Sex-chromosome evolution in frogs: What role for sex-antagonistic genes?

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Serval ID
serval:BIB_B68CC747227D
Type
Article: article from journal or magazin.
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Publications
Institution
Title
Sex-chromosome evolution in frogs: What role for sex-antagonistic genes?
Journal
Philosophical Transactions of the Royal Society B
Author(s)
Perrin N
Publication state
In Press
Language
english
Abstract
Sex-antagonistic (SA) genes are widely considered to be crucial players in the evolution of sex chromosomes, being instrumental in the arrest of recombination and degeneration of Y chromosomes, as well as important drivers of sex-chromosome turnovers. To test such claims, one needs to focus on systems at early stages of differentiation, ideally with a high turnover rate. Here I review recent work on two families of amphibians, Ranidae (true frogs) and Hylidae (tree frogs), to show that results gathered so far from these groups provide no support for a significant role of SA genes in the evolutionary dynamics of their sex chromosomes. The findings support instead a central role for neutral processes and deleterious mutations.
Keywords
Amphibians, sex determination, sexual dimorphism, sex reversal.
Create date
08/07/2020 12:16
Last modification date
01/08/2020 6:19
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