A Polygenic Hypothesis for Sex Determination in the European Sea Bass Dicentrarchus labrax
Polygenic sex determination, although suspected in several species, is thought to be evolutionarily unstable and has been proven in very few cases. In the European sea bass, temperature is known to influence the sex ratio. We set up a factorial mating, producing 5.893 individuals from 253 full-sib f...
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| Veröffentlicht in: | Genetics (Austin) 2007-06, Vol.176 (2), p.1049-1057 |
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| creator | Vandeputte, Marc Dupont-Nivet, Mathilde Chavanne, Herve Chatain, Beatrice |
| description | Polygenic sex determination, although suspected in several species, is thought to be evolutionarily unstable and has been proven in very few cases. In the European sea bass, temperature is known to influence the sex ratio. We set up a factorial mating, producing 5.893 individuals from 253 full-sib families, all reared in a single batch to avoid any between-families environmental effects. The proportion of females in the offspring was 18.3%, with a large variation between families. Interpreting sex as a threshold trait, the heritability estimate was 0.62 +/- 0.12. The observed distribution of family sex ratios was in accordance with a polygenic model or with a four-sex-factors system with environmental variance and could not be explained by any genetic model without environmental variance. We showed that there was a positive genetic correlation between weight and sex (r(A) = 0.50 +/- 0.09), apart from the phenotypic sex dimorphism in favor of females. This supports the hypothesis that a minimum size is required for sea bass juveniles to differentiate as females. An evolution of sex ratio by frequency-dependent selection is expected during the domestication process of Dicentrarchus labrax populations, raising concern about the release of such fish in the wild. |
| doi_str_mv | 10.1534/genetics.107.072140 |
| format | Article |
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In the European sea bass, temperature is known to influence the sex ratio. We set up a factorial mating, producing 5.893 individuals from 253 full-sib families, all reared in a single batch to avoid any between-families environmental effects. The proportion of females in the offspring was 18.3%, with a large variation between families. Interpreting sex as a threshold trait, the heritability estimate was 0.62 +/- 0.12. The observed distribution of family sex ratios was in accordance with a polygenic model or with a four-sex-factors system with environmental variance and could not be explained by any genetic model without environmental variance. We showed that there was a positive genetic correlation between weight and sex (r(A) = 0.50 +/- 0.09), apart from the phenotypic sex dimorphism in favor of females. This supports the hypothesis that a minimum size is required for sea bass juveniles to differentiate as females. An evolution of sex ratio by frequency-dependent selection is expected during the domestication process of Dicentrarchus labrax populations, raising concern about the release of such fish in the wild.</description><identifier>ISSN: 0016-6731</identifier><identifier>ISSN: 1943-2631</identifier><identifier>EISSN: 1943-2631</identifier><identifier>DOI: 10.1534/genetics.107.072140</identifier><identifier>PMID: 17435246</identifier><identifier>CODEN: GENTAE</identifier><language>eng</language><publisher>United States: Genetics Soc America</publisher><subject>Animals ; Atlantic Ocean ; Bass ; Bass - genetics ; Crosses, Genetic ; Data collection ; Environment ; Environmental conditions ; Evolution, Molecular ; Farms ; Female ; Females ; Fish ; France ; Investigations ; Life Sciences ; Male ; Males ; Oocytes - physiology ; Selective breeding ; Sex Determination Analysis - methods ; Sex Determination Processes ; Sex Ratio ; Sexes ; Spermatozoa - physiology</subject><ispartof>Genetics (Austin), 2007-06, Vol.176 (2), p.1049-1057</ispartof><rights>Copyright Genetics Society of America Jun 2007</rights><rights>Distributed under a Creative Commons Attribution 4.0 International License</rights><rights>Copyright © 2007 by the Genetics Society of America 2007</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c562t-6906aea1b0605c93457b8a34acfb2e96372e0ad2455fdcd8a5023af8ce8116553</citedby><cites>FETCH-LOGICAL-c562t-6906aea1b0605c93457b8a34acfb2e96372e0ad2455fdcd8a5023af8ce8116553</cites><orcidid>0000-0002-9299-0560 ; 0000-0001-9929-4587</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,780,784,885,27924,27925</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/17435246$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink><backlink>$$Uhttps://hal.inrae.fr/hal-02661907$$DView record in HAL$$Hfree_for_read</backlink></links><search><creatorcontrib>Vandeputte, Marc</creatorcontrib><creatorcontrib>Dupont-Nivet, Mathilde</creatorcontrib><creatorcontrib>Chavanne, Herve</creatorcontrib><creatorcontrib>Chatain, Beatrice</creatorcontrib><title>A Polygenic Hypothesis for Sex Determination in the European Sea Bass Dicentrarchus labrax</title><title>Genetics (Austin)</title><addtitle>Genetics</addtitle><description>Polygenic sex determination, although suspected in several species, is thought to be evolutionarily unstable and has been proven in very few cases. In the European sea bass, temperature is known to influence the sex ratio. We set up a factorial mating, producing 5.893 individuals from 253 full-sib families, all reared in a single batch to avoid any between-families environmental effects. The proportion of females in the offspring was 18.3%, with a large variation between families. Interpreting sex as a threshold trait, the heritability estimate was 0.62 +/- 0.12. The observed distribution of family sex ratios was in accordance with a polygenic model or with a four-sex-factors system with environmental variance and could not be explained by any genetic model without environmental variance. We showed that there was a positive genetic correlation between weight and sex (r(A) = 0.50 +/- 0.09), apart from the phenotypic sex dimorphism in favor of females. This supports the hypothesis that a minimum size is required for sea bass juveniles to differentiate as females. An evolution of sex ratio by frequency-dependent selection is expected during the domestication process of Dicentrarchus labrax populations, raising concern about the release of such fish in the wild.</description><subject>Animals</subject><subject>Atlantic Ocean</subject><subject>Bass</subject><subject>Bass - genetics</subject><subject>Crosses, Genetic</subject><subject>Data collection</subject><subject>Environment</subject><subject>Environmental conditions</subject><subject>Evolution, Molecular</subject><subject>Farms</subject><subject>Female</subject><subject>Females</subject><subject>Fish</subject><subject>France</subject><subject>Investigations</subject><subject>Life Sciences</subject><subject>Male</subject><subject>Males</subject><subject>Oocytes - physiology</subject><subject>Selective breeding</subject><subject>Sex Determination Analysis - methods</subject><subject>Sex Determination Processes</subject><subject>Sex Ratio</subject><subject>Sexes</subject><subject>Spermatozoa - physiology</subject><issn>0016-6731</issn><issn>1943-2631</issn><issn>1943-2631</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2007</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>8G5</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><sourceid>GUQSH</sourceid><sourceid>M2O</sourceid><recordid>eNpdkU2P0zAQhi0EYsvCL0BCFgcQhxR_O7kgld2FIlUCCbhwsSau03iVxMVOttt_j1cpX3uyNPPM-874Reg5JUsquXi7c4MbvU1LSvSSaEYFeYAWtBK8YIrTh2hBCFWF0pyeoScpXRNCVCXLx-iMasElE2qBfqzwl9Ads5a3eH3ch7F1ySfchIi_ult86UYXez_A6MOA_YBzH19NMewdDJkA_B5SwpfeumGMEG07JdxBHeH2KXrUQJfcs9N7jr5_uPp2sS42nz9-ulhtCisVGwtVEQUOaE0UkbbiQuq6BC7ANjVzleKaOQJbJqRstnZbgiSMQ1NaV1KqpOTn6N2su5_q3m3nRTqzj76HeDQBvPm_M_jW7MKNoWWVzUQWeDMLtPfG1quNuasRphStiL6hmX11Movh5-TSaHqfrOs6GFyYktFEMV5xncGX98DrMMUhf4TJSVEutGYZ4jNkY0gpuuaPPSXmLmTzO-Rc0GYOOU-9-PfgvzOnVDPw-nSQ37UHH51JPXRdxqk5HA5UK8OyoKj4L18yslE</recordid><startdate>20070601</startdate><enddate>20070601</enddate><creator>Vandeputte, Marc</creator><creator>Dupont-Nivet, Mathilde</creator><creator>Chavanne, Herve</creator><creator>Chatain, Beatrice</creator><general>Genetics Soc America</general><general>Genetics Society of America</general><general>Oxford University Press</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>4T-</scope><scope>4U-</scope><scope>7QP</scope><scope>7SS</scope><scope>7TK</scope><scope>7TM</scope><scope>7X2</scope><scope>7X7</scope><scope>7XB</scope><scope>88A</scope><scope>88E</scope><scope>88I</scope><scope>8AO</scope><scope>8C1</scope><scope>8FD</scope><scope>8FE</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>8G5</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>ATCPS</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BHPHI</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FR3</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>GUQSH</scope><scope>HCIFZ</scope><scope>K9-</scope><scope>K9.</scope><scope>LK8</scope><scope>M0K</scope><scope>M0R</scope><scope>M0S</scope><scope>M1P</scope><scope>M2O</scope><scope>M2P</scope><scope>M7N</scope><scope>M7P</scope><scope>MBDVC</scope><scope>P64</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>Q9U</scope><scope>RC3</scope><scope>7X8</scope><scope>1XC</scope><scope>5PM</scope><orcidid>https://orcid.org/0000-0002-9299-0560</orcidid><orcidid>https://orcid.org/0000-0001-9929-4587</orcidid></search><sort><creationdate>20070601</creationdate><title>A Polygenic Hypothesis for Sex Determination in the European Sea Bass Dicentrarchus labrax</title><author>Vandeputte, Marc ; Dupont-Nivet, Mathilde ; Chavanne, Herve ; Chatain, Beatrice</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c562t-6906aea1b0605c93457b8a34acfb2e96372e0ad2455fdcd8a5023af8ce8116553</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2007</creationdate><topic>Animals</topic><topic>Atlantic Ocean</topic><topic>Bass</topic><topic>Bass - 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Academic</collection><collection>Hyper Article en Ligne (HAL)</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>Genetics (Austin)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Vandeputte, Marc</au><au>Dupont-Nivet, Mathilde</au><au>Chavanne, Herve</au><au>Chatain, Beatrice</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A Polygenic Hypothesis for Sex Determination in the European Sea Bass Dicentrarchus labrax</atitle><jtitle>Genetics (Austin)</jtitle><addtitle>Genetics</addtitle><date>2007-06-01</date><risdate>2007</risdate><volume>176</volume><issue>2</issue><spage>1049</spage><epage>1057</epage><pages>1049-1057</pages><issn>0016-6731</issn><issn>1943-2631</issn><eissn>1943-2631</eissn><coden>GENTAE</coden><abstract>Polygenic sex determination, although suspected in several species, is thought to be evolutionarily unstable and has been proven in very few cases. In the European sea bass, temperature is known to influence the sex ratio. We set up a factorial mating, producing 5.893 individuals from 253 full-sib families, all reared in a single batch to avoid any between-families environmental effects. The proportion of females in the offspring was 18.3%, with a large variation between families. Interpreting sex as a threshold trait, the heritability estimate was 0.62 +/- 0.12. The observed distribution of family sex ratios was in accordance with a polygenic model or with a four-sex-factors system with environmental variance and could not be explained by any genetic model without environmental variance. We showed that there was a positive genetic correlation between weight and sex (r(A) = 0.50 +/- 0.09), apart from the phenotypic sex dimorphism in favor of females. This supports the hypothesis that a minimum size is required for sea bass juveniles to differentiate as females. An evolution of sex ratio by frequency-dependent selection is expected during the domestication process of Dicentrarchus labrax populations, raising concern about the release of such fish in the wild.</abstract><cop>United States</cop><pub>Genetics Soc America</pub><pmid>17435246</pmid><doi>10.1534/genetics.107.072140</doi><tpages>9</tpages><orcidid>https://orcid.org/0000-0002-9299-0560</orcidid><orcidid>https://orcid.org/0000-0001-9929-4587</orcidid><oa>free_for_read</oa></addata></record> |
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| ispartof | Genetics (Austin), 2007-06, Vol.176 (2), p.1049-1057 |
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| source | MEDLINE; Oxford University Press Journals All Titles (1996-Current); EZB-FREE-00999 freely available EZB journals; Alma/SFX Local Collection |
| subjects | Animals Atlantic Ocean Bass Bass - genetics Crosses, Genetic Data collection Environment Environmental conditions Evolution, Molecular Farms Female Females Fish France Investigations Life Sciences Male Males Oocytes - physiology Selective breeding Sex Determination Analysis - methods Sex Determination Processes Sex Ratio Sexes Spermatozoa - physiology |
| title | A Polygenic Hypothesis for Sex Determination in the European Sea Bass Dicentrarchus labrax |
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