Optimality Versus Opportunity: The Recurrent Evolution of Similar Sex Determination Mechanisms

Abstract Sex determination mechanisms vary widely across animals, but show remarkable degrees of recurrent evolution. Recurrent features of sex determination have largely been attributed to recurrent cooption of shared ancestral regulatory circuits. However, a new study on sex determination in Daphn...

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Bibliographic Details
Published in:The Journal of heredity 2022-07, Vol.113 (3), p.235-237
Main Author: Roy, Scott William
Format: Article
Language:English
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Summary:Abstract Sex determination mechanisms vary widely across animals, but show remarkable degrees of recurrent evolution. Recurrent features of sex determination have largely been attributed to recurrent cooption of shared ancestral regulatory circuits. However, a new study on sex determination in Daphnia magna reveals both recurrent evolution of specific regulatory logic and apparently recurrent recruitment of a regulator, suggesting a role for optimization in recurrent patterns of sex determination mechanisms.
ISSN:0022-1503
1465-7333
DOI:10.1093/jhered/esac001