What is reproductive isolation?
adaptation
genomics
natural selection
population genetics
speciation
theory
Journal
Journal of evolutionary biology
ISSN: 1420-9101
Titre abrégé: J Evol Biol
Pays: Switzerland
ID NLM: 8809954
Informations de publication
Date de publication:
09 2022
09 2022
Historique:
revised:
18
02
2022
received:
29
10
2021
accepted:
23
02
2022
entrez:
5
9
2022
pubmed:
6
9
2022
medline:
9
9
2022
Statut:
ppublish
Résumé
Reproductive isolation (RI) is a core concept in evolutionary biology. It has been the central focus of speciation research since the modern synthesis and is the basis by which biological species are defined. Despite this, the term is used in seemingly different ways, and attempts to quantify RI have used very different approaches. After showing that the field lacks a clear definition of the term, we attempt to clarify key issues, including what RI is, how it can be quantified in principle, and how it can be measured in practice. Following other definitions with a genetic focus, we propose that RI is a quantitative measure of the effect that genetic differences between populations have on gene flow. Specifically, RI compares the flow of neutral alleles in the presence of these genetic differences to the flow without any such differences. RI is thus greater than zero when genetic differences between populations reduce the flow of neutral alleles between populations. We show how RI can be quantified in a range of scenarios. A key conclusion is that RI depends strongly on circumstances-including the spatial, temporal and genomic context-making it difficult to compare across systems. After reviewing methods for estimating RI from data, we conclude that it is difficult to measure in practice. We discuss our findings in light of the goals of speciation research and encourage the use of methods for estimating RI that integrate organismal and genetic approaches.
Identifiants
pubmed: 36063156
doi: 10.1111/jeb.14005
pmc: PMC9542822
doi:
Types de publication
Journal Article
Review
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
1143-1164Subventions
Organisme : Austrian Science Fund
ID : P 32166
Commentaires et corrections
Type : CommentIn
Type : CommentIn
Type : CommentIn
Type : CommentIn
Type : CommentIn
Type : CommentIn
Type : CommentIn
Informations de copyright
© 2022 The Authors. Journal of Evolutionary Biology published by John Wiley & Sons Ltd on behalf of European Society for Evolutionary Biology.
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