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

文献类型： 外文期刊

第一作者： Pan, Qiaowei

作者： Pan, Qiaowei;Feron, Romain;Jouanno, Elodie;Herpin, Amaury;Guiguen, Yann;Pan, Qiaowei;Feron, Romain;Darras, Hugo;Feron, Romain;Koop, Ben;Rondeau, Eric;Goetz, Frederick W.;Larson, Wesley A.;Bernatchez, Louis;Tringali, Mike;Curran, Stephen S.;Saillant, Eric;Denys, Gael P. J.;Denys, Gael P. J.;von Hippel, Frank A.;Chen, Songlin;Lopez, J. Andres;Verreycken, Hugo;Ocalewicz, Konrad;Guyomard, Rene;Eche, Camille;Lluch, Jerome;Roques, Celine;Hu, Hongxia;Hu, Hongxia;Tabor, Roger;DeHaan, Patrick;Nichols, Krista M.;Journot, Laurent;Parrinello, Hugues;Klopp, Christophe;Interesova, Elena A.;Trifonov, Vladimir;Schartl, Manfred;Schartl, Manfred;Postlethwait, John

作者机构：

期刊名称：ELIFE （ 影响因子：8.14； 五年影响因子：9.056 ）

ISSN： 2050-084X

年卷期： 2021 年 10 卷

页码：

收录情况： SCI

摘要： 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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