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3. Phylogenomics and the rise of the angiosperms

Author

Zuntini, Alexandre R., Carruthers, Tom, Maurin, Olivier, Bailey, Paul C., Leempoel, Kevin, Brewer, Grace E., Epitawalage, Niroshini, Françoso, Elaine, Gallego-Paramo, Berta, McGinnie, Catherine, Negrão, Raquel, Roy, Shyamali R., Simpson, Lalita, Toledo Romero, Eduardo, Barber, Vanessa M. A., Botigué, Laura, Clarkson, James J., Cowan, Robyn S., Dodsworth, Steven, Johnson, Matthew G., Kim, Jan T., Pokorny, Lisa, Wickett, Norman J., Antar, Guilherme M., DeBolt, Lucinda, Gutierrez, Karime, Hendriks, Kasper P., Hoewener, Alina, Hu, Ai-Qun, Joyce, Elizabeth M., Kikuchi, Izai A. B. S., Larridon, Isabel, Larson, Drew A., de Lírio, Elton John, Liu, Jing-Xia, Malakasi, Panagiota, Przelomska, Natalia A. S., Shah, Toral, Viruel, Juan, Allnutt, Theodore R., Ameka, Gabriel K., Andrew, Rose L., Appelhans, Marc S., Arista, Montserrat, Ariza, María Jesús, Arroyo, Juan, Arthan, Watchara, Bachelier, Julien B., Bailey, C. Donovan, Barnes, Helen F., Barrett, Matthew D., Barrett, Russell L., Bayer, Randall J., Bayly, Michael J., Biffin, Ed, Biggs, Nicky, Birch, Joanne L., Bogarín, Diego, Borosova, Renata, Bowles, Alexander M. C., Boyce, Peter C., Bramley, Gemma L. C., Briggs, Marie, Broadhurst, Linda, Brown, Gillian K., Bruhl, Jeremy J., Bruneau, Anne, Buerki, Sven, Burns, Edie, Byrne, Margaret, Cable, Stuart, Calladine, Ainsley, Callmander, Martin W., Cano, Ángela, Cantrill, David J., Cardinal-McTeague, Warren M., Carlsen, Mónica M., Carruthers, Abigail J. A., de Castro Mateo, Alejandra, Chase, Mark W., Chatrou, Lars W., Cheek, Martin, Chen, Shilin, Christenhusz, Maarten J. M., Christin, Pascal-Antoine, Clements, Mark A., Coffey, Skye C., Conran, John G., Cornejo, Xavier, Couvreur, Thomas L. P., Cowie, Ian D., Csiba, Laszlo, Darbyshire, Iain, Davidse, Gerrit, Davies, Nina M. J., Davis, Aaron P., van Dijk, Kor-jent, Downie, Stephen R., Duretto, Marco F., Duvall, Melvin R., Edwards, Sara L., Eggli, Urs, Erkens, Roy H. J., Escudero, Marcial, de la Estrella, Manuel, Fabriani, Federico, Fay, Michael F., Ferreira, Paola de L., Ficinski, Sarah Z., Fowler, Rachael M., Frisby, Sue, Fu, Lin, Fulcher, Tim, Galbany-Casals, Mercè, Gardner, Elliot M., German, Dmitry A., Giaretta, Augusto, Gibernau, Marc, Gillespie, Lynn J., González, Cynthia C., Goyder, David J., Graham, Sean W., Grall, Aurélie, Green, Laura, Gunn, Bee F., Gutiérrez, Diego G., Hackel, Jan, Haevermans, Thomas, Haigh, Anna, Hall, Jocelyn C., Hall, Tony, Harrison, Melissa J., Hatt, Sebastian A., Hidalgo, Oriane, Hodkinson, Trevor R., Holmes, Gareth D., Hopkins, Helen C. F., Jackson, Christopher J., James, Shelley A., Jobson, Richard W., Kadereit, Gudrun, Kahandawala, Imalka M., Kainulainen, Kent, Kato, Masahiro, Kellogg, Elizabeth A., King, Graham J., Klejevskaja, Beata, Klitgaard, Bente B., Klopper, Ronell R., Knapp, Sandra, Koch, Marcus A., Leebens-Mack, James H., Lens, Frederic, Leon, Christine J., Léveillé-Bourret, Étienne, Lewis, Gwilym P., Li, De-Zhu, Li, Lan, Liede-Schumann, Sigrid, Livshultz, Tatyana, Lorence, David, Lu, Meng, Lu-Irving, Patricia, Luber, Jaquelini, Lucas, Eve J., Luján, Manuel, Lum, Mabel, Macfarlane, Terry D., Magdalena, Carlos, Mansano, Vidal F., Masters, Lizo E., Mayo, Simon J., McColl, Kristina, McDonnell, Angela J., McDougall, Andrew E., McLay, Todd G. B., McPherson, Hannah, Meneses, Rosa I., Merckx, Vincent S. F. T., Michelangeli, Fabián A., Mitchell, John D., Monro, Alexandre K., Moore, Michael J., Mueller, Taryn L., Mummenhoff, Klaus, Munzinger, Jérôme, Muriel, Priscilla, Murphy, Daniel J., Nargar, Katharina, Nauheimer, Lars, Nge, Francis J., Nyffeler, Reto, Orejuela, Andrés, Ortiz, Edgardo M., Palazzesi, Luis, Peixoto, Ariane Luna, Pell, Susan K., Pellicer, Jaume, Penneys, Darin S., Perez-Escobar, Oscar A., Persson, Claes, Pignal, Marc, Pillon, Yohan, Pirani, José R., Plunkett, Gregory M., Powell, Robyn F., Prance, Ghillean T., Puglisi, Carmen, Qin, Ming, Rabeler, Richard K., Rees, Paul E. J., Renner, Matthew, Roalson, Eric H., Rodda, Michele, Rogers, Zachary S., Rokni, Saba, Rutishauser, Rolf, de Salas, Miguel F., Schaefer, Hanno, Schley, Rowan J., Schmidt-Lebuhn, Alexander, Shapcott, Alison, Al-Shehbaz, Ihsan, Shepherd, Kelly A., Simmons, Mark P., Simões, André O., Simões, Ana Rita G., Siros, Michelle, Smidt, Eric C., Smith, James F., Snow, Neil, Soltis, Douglas E., Soltis, Pamela S., Soreng, Robert J., Sothers, Cynthia A., Starr, Julian R., Stevens, Peter F., Straub, Shannon C. K., Struwe, Lena, Taylor, Jennifer M., Telford, Ian R. H., Thornhill, Andrew H., Tooth, Ifeanna, Trias-Blasi, Anna, Udovicic, Frank, Utteridge, Timothy M. A., Del Valle, Jose C., Verboom, G. Anthony, Vonow, Helen P., Vorontsova, Maria S., de Vos, Jurriaan M., Al-Wattar, Noor, Waycott, Michelle, Welker, Cassiano A. D., White, Adam J., Wieringa, Jan J., Williamson, Luis T., Wilson, Trevor C., Wong, Sin Yeng, Woods, Lisa A., Woods, Roseina, Worboys, Stuart, Xanthos, Martin, Yang, Ya, Zhang, Yu-Xiao, Zhou, Meng-Yuan, Zmarzty, Sue, Zuloaga, Fernando O., Antonelli, Alexandre, Bellot, Sidonie, Crayn, Darren M., Grace, Olwen M., Kersey, Paul J., Leitch, Ilia J., Sauquet, Hervé, Smith, Stephen A., Eiserhardt, Wolf L., Forest, Félix, and Baker, William J.

Published
2024
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7. Sierra Nevada, a Mediterranean Biodiversity Super Hotspot

Author

Arroyo, Juan, Abellán, Pedro, Arista, Montserrat, Ariza, María Jesús, de Castro, Alejandra, Escudero, Marcial, Lorite, Juan, Martínez-Borda, Estefanía, Mejías, José Antonio, Molina-Venegas, Rafael, Pleguezuelos, Juan M., Simón-Porcar, Violeta, Viruel, Juan, Zamora, Regino, editor, and Oliva, Marc, editor

Published
2022
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10. Genomic hotspots of chromosome rearrangements explain conserved synteny despite high rates of chromosome evolution in a holocentric lineage.

Author

Escudero, Marcial, Marques, André, Lucek, Kay, and Hipp, Andrew L.

Subjects
*CHROMOSOMAL rearrangement, *CHROMOSOMES, *COMPARATIVE genomics, *KINETOCHORE, *CENTROMERE
Abstract

Holocentric organisms, unlike typical monocentric organisms, have kinetochore activity distributed along almost the whole length of the chromosome. Because of this, chromosome rearrangements through fission and fusion are more likely to become fixed in holocentric species, which may account for the extraordinary rates of chromosome evolution that many holocentric lineages exhibit. Long blocks of genome synteny have been reported in animals with holocentric chromosomes despite high rates of chromosome rearrangements. Nothing is known from plants, however, despite the fact that holocentricity appears to have played a key role in the diversification of one of the largest angiosperm genera, Carex (Cyperaceae). In the current study, we compared genomes of Carex species and a distantly related Cyperaceae species to characterize conserved and rearranged genome regions. Our analyses span divergence times ranging between 2 and 50 million years. We also compared a C. scoparia chromosome‐level genome assembly with a linkage map of the same species to study rearrangements at a population level and suppression of recombination patterns. We found longer genome synteny blocks than expected under a null model of random rearrangement breakpoints, even between very distantly related species. We also found repetitive DNA to be non‐randomly associated with holocentromeres and rearranged regions of the genome. The evidence of conserved synteny in sedges despite high rates of chromosome fission and fusion suggests that conserved genomic hotspots of chromosome evolution related to repetitive DNA shape the evolution of recombination, gene order and crossability in sedges. This finding may help explain why sedges are able to maintain species cohesion even in the face of high interspecific chromosome rearrangements. [ABSTRACT FROM AUTHOR]

Published
2024
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11. The holocentric chromosome microevolution: From phylogeographic patterns to genomic associations with environmental gradients.

Author

Márquez‐Corro, José Ignacio, Martín‐Bravo, Santiago, Blanco‐Pastor, José Luis, Luceño, Modesto, and Escudero, Marcial

Subjects
POPULATION differentiation, CHROMOSOMES, KARYOTYPES, PLANT species, LOCUS (Genetics), PHYLOGEOGRAPHY
Abstract

Geographic isolation and chromosome evolution are two of the major drivers of diversification in eukaryotes in general, and specifically, in plants. On one hand, range shifts induced by Pleistocene glacial oscillations deeply shaped the evolutionary trajectories of species in the Northern Hemisphere. On the other hand, karyotype variability within species or species complexes may have adaptive potential as different karyotypes may represent different recombination rates and linkage groups that may be associated with locally adapted genes or supergenes. Organisms with holocentric chromosomes are ideal to study the link between local adaptation and chromosome evolution, due to their high cytogenetic variability, especially when it seems to be related to environmental variation. Here, we integrate the study of the phylogeography, chromosomal evolution and ecological requirements of a plant species complex distributed in the Western Euro‐Mediterranean region (Carex gr. laevigata, Cyperaceae). We aim to clarify the relative influence of these factors on population differentiation and ultimately on speciation. We obtained a well‐resolved RADseq phylogeny that sheds light on the phylogeographic patterns of molecular and chromosome number variation, which are compatible with south‐to‐north postglacial migration. In addition, landscape genomics analyses identified candidate loci for local adaptation, and also strong significant associations between the karyotype and the environment. We conclude that karyotype distribution in C. gr. laevigata has been constrained by both range shift dynamics and local adaptation. Our study demonstrates that chromosome evolution may be responsible, at least partially, for microevolutionary patterns of population differentiation and adaptation in Carex. [ABSTRACT FROM AUTHOR]

Published
2024
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12. Holocentric repeat landscapes: From micro‐evolutionary patterns to macro‐evolutionary associations with karyotype evolution.

Author

Cornet, Camille, Mora, Pablo, Augustijnen, Hannah, Nguyen, Petr, Escudero, Marcial, and Lucek, Kay

Subjects
REPRODUCTIVE isolation, POPULATION differentiation, CHROMOSOMAL rearrangement, CHROMOSOME segregation, SPECIES diversity, KARYOTYPES, CENTROMERE
Abstract

Repetitive elements can cause large‐scale chromosomal rearrangements, for example through ectopic recombination, potentially promoting reproductive isolation and speciation. Species with holocentric chromosomes, that lack a localized centromere, might be more likely to retain chromosomal rearrangements that lead to karyotype changes such as fusions and fissions. This is because chromosome segregation during cell division should be less affected than in organisms with a localized centromere. The relationships between repetitive elements and chromosomal rearrangements and how they may translate to patterns of speciation in holocentric organisms are though poorly understood. Here, we use a reference‐free approach based on low‐coverage short‐read sequencing data to characterize the repeat landscape of two independently evolved holocentric groups: Erebia butterflies and Carex sedges. We consider both micro‐ and macro‐evolutionary scales to investigate the repeat landscape differentiation between Erebia populations and the association between repeats and karyotype changes in a phylogenetic framework for both Erebia and Carex. At a micro‐evolutionary scale, we found population differentiation in repeat landscape that increases with overall intraspecific genetic differentiation among four Erebia species. At a macro‐evolutionary scale, we found indications for an association between repetitive elements and karyotype changes along both Erebia and Carex phylogenies. Altogether, our results suggest that repetitive elements are associated with the level of population differentiation and chromosomal rearrangements in holocentric clades and therefore likely play a role in adaptation and potentially species diversification. [ABSTRACT FROM AUTHOR]

Published
2024
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15. Cladogenesis

Author

Martín-Bravo, Santiago, primary, Maguilla, Enrique, additional, and Escudero, Marcial, additional

Published
2022
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16. Polyploidy and hybridization in the Mediterranean: unravelling the evolutionary history of Centaurium (Gentianaceae).

Author

Valdés-Florido, Ana, González-Toral, Claudia, Maguilla, Enrique, Cires, Eduardo, Díaz-Lifante, Zoila, Andrés-Camacho, Cristina, Feliner, Gonzalo Nieto, Arroyo, Juan, and Escudero, Marcial

Subjects
POLYPLOIDY, PLANT hybridization, PLANT evolution, GENTIANACEAE, PLANT species, PLOIDY
Abstract

Background and Aims Polyploidy is considered one of the main mechanisms of plant evolution and speciation. In the Mediterranean Basin, polyploidy has contributed to making this region a biodiversity hotspot, along with its geological and climatic history and other ecological and biogeographical factors. The Mediterranean genus Centaurium (Gentianaceae) comprises ~25 species, of which 60 % are polyploids, including tetraploids and hexaploids. To date, the evolutionary history of centauries has been studied using Sanger sequencing phylogenies, which have been insufficient to fully understand the phylogenetic relationships in this lineage. The goal of this study is to gain a better understanding of the evolutionary history of Centaurium by exploring the mechanisms that have driven its diversification, specifically hybridization and polyploidy. We aim to identify the parentage of hybrid species, at the species or clade level, as well as assessing whether morphological traits are associated with particular ploidy levels. Methods We sequenced RADseq markers from 42 samples of 28 Centaurium taxa, and performed phylogenomic analyses using maximum likelihood, summary coalescent SVDquartets and Neighbor-Net approaches. To identify hybrid taxa, we used PhyloNetworks and the fastSTRUCTURE algorithm. To infer the putative parental species of the allopolyploids, we employed genomic analyses (SNIPloid). The association between different traits and particular ploidy levels was explored with non-metric multidimensional scaling. Key Results Our phylogenetic analyses confirmed the long-suspected occurrence of recurrent hybridization. The allopolyploid origin of the tetraploid C. serpentinicola and the hexaploids C. mairei , C. malzacianum and C. centaurioides was also confirmed, unlike that of C. discolor. We inferred additional signatures of hybridization events within the genus and identified morphological traits differentially distributed in different ploidy levels. Conclusions This study highlights the important role that hybridization has played in the evolution of a Mediterranean genus such as Centaurium , leading to a polyploid complex, which facilitated its diversification and may exemplify that of other Mediterranean groups. [ABSTRACT FROM AUTHOR]

Published
2024
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18. Author Correction: WOODIV, a database of occurrences, functional traits, and phylogenetic data for all Euro-Mediterranean trees

Author

Monnet, Anne-Christine, Cilleros, Kévin, Médail, Frédéric, Albassatneh, Marwan Cheikh, Arroyo, Juan, Bacchetta, Gianluigi, Bagnoli, Francesca, Barina, Zoltán, Cartereau, Manuel, Casajus, Nicolas, Dimopoulos, Panayotis, Domina, Gianniantonio, Doxa, Aggeliki, Escudero, Marcial, Fady, Bruno, Hampe, Arndt, Matevski, Vlado, Misfud, Stephen, Nikolic, Toni, Pavon, Daniel, Roig, Anne, Barea, Estefania Santos, Spanu, Ilaria, Strid, Arne, Vendramin, Giovanni Giuseppe, and Leriche, Agathe

Published
2021
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19. WOODIV, a database of occurrences, functional traits, and phylogenetic data for all Euro-Mediterranean trees

Author

Monnet, Anne-Christine, Cilleros, Kévin, Médail, Frédéric, Albassatneh, Marwan Cheikh, Arroyo, Juan, Bacchetta, Gianluigi, Bagnoli, Francesca, Barina, Zoltán, Cartereau, Manuel, Casajus, Nicolas, Dimopoulos, Panayotis, Domina, Gianniantonio, Doxa, Aggeliki, Escudero, Marcial, Fady, Bruno, Hampe, Arndt, Matevski, Vlado, Misfud, Stephen, Nikolic, Toni, Pavon, Daniel, Roig, Anne, Barea, Estefania Santos, Spanu, Ilaria, Strid, Arne, Vendramin, Giovanni Giuseppe, and Leriche, Agathe

Published
2021
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21. Founder events and subsequent genetic bottlenecks underlie karyotype evolution in the Ibero-North African endemic Carex helodes.

Author

Escudero, Marcial, Arroyo, Juan Miguel, Sánchez-Ramírez, Santiago, and Jordano, Pedro

Subjects
*KARYOTYPES, *GENETIC drift, *CAREX, *COLONIZATION (Ecology), *CHROMOSOMAL rearrangement, *CYPERUS
Abstract

Background and Aims Despite chromosomal evolution being one of the major drivers of diversification in plants, we do not yet have a clear view of how new chromosome rearrangements become fixed within populations, which is a crucial step forward for understanding chromosomal speciation. Methods In this study, we test the role of genetic drift in the establishment of new chromosomal variants in the context of hybrid dysfunction models of chromosomal speciation. We genotyped 178 individuals from seven populations (plus 25 seeds from one population) across the geographical range of Carex helodes (Cyperaceae). We also characterized karyotype geographical patterns of the species across its distribution range. For one of the populations, we performed a detailed study of the fine-scale, local spatial distribution of its individuals and their genotypes and karyotypes. Key Results Synergistically, phylogeographical and karyotypic evidence revealed two main genetic groups: southwestern Iberian Peninsula vs. northwestern African populations; and within Europe our results suggest a west-to-east expansion with signals of genetic bottlenecks. Additionally, we inferred a pattern of descending dysploidy, plausibly as a result of a west-to-east process of post-glacial colonization in Europe. Conclusions Our results give experimental support to the role of geographical isolation, drift and inbreeding in the establishment of new karyotypes, which is key in the speciation models of hybrid dysfunction. [ABSTRACT FROM AUTHOR]

Published
2024
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22. Global analysis of Poales diversification – parallel evolution in space and time into open and closed habitats

Author

Elliott, Tammy L., primary, Spalink, Daniel, additional, Larridon, Isabel, additional, Zuntini, Alexandre Rizzo, additional, Escudero, Marcial, additional, Hackel, Jan, additional, Barrett, Russell L., additional, Martín‐Bravo, Santiago, additional, Márquez‐Corro, José Ignacio, additional, Granados Mendoza, Carolina, additional, Mashau, Aluoneswi C., additional, Romero‐Soler, Katya J., additional, Zhigila, Daniel A., additional, Gehrke, Berit, additional, Andrino, Caroline Oliveira, additional, Crayn, Darren M., additional, Vorontsova, Maria S., additional, Forest, Félix, additional, Baker, William J., additional, Wilson, Karen L., additional, Simpson, David A., additional, and Muasya, A. Muthama, additional

Published
2023
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28. Global analysis of Poales diversification - parallel evolution in space and time into open and closed habitats

Author

Elliott, Tammy L, primary, Spalink, Daniel, additional, Larridon, Isabel, additional, Zuntini, Alexandre Rizzo, additional, Escudero, Marcial, additional, Hackel, Jan, additional, Barrett, Russell L, additional, Martin-Bravo, Santiago, additional, Marquez-Corro, Jose Ignacio, additional, Mendoza, Carolina Granados, additional, Mashau, Aluoneswi C., additional, Romero-Soler, Katya J, additional, Zhigila, Daniel A., additional, Gehrke, Berit, additional, Andrino, Caroline Oliveira, additional, Crayn, Darren M, additional, Vorontsova, Maria S, additional, Forest, Felix, additional, Baker, William John, additional, Wilson, Karen L, additional, Simpson, David A, additional, and Muasya, A. Muthama, additional

Published
2023
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31. Global analysis of Poales diversification – parallel evolution in space and time into open and closed habitats.

Author

Elliott, Tammy L., Spalink, Daniel, Larridon, Isabel, Zuntini, Alexandre Rizzo, Escudero, Marcial, Hackel, Jan, Barrett, Russell L., Martín‐Bravo, Santiago, Márquez‐Corro, José Ignacio, Granados Mendoza, Carolina, Mashau, Aluoneswi C., Romero‐Soler, Katya J., Zhigila, Daniel A., Gehrke, Berit, Andrino, Caroline Oliveira, Crayn, Darren M., Vorontsova, Maria S., Forest, Félix, Baker, William J., and Wilson, Karen L.

Subjects
HABITATS, OPEN spaces, BIOGEOGRAPHY, DATABASES, CYPERUS
Abstract

Summary: Poales are one of the most species‐rich, ecologically and economically important orders of plants and often characterise open habitats, enabled by unique suites of traits. We test six hypotheses regarding the evolution and assembly of Poales in open and closed habitats throughout the world, and examine whether diversification patterns demonstrate parallel evolution.We sampled 42% of Poales species and obtained taxonomic and biogeographic data from the World Checklist of Vascular Plants database, which was combined with open/closed habitat data scored by taxonomic experts. A dated supertree of Poales was constructed. We integrated spatial phylogenetics with regionalisation analyses, historical biogeography and ancestral state estimations.Diversification in Poales and assembly of open and closed habitats result from dynamic evolutionary processes that vary across lineages, time and space, most prominently in tropical and southern latitudes. Our results reveal parallel and recurrent patterns of habitat and trait transitions in the species‐rich families Poaceae and Cyperaceae. Smaller families display unique and often divergent evolutionary trajectories.The Poales have achieved global dominance via parallel evolution in open habitats, with notable, spatially and phylogenetically restricted divergences into strictly closed habitats. [ABSTRACT FROM AUTHOR]

Published
2024
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35. Specimens at the Center: An Informatics Workflow and Toolkit for Specimen-level analysis of Public DNA database data

Author

Pham, Kasey K., Hahn, Marlene, Lueders, Kate, Brown, Bethany H., Bruederle, Leo P., Bruhl, Jeremy J., Chung, Kyong-Sook, Derieg, Nathan J., Escudero, Marcial, Ford, Bruce A., Gebauer, Sebastian, Gehrke, Berit, Hoffmann, Matthias H., Hoshino, Takuji, Jiménez-Mejías, Pedro, Jung, Jongduk, Kim, Sangtae, Luceño, Modesto, Maguilla, Enrique, Martín-Bravo, Santiago, Naczi, Robert F. C., Naczi, Rob F. C., Reznicek, Anton A., Roalson, Eric H., Simpson, David A., Starr, Julian R., Villaverde, Tamara, Waterway, Marcia J., Wilson, Karen L., Yano, Okihito, Zhang, Shuren, and Hipp, Andrew L.

Published
2016

36. Megaphylogenetic Specimen-level Approaches to the Carex (Cyperaceae) Phylogeny Using ITS, ETS, and matK Sequences: Implications for Classification

Author

Jiménez-Mejías, Pedro, Hahn, Marlene, Lueders, Kate, Starr, Julian R., Brown, Bethany H., Chouinard, Brianna N., Chung, Kyong-Sook, Escudero, Marcial, Ford, Bruce A., Ford, Kerry A., Gebauer, Sebastian, Gehrke, Berit, Hoffmann, Matthias H., Jin, Xiao-Feng, Jung, Jongduk, Kim, Sangtae, Luceño, Modesto, Maguilla, Enrique, Martín-Bravo, Santiago, Míguez, Mónica, Molina, Ana, Naczi, Robert F. C., Pender, Jocelyn E., Reznicek, Anton A., Villaverde, Tamara, Waterway, Marcia J., Wilson, Karen L., Yang, Jong-Cheol, Zhang, Shuren, Hipp, Andrew. L., and Roalson, Eric H.

Published
2016

38. Carex camposii subsp. tejedensis (Cyperaceae), a new taxon for Southern Iberian Peninsula based on molecular, morphological and ecological differentiation.

Author

Sánchez-Villegas, Rogelio, Escudero, Marcial, Martín-Bravo, Santiago, Salazar-Mendías, Carlos, Algarra, Jose A., Luceño, Modesto, Sánchez-Villegas, Rogelio, Escudero, Marcial, Martín-Bravo, Santiago, Salazar-Mendías, Carlos, Algarra, Jose A., and Luceño, Modesto

Abstract

Carex camposii Boiss. & Reut., endemic to high mountain ranges in Southern Iberian Peninsula (Sierra Nevada, Sierra de los Filabres and Sierra de Baza), is a morphologically and molecularly well-defined species included in Carex gr. laevigata (subg. Carex, sect. Spirostachyae). We have discovered a population of a morphologically similar species to C. camposii in a different mountain range (Sierra de Tejeda), that displayed some deviant morphological characters and was found in a different habitat from that typical of the species. In order to disentangle the taxonomic status of this population, we have conducted a phylogenetic analysis using five nuclear (ITS, ETS, G3PDH, CATP and GZF) and three plastid (matK, rpS16 and 5’trnK intron) DNA regions. In addition, a morphological analysis including the population from Sierra de Tejeda was carried out. The resulting phylogenetic trees show that the samples of the problematic population are closely related to C. camposii, while the morphological study revealed that a total of nine morphological features did not match those of typical C. camposii. Even though the samples from Sierra de Tejeda are genetically not well differentiated from C. camposii, the morphological and ecological differentiation supports its recognition as a new subspecies, C. camposii subsp. tejedensis. An assessment of its conservation status using IUCN categories and criteria suggests that it could be critically endangered (CR).

Published
2023

41. Addressing inconsistencies in Cyperaceae and Juncaceae taxonomy: Comment on Brožová et al. (2022)

Author

Elliott, Tammy L., primary, Larridon, Isabel, additional, Barrett, Russell L., additional, Bruhl, Jeremy J., additional, Costa, Suzana M., additional, Escudero, Marcial, additional, Hipp, Andrew L., additional, Jiménez‐Mejías, Pedro, additional, Kirschner, Jan, additional, Luceño, Modesto, additional, Ignacio Márquez-Corro, José, additional, Martín-Bravo, Santiago, additional, Roalson, Eric H., additional, Semmouri, Ilias, additional, Spalink, Daniel, additional, Wayt Thomas, William, additional, Villaverde, Tamara, additional, Wilson, Karen L., additional, and Muthama Muasya, A., additional

Published
2023
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49. Chromosome size matters: genome evolution in the cyperid clade

Author

Elliott, Tammy L, primary, Zedek, František, additional, Barrett, Russell L, additional, Bruhl, Jeremy J, additional, Escudero, Marcial, additional, Hroudová, Zdenka, additional, Joly, Simon, additional, Larridon, Isabel, additional, Luceño, Modesto, additional, Márquez-Corro, José Ignacio, additional, Martín-Bravo, Santiago, additional, Muasya, A Muthama, additional, Šmarda, Petr, additional, Thomas, William Wayt, additional, Wilson, Karen L, additional, and Bureš, Petr, additional

Published
2022
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