The rise and fall of the ancient northern pike master sex-determining gene

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DOI Доступ к ресурсу на сайте издателя			10.7554/eLife.62858

Title: The rise and fall of the ancient northern pike master sex-determining gene
Creator: Pan, Qiaowei
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Feron, Romain
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Jouanno, Elodie
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Darras, Hugo
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Herpin, Amaury
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Koop, Ben
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Rondeau, Eric
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Goetz, Frederick W.
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Larson, Wesley A.
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Bernatchez, Louis
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Tringali, Mike
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Curran, Stephen S.
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Saillant, Eric
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Denys, Gael P. J.
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Hippel, Frank A. von
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Interesova, Elena A.
Date: 2021
DOI: 10.7554/eLife.62858
Description: The understanding of the evolution of variable sex determination mechanisms across taxa requires comparative studies among closely related species. Following the fate of a known master sex-determining gene, we traced the evolution of sex determination in an entire teleost order (Esociformes). We discovered that the northern pike (Esox lucius) master sex-determining gene originated from a 65 to 90 million-year-old gene duplication event and that it remained sex linked on undifferentiated sex chromosomes for at least 56 million years in multiple species. We identified several independent species- or population-specific sex determination transitions, including a recent loss of a Y chromosome. These findings highlight the diversity of evolutionary fates of master sex-determining genes and the importance of population demographic history in sex determination studies. We hypothesize that occasional sex reversals and genetic bottlenecks provide a non-adaptive explanation for sex determination transitions.

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collection(s): Институт биологии, экологии, почвоведения, сельского и лесного хозяйства (Биологический институт)
Identifier: смотреть в электронном каталоге НБ ТГУ
Type: статьи в журналах
Source: eLife. 2021. Vol. 10. P. e62858 (1-30)
Language: eng

Created: 14-06-2022

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