Resistance genetics, Genetic Markers, Plant Diseases microbiology, Polymerase Chain Reaction, Triticum metabolism, Aegilops genetics, Plant Breeding, Plant Diseases genetics, Polymorphism, Single Nucleotide, Triticum genetics
Abstract

Background: Leaf and stripe rusts are two major wheat diseases, causing significant yield losses. The preferred way for protecting wheat from rust pathogens is by introgression of rust resistance traits from wheat-related wild species. To avoid genetic drag due to replacement of large wheat chromosomal segments by the alien chromatin, it is necessary to shorten the alien chromosome segment in primary recombinants., Results: Here we report on shortening of an alien chromosome segment in wheat that carries leaf and stripe rust resistance from Sharon goatgrass (Aegilops sharonensis). Rust resistant wheat introgression lines were selected and the alien region was mapped using genotyping by sequencing. Single polymorphic nucleotides (SNP) were identified and used to generate diagnostic PCR markers. Shortening of the alien fragment was achieved by induced homoeologous pairing and lines with shortened alien chromosome were identified using the PCR markers. Further reduction of the segment was achieved in tertiary recombinants without losing the rust resistance., Conclusions: Alien chromatin in wheat with novel rust resistance genes was characterized by SNP markers and shortened by homoeologous recombination to avoid deleterious traits. The resulting wheat lines are resistant to highly virulent races of leaf and stripe rust pathogens and can be used as both resistant wheat in the field and source for gene transfer to other wheat lines/species.

Published
2020
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49. Linkage disequilibrium and association analysis of stripe rust resistance in wild emmer wheat (Triticum turgidum ssp. dicoccoides) population in Israel.

Author

Sela H, Ezrati S, Ben-Yehuda P, Manisterski J, Akhunov E, Dvorak J, Breiman A, and Korol A

Subjects
Chromosome Mapping, Chromosomes, Plant, Genes, Plant, Genetic Association Studies, Genotype, Israel, Linear Models, Plant Diseases genetics, Plant Diseases microbiology, Polymorphism, Single Nucleotide, Triticum microbiology, Basidiomycota, Disease Resistance genetics, Linkage Disequilibrium, Triticum genetics
Abstract

Key Message: Rapid LD decay in wild emmer population from Israel allows high-resolution association mapping. Known and putative new stripe rust resistance genes were found. Genome-wide association mapping (GWAM) is becoming an important tool for the discovery and mapping of loci underlying trait variation in crops, but in the wild relatives of crops the use of GWAM has been limited. Critical factors for the use of GWAM are the levels of linkage disequilibrium (LD) and genetic diversity in mapped populations, particularly in those of self-pollinating species. Here, we report LD estimation in a population of 128 accessions of self-pollinating wild emmer, Triticum turgidum ssp. dicoccoides, the progenitor of cultivated wheat, collected in Israel. LD decayed fast along wild emmer chromosomes and reached the background level within 1 cM. We employed GWAM for the discovery and mapping of genes for resistance to three isolates of Puccinia striiformis, the causative agent of wheat stripe rust. The wild emmer population was genotyped with the wheat iSelect assay including 8643 gene-associated SNP markers (wheat 9K Infinium) of which 2,278 were polymorphic. The significance of association between stripe rust resistance and each of the polymorphic SNP was tested using mixed linear model implemented in EMMA software. The model produced satisfactory results and uncovered four significant associations on chromosome arms 1BS, 1BL and 3AL. The locus on 1BS was located in a region known to contain stripe rust resistance genes. These results show that GWAM is an effective strategy for gene discovery and mapping in wild emmer that will accelerate the utilization of this genetic resource in wheat breeding.

Published
2014
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50. Resistance of Aegilops Species from Israel to Widely Virulent African and Israeli Races of the Wheat Stem Rust Pathogen.

Author

Scott JC, Manisterski J, Sela H, Ben-Yehuda P, and Steffenson BJ

Abstract

Widely virulent races of the stem rust pathogen (Puccinia graminis f. sp. tritici) such as those isolated from Africa (e.g., TTKSK, isolate synonym Ug99) threaten wheat production worldwide. To identify Aegilops accessions with effective resistance to such virulent stem rust races, up to 10 different species from Israel were evaluated against African races TTKSK, TTKST, and TTTSK and the Israeli race TTTTC as seedlings in the greenhouse. A wide diversity of stem rust reactions was observed across the Aegilops spp. and ranged from highly resistant (i.e., infection type 0) to highly susceptible (infection type 4). The frequency of resistance within a species to races TTTTC and TTKSK ranged from 7 and 14%, respectively, in Aegilops searsii to 98 and 100% in AE. speltoides. In all, 346 accessions were found resistant to the three African races and 138 accessions were resistant (or heterogeneous with a resistant component) to all four races. The species with broadly resistant accessions included Ae. longissima (59 accessions), Ae. peregrina (47 accessions), Ae. sharonensis (15 accessions), Ae. geniculata (9 accessions), Ae. kotschyi (5 accessions), and Ae. bicornis (3 accessions). Few geographical trends or correlations with climatic variables were observed with respect to stem rust resistance in the Aegilops spp. The exception was Ae. longissima infected with race TTTTC, where a high frequency of resistance was found in central and northern Israel and a very low frequency in southern Israel (Negev desert region). This geographical trend followed a pattern of annual precipitation in Israel, and a significant correlation was found between this variable and resistance in Ae. longissima. Although difficult, it is feasible to transfer resistance genes from Aegilops spp. into wheat through conventional wide-crossing schemes or, alternatively, a cloning and transformation approach. The broadly resistant accessions identified in this study will be valuable in these research programs.

Published
2014
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