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4. The Selaginella Genome Identifies Genetic Changes Associated with the Evolution of Vascular Plants

Author

Banks, Jo Ann, Nishiyama, Tomoaki, Hasebe, Mitsuyasu, Bowman, John L., Gribskov, Michael, dePamphilis, Claude, Albert, Victor A., Aono, Naoki, Aoyama, Tsuyoshi, Ambrose, Barbara A., Ashton, Neil W., Axtell, Michael J., Barker, Elizabeth, Barker, Michael S., Bennetzen, Jeffrey L., Bonawitz, Nicholas D., Chapple, Clint, Cheng, Chaoyang, Correa, Luiz Gustavo Guedes, Dacre, Michael, DeBarry, Jeremy, Dreyer, Ingo, Elias, Marek, Engstrom, Eric M., Estelle, Mark, Feng, Liang, Finet, Cédric, Floyd, Sandra K., Frommer, Wolf B., Fujita, Tomomichi, Gramzow, Lydia, Gutensohn, Michael, Harholt, Jesper, Hattori, Mitsuru, Heyl, Alexander, Hirai, Tadayoshi, Hiwatashi, Yuji, Ishikawa, Masaki, Iwata, Mineko, Karol, Kenneth G., Koehler, Barbara, Kolukisaoglu, Uener, Kubo, Minoru, Kurata, Tetsuya, Lalonde, Sylvie, Li, Kejie, Li, Ying, Litt, Amy, Lyons, Eric, Manning, Gerard, Maruyama, Takeshi, Michael, Todd P., Mikami, Koji, Miyazaki, Saori, Morinaga, Shin-ichi, Murata, Takashi, Mueller-Roeber, Bernd, Nelson, David R., Obara, Mari, Oguri, Yasuko, Olmstead, Richard G., Onodera, Naoko, Petersen, Bent Larsen, Pils, Birgit, Prigge, Michael, Rensing, Stefan A., Riaño-Pachón, Diego Mauricio, Roberts, Alison W., Sato, Yoshikatsu, Scheller, Henrik Vibe, Schulz, Burkhard, Schulz, Christian, Shakirov, Eugene V., Shibagaki, Nakako, Shinohara, Naoki, Shippen, Dorothy E., Sørensen, Iben, Sotooka, Ryo, Sugimoto, Nagisa, Sugita, Mamoru, Sumikawa, Naomi, Tanurdzic, Milos, Theißen, Günter, Ulvskov, Peter, Wakazuki, Sachiko, Weng, Jing-Ke, Willats, William W.G.T., Wipf, Daniel, Wolf, Paul G., Yang, Lixing, Zimmer, Andreas D., Zhu, Qihui, Mitros, Therese, Hellsten, Uffe, Loqué, Dominique, Otillar, Robert, Salamov, Asaf, Schmutz, Jeremy, Shapiro, Harris, Lindquist, Erika, Lucas, Susan, Rokhsar, Daniel, and Grigoriev, Igor V.

Published
2011
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6. The ADAXIALIZED LEAF1 gene functions in leaf and embryonic pattern formation in rice

Author

Hibara, Ken-Ichiro, Obara, Mari, Hayashida, Emi, Abe, Masashi, Ishimaru, Tsutomu, Satoh, Hikaru, Itoh, Jun-Ichi, and Nagato, Yasuo

Subjects
Embryonic development, Universities and colleges, Cysteine, Biological sciences
Abstract

To link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.ydbio.2009.07.042 Byline: Ken-ichiro Hibara (a), Mari Obara (a), Emi Hayashida (a), Masashi Abe (a), Tsutomu Ishimaru (a), Hikaru Satoh (b), Jun-ichi Itoh (a), Yasuo Nagato (a) Keywords: ADAXIALIZED LEAF1 (ADL1); Phytocalpain; Adaxial-abaxial axis; Embryo development; Aleurone layer; Epidermis specification Abstract: The adaxial-abaxial axis in leaf primordia is thought to be established first and is necessary for the expansion of the leaf lamina along the mediolateral axis. To understand axis information in leaf development, we isolated the adaxialized leaf1 (adl1) mutant in rice, which forms abaxially rolled leaves. adl1 leaves are covered with bulliform-like cells, which are normally distributed only on the adaxial surface. An adl1 double mutant with the adaxially snowy leaf mutant, which has albino cells that specifically appear in the abaxial mesophyll tissue, indicated that adl1 leaves show adaxialization in both epidermal and mesophyll tissues. The expression of HD-ZIPIII genes in adl1 mutant increased in mature leaves, but not in the young primordia or the SAM. This indicated that ADL1 may not be directly involved in determining initial leaf polarity, but rather is associated with the maintenance of axis information. ADL1 encodes a plant-specific calpain-like cysteine proteinase orthologous to maize DEFECTIVE KERNEL1. Furthermore, we identified intermediate and strong alleles of the adl1 mutant that generate shootless embryos and globular-arrested embryos with aleurone layer loss, respectively. We propose that ADL1 plays an important role in pattern formation of the leaf and embryo by promoting proper epidermal development. Author Affiliation: (a) Graduate School of Agricultural and Life Sciences, University of Tokyo, Tokyo 113-8657, Japan (b) Institute of Genetic Resources, Faculty of Agriculture, Kyushu University, Fukuoka 812-8581, Japan Article History: Received 23 March 2009; Revised 9 July 2009; Accepted 20 July 2009

Published
2009

11. The compact Selaginella genome identifies changes in gene content associated with the evolution of vascular plants

Author

Banks, Jo Ann, Nishiyama, Tomoaki, Hasebe, Mitsuyasu, Bowman, John L., Gribskov, Michael, dePamphilis, Claude, Albert, Victor A., Aono, Naoki, Aoyama, Tsuyoshi, Ambrose, Barbara A., Ashton, Neil W., Axtell, Michael J., Barker, Elizabeth, Barker, Michael S., Bennetzen, Jeffrey L., Bonawitz, Nicholas D., Chapple, Clint, Cheng, Chaoyang, Correa, Luiz Gustavo Guedes, Dacre, Michael, DeBarry, Jeremy, Dreyer, Ingo, Elias, Marek, Engstrom, Eric M., Estelle, Mark, Feng, Liang, Finet, Cédric, Floyd, Sandra K., Frommer, Wolf B., Fujita, Tomomichi, Gramzow, Lydia, Gutensohn, Michael, Harholt, Jesper, Hattori, Mitsuru, Heyl, Alexander, Hirai, Tadayoshi, Hiwatashi, Yuji, Ishikawa, Masaki, Iwata, Mineko, Karol, Kenneth G., Koehler, Barbara, Kolukisaoglu, Uener, Kubo, Minoru, Kurata, Tetsuya, Lalonde, Sylvie, Li, Kejie, Li, Ying, Litt, Amy, Lyons, Eric, Manning, Gerard, Maruyama, Takeshi, Michael, Todd P., Mikami, Koji, Miyazaki, Saori, Morinaga, Shin-ichi, Murata, Takashi, Mueller-Roeber, Bernd, Nelson, David R., Obara, Mari, Oguri, Yasuko, Olmstead, Richard G., Onodera, Naoko, Petersen, Bent Larsen, Pils, Birgit, Prigge, Michael, Rensing, Stefan A., Riaño-Pachón, Diego Mauricio, Roberts, Alison W., Sato, Yoshikatsu, Scheller, Henrik Vibe, Schulz, Burkhard, Schulz, Christian, Shakirov, Eugene V., Shibagaki, Nakako, Shinohara, Naoki, Shippen, Dorothy E., Sørensen, Iben, Sotooka, Ryo, Sugimoto, Nagisa, Sugita, Mamoru, Sumikawa, Naomi, Tanurdzic, Milos, Theißen, Günter, Ulvskov, Peter, Wakazuki, Sachiko, Weng, Jing-Ke, Willats, William W.G.T., Wipf, Daniel, Wolf, Paul G., Yang, Lixing, Zimmer, Andreas D., Zhu, Qihui, Mitros, Therese, Hellsten, Uffe, Loqué, Dominique, Otillar, Robert, Salamov, Asaf, Schmutz, Jeremy, Shapiro, Harris, Lindquist, Erika, Lucas, Susan, Rokhsar, Daniel, and Grigoriev, Igor V.

Subjects
Selaginellaceae, Proteome, fungi, Chlamydomonas, Molecular Sequence Data, food and beverages, Sequence Analysis, DNA, Genes, Plant, Biological Evolution, Article, Bryopsida, Evolution, Molecular, Magnoliopsida, MicroRNAs, Gene Expression Regulation, Plant, RNA, Plant, DNA Transposable Elements, RNA Editing, Genome, Plant, Phylogeny, Plant Proteins, Repetitive Sequences, Nucleic Acid
Abstract

Vascular plants appeared ~410 million years ago, then diverged into several lineages of which only two survive: the euphyllophytes (ferns and seed plants) and the lycophytes. We report here the genome sequence of the lycophyte Selaginella moellendorffii (Selaginella), the first nonseed vascular plant genome reported. By comparing gene content in evolutionarily diverse taxa, we found that the transition from a gametophyte- to a sporophyte-dominated life cycle required far fewer new genes than the transition from a nonseed vascular to a flowering plant, whereas secondary metabolic genes expanded extensively and in parallel in the lycophyte and angiosperm lineages. Selaginella differs in posttranscriptional gene regulation, including small RNA regulation of repetitive elements, an absence of the trans-acting small interfering RNA pathway, and extensive RNA editing of organellar genes.

Published
2011

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