Evolution of multiple postzygotic barriers between species of the Mimulus tilingii complex
© 2020 The Authors. Evolution © 2020 The Society for the Study of Evolution..
Species are often defined by their ability to interbreed (i.e., Biological Species Concept), but determining how and why reproductive isolation arises between new species can be challenging. In the Mimulus tilingii species complex, three species (M. caespitosa, M. minor, and M. tilingii) are largely allopatric and grow exclusively at high elevations (>2000 m). The extent to which geographic separation has shaped patterns of divergence among the species is not well understood. In this study, we determined that the three species are morphologically and genetically distinct, yet recently diverged. Additionally, we performed reciprocal crosses within and between the species and identified several strong postzygotic reproductive barriers, including hybrid seed inviability, F1 hybrid necrosis, and F1 hybrid male and female sterility. In this study, such postzygotic barriers are so strong that a cross between any species pair in the M. tilingii complex would cause nearly complete reproductive isolation. We consider how geographical and topographical patterns may have facilitated the evolution of several postzygotic barriers and contributed to speciation of closely related members within the M. tilingii species complex.
| Errataetall: |
CommentIn: Evolution. 2021 Mar;75(3):756-758. - PMID 33469918 |
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| Medienart: |
E-Artikel |
| Erscheinungsjahr: |
2021 |
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| Erschienen: |
2021 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:75 |
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| Enthalten in: |
Evolution; international journal of organic evolution - 75(2021), 3 vom: 23. März, Seite 600-613 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Sandstedt, Gabrielle D [VerfasserIn] |
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| Links: |
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| Themen: |
Allopatric |
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| Anmerkungen: |
Date Completed 20.10.2021 Date Revised 31.03.2024 published: Print-Electronic Dryad: 10.5061/dryad.8kprr4xm2 CommentIn: Evolution. 2021 Mar;75(3):756-758. - PMID 33469918 Citation Status MEDLINE |
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| doi: |
10.1111/evo.14105 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM316138177 |
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| 500 | |a Dryad: 10.5061/dryad.8kprr4xm2 | ||
| 500 | |a CommentIn: Evolution. 2021 Mar;75(3):756-758. - PMID 33469918 | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a © 2020 The Authors. Evolution © 2020 The Society for the Study of Evolution. | ||
| 520 | |a Species are often defined by their ability to interbreed (i.e., Biological Species Concept), but determining how and why reproductive isolation arises between new species can be challenging. In the Mimulus tilingii species complex, three species (M. caespitosa, M. minor, and M. tilingii) are largely allopatric and grow exclusively at high elevations (>2000 m). The extent to which geographic separation has shaped patterns of divergence among the species is not well understood. In this study, we determined that the three species are morphologically and genetically distinct, yet recently diverged. Additionally, we performed reciprocal crosses within and between the species and identified several strong postzygotic reproductive barriers, including hybrid seed inviability, F1 hybrid necrosis, and F1 hybrid male and female sterility. In this study, such postzygotic barriers are so strong that a cross between any species pair in the M. tilingii complex would cause nearly complete reproductive isolation. We consider how geographical and topographical patterns may have facilitated the evolution of several postzygotic barriers and contributed to speciation of closely related members within the M. tilingii species complex | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Research Support, N.I.H., Extramural | |
| 650 | 4 | |a Research Support, Non-U.S. Gov't | |
| 650 | 4 | |a Research Support, U.S. Gov't, Non-P.H.S. | |
| 650 | 4 | |a Allopatric | |
| 650 | 4 | |a Mimulus | |
| 650 | 4 | |a reproductive isolation | |
| 650 | 4 | |a speciation | |
| 700 | 1 | |a Wu, Carrie A |e verfasserin |4 aut | |
| 700 | 1 | |a Sweigart, Andrea L |e verfasserin |4 aut | |
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