Mate choice drives evolutionary stability in a hybrid complex

Detalhes bibliográficos
Autor(a) principal: Morgado-Santos, Miguel
Data de Publicação: 2015
Outros Autores: Pereira, Henrique Miguel, Vicente, Luís, Collares-Pereira, Maria João
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10773/17577
Resumo: Previous studies have shown that assortative mating acts as a driver of speciation by countering hybridization between two populations of the same species (pre-zygotic isolation) or through mate choice among the hybrids (hybrid speciation). In both speciation types, assortative mating promotes speciation over a transient hybridization stage. We studied mate choice in a hybrid vertebrate complex, the allopolyploid fish Squalius alburnoides. This complex is composed by several genomotypes connected by an intricate reproductive dynamics. We developed a model that predicts the hybrid complex can persist when females exhibit particular mate choice patterns. Our model is able to reproduce the diversity of population dynamic outcomes found in nature, namely the dominance of the triploids and the dominance of the tetraploids, depending on female mate choice patterns and frequency of the parental species. Experimental mate choice trials showed that females exhibit the preferences predicted by the model. Thus, despite the known role of assortative mating in driving speciation, our findings suggest that certain mate choice patterns can instead hinder speciation and support the persistence of hybrids over time without speciation or extinction.
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spelling Mate choice drives evolutionary stability in a hybrid complexPrevious studies have shown that assortative mating acts as a driver of speciation by countering hybridization between two populations of the same species (pre-zygotic isolation) or through mate choice among the hybrids (hybrid speciation). In both speciation types, assortative mating promotes speciation over a transient hybridization stage. We studied mate choice in a hybrid vertebrate complex, the allopolyploid fish Squalius alburnoides. This complex is composed by several genomotypes connected by an intricate reproductive dynamics. We developed a model that predicts the hybrid complex can persist when females exhibit particular mate choice patterns. Our model is able to reproduce the diversity of population dynamic outcomes found in nature, namely the dominance of the triploids and the dominance of the tetraploids, depending on female mate choice patterns and frequency of the parental species. Experimental mate choice trials showed that females exhibit the preferences predicted by the model. Thus, despite the known role of assortative mating in driving speciation, our findings suggest that certain mate choice patterns can instead hinder speciation and support the persistence of hybrids over time without speciation or extinction.Public Library of Science2017-05-25T15:15:29Z2015-01-01T00:00:00Z2015info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10773/17577eng1932-620310.1371/journal.pone.0132760Morgado-Santos, MiguelPereira, Henrique MiguelVicente, LuísCollares-Pereira, Maria Joãoinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-02-22T11:31:40Zoai:ria.ua.pt:10773/17577Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T02:51:57.482797Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Mate choice drives evolutionary stability in a hybrid complex
title Mate choice drives evolutionary stability in a hybrid complex
spellingShingle Mate choice drives evolutionary stability in a hybrid complex
Morgado-Santos, Miguel
title_short Mate choice drives evolutionary stability in a hybrid complex
title_full Mate choice drives evolutionary stability in a hybrid complex
title_fullStr Mate choice drives evolutionary stability in a hybrid complex
title_full_unstemmed Mate choice drives evolutionary stability in a hybrid complex
title_sort Mate choice drives evolutionary stability in a hybrid complex
author Morgado-Santos, Miguel
author_facet Morgado-Santos, Miguel
Pereira, Henrique Miguel
Vicente, Luís
Collares-Pereira, Maria João
author_role author
author2 Pereira, Henrique Miguel
Vicente, Luís
Collares-Pereira, Maria João
author2_role author
author
author
dc.contributor.author.fl_str_mv Morgado-Santos, Miguel
Pereira, Henrique Miguel
Vicente, Luís
Collares-Pereira, Maria João
description Previous studies have shown that assortative mating acts as a driver of speciation by countering hybridization between two populations of the same species (pre-zygotic isolation) or through mate choice among the hybrids (hybrid speciation). In both speciation types, assortative mating promotes speciation over a transient hybridization stage. We studied mate choice in a hybrid vertebrate complex, the allopolyploid fish Squalius alburnoides. This complex is composed by several genomotypes connected by an intricate reproductive dynamics. We developed a model that predicts the hybrid complex can persist when females exhibit particular mate choice patterns. Our model is able to reproduce the diversity of population dynamic outcomes found in nature, namely the dominance of the triploids and the dominance of the tetraploids, depending on female mate choice patterns and frequency of the parental species. Experimental mate choice trials showed that females exhibit the preferences predicted by the model. Thus, despite the known role of assortative mating in driving speciation, our findings suggest that certain mate choice patterns can instead hinder speciation and support the persistence of hybrids over time without speciation or extinction.
publishDate 2015
dc.date.none.fl_str_mv 2015-01-01T00:00:00Z
2015
2017-05-25T15:15:29Z
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dc.relation.none.fl_str_mv 1932-6203
10.1371/journal.pone.0132760
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publisher.none.fl_str_mv Public Library of Science
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