The rise and fall of the ancient northern pike master sex-determining gene
Supporting Files
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2021
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Source eLife, 10
Details
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Journal Title:eLife
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Personal Author: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 PJ
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von Hippel, Frank A
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Chen, Songlin
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López, J Andrés
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Verreycken, Hugo
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Ocalewicz, Konrad
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Guyomard, Rene
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Eche, Camille
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Lluch, Jerome
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Roques, Celine
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Hu, Hongxia
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Tabor, Roger
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DeHaan, Patrick
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Nichols, Krista M
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Journot, Laurent
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Parrinello, Hugues
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Klopp, Christophe
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Interesova, Elena A
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Trifonov, Vladimir
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Schartl, Manfred
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Postlethwait, John
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Guiguen, Yann
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NOAA Program & Office:
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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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Keywords:
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Source:eLife, 10
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DOI:
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ISSN:2050-084X
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Format:
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License:
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Rights Information:CC BY
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Compliance:Library
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Download URL:
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Main Document Checksum:urn:sha256:e1db7d7b41a8a571b62c56d04ee9c4b98955751b90dd9e3892105bc2b96652e7
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