Document type
Journal articles
Document subtype
Full paper
Title
Mate Choice Drives Evolutionary Stability in a Hybrid Complex
Participants in the publication
Miguel Morgado-Santos (Author)
FACULDADE DE CIÊNCIAS DA UNIVERSIDADE DE LISBOA
Henrique Miguel Pereira (Author)
FACULDADE DE CIÊNCIAS DA UNIVERSIDADE DE LISBOA
Luís Vicente (Author)
CESAM
CFCUL
Maria João Collares-Pereira (Author)
Dep. Biologia Animal
cE3c
Summary
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.
Date of Publication
2015-07-16
Institution
FACULDADE DE CIÊNCIAS DA UNIVERSIDADE DE LISBOA
Where published
PLOS ONE
Publication Identifiers
ISSN - 1932-6203
Publisher
Public Library of Science (PLoS)
Document Identifiers
URL -
http://dx.doi.org/10.1371/journal.pone.0132760
DOI -
https://doi.org/10.1371/journal.pone.0132760
Rankings
Web Of Science Q1 (2015) - 3.057 - Multidisciplinary Sciences
SCIMAGO Q1 (2015) - 1.427 - Agricultural and Biological Sciences (miscellaneous)
SCIMAGO Q1 (2015) - 1.427 - Biochemistry, Genetics and Molecular Biology (miscellaneous)
SCIMAGO Q1 (2015) - 1.427 - Medicine (miscellaneous)