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Data from: Macroevolutionary synthesis of flowering plant sexual systems Goldberg, Emma E.; Otto, Sarah P.; Vamosi, Jana C.; Mayrose, Itay; Sabath, Niv; Ming, Ray; Ashman, Tia-Lynn
Description
<b>Abstract</b><br/>Sexual system is a key determinant of genetic variation and reproductive success, affecting evolution within populations and within clades. Much research in plants has focused on evolutionary transitions away from the most common state of hermaphroditism and toward the rare state of dioecy (separate sexes). Rather than transitions predominantly toward greater sexual differentiation, however, evolution may proceed in the direction of lesser sexual differentiation. We analyzed the macroevolutionary dynamics of sexual system in angiosperm genera that contain both dioecious and non-dioecious species. Our phylogenetic analyses encompass a total of 2145 species from 40 genera. Overall, we found little evidence that rates of sexual system transitions are greater in any direction. Counting the number of inferred state changes revealed a mild prevalence of transitions away from hermaphroditism and away from dioecy, toward states of intermediate sexual differentiation. We identify genera in which future studies of sexual system evolution might be especially productive, and we discuss how integrating genetic or population-level studies of sexual system could improve the power of phylogenetic comparative analyses. Our work adds to the evidence that different selective pressures and constraints act in different groups, helping maintain the variety of sexual systems observed among plants.; <b>Usage notes</b><br /><div class="o-metadata__file-usage-entry"><h4 class="o-heading__level3-file-title">Data and analyses</h4><div class="o-metadata__file-description">Phylogenetic trees. Sexual system tip states. Scripts to fit macroevolutionary models. Scripts to generate figures. Other visual summaries of data and results.</div><div class="o-metadata__file-name">DioecyDataAnalyses.tar.gz</br></div></div>
Item Metadata
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Data from: Macroevolutionary synthesis of flowering plant sexual systems
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| Creator | |
| Date Issued |
2021-05-19
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| Description |
<b>Abstract</b><br/>Sexual system is a key determinant of genetic variation and reproductive success, affecting evolution within populations and within clades. Much research in plants has focused on evolutionary transitions away from the most common state of hermaphroditism and toward the rare state of dioecy (separate sexes). Rather than transitions predominantly toward greater sexual differentiation, however, evolution may proceed in the direction of lesser sexual differentiation. We analyzed the macroevolutionary dynamics of sexual system in angiosperm genera that contain both dioecious and non-dioecious species. Our phylogenetic analyses encompass a total of 2145 species from 40 genera. Overall, we found little evidence that rates of sexual system transitions are greater in any direction. Counting the number of inferred state changes revealed a mild prevalence of transitions away from hermaphroditism and away from dioecy, toward states of intermediate sexual differentiation. We identify genera in which future studies of sexual system evolution might be especially productive, and we discuss how integrating genetic or population-level studies of sexual system could improve the power of phylogenetic comparative analyses. Our work adds to the evidence that different selective pressures and constraints act in different groups, helping maintain the variety of sexual systems observed among plants.; <b>Usage notes</b><br /><div class="o-metadata__file-usage-entry"><h4 class="o-heading__level3-file-title">Data and analyses</h4><div class="o-metadata__file-description">Phylogenetic trees. Sexual system tip states. Scripts to fit macroevolutionary models. Scripts to generate figures. Other visual summaries of data and results.</div><div class="o-metadata__file-name">DioecyDataAnalyses.tar.gz</br></div></div>
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| Notes |
Dryad version number: 1</p> Version status: submitted</p> Dryad curation status: Published</p> Sharing link: https://datadryad.org/stash/share/gepdcs59atcxpxpl3cShQxltrQEEx4ZZcnCmaU5VNyo</p> Storage size: 31060758</p> Visibility: public</p> |
| Date Available |
2020-06-24
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| Provider |
University of British Columbia Library
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| License |
CC0 1.0
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| DOI |
10.14288/1.0397987
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| URI | |
| Publisher DOI | |
| Grant Funding Agency |
National Science Foundation
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| Rights URI | |
| Aggregated Source Repository |
Dataverse
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CC0 1.0