{"refrec":{"BRefID":285437,"RR":"<b>Coscia, I.; Chopelet, J.; Waples, R.S.; Mann, B.Q.; Mariani, S.</b> (2016). Sex change and effective population size: implications for population genetic studies in marine fish. <i>Heredity 117(4)</i>: 251-258. <a href=\"https://dx.doi.org/10.1038/hdy.2016.50\" target=\"_blank\">https://dx.doi.org/10.1038/hdy.2016.50</a>","BEntID":277462,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Heredity 117(4)</i>: 251-258. <a href=\"https://dx.doi.org/10.1038/hdy.2016.50\" target=\"_blank\">https://dx.doi.org/10.1038/hdy.2016.50</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Coscia, I.; Chopelet, J.; Waples, R.S.; Mann, B.Q.; Mariani, S.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Coscia, I. <i>et al.</i>","Englishabstract":"Large variance in reproductive success is the primary factor that reduces effective population size (N<sub>e</sub>) in natural populations. In sequentially hermaphroditic (sex-changing) fish, the sex ratio is typically skewed and biased towards the ‘first’ sex, while reproductive success increases considerably after sex change. Therefore, sex-changing fish populations are theoretically expected to have lower N<sub>e</sub> than gonochorists (separate sexes), assuming all other parameters are essentially equal. In this study, we estimate N<sub>e</sub> from genetic data collected from two ecologically similar species living along the eastern coast of South Africa: one gonochoristic, the ‘santer’ sea bream Cheimerius nufar, and one protogynous (female-first) sex changer, the ‘slinger’ sea bream Chrysoblephus puniceus. For both species, no evidence of genetic structuring, nor significant variation in genetic diversity, was found in the study area. Estimates of contemporary N<sub>e</sub> were significantly lower in the protogynous species, but the same pattern was not apparent over historical timescales. Overall, our results show that sequential hermaphroditism may affect N<sub>e</sub> differently over varying time frames, and that demographic signatures inferred from genetic markers with different inheritance modes also need to be interpreted cautiously, in relation to sex-changing life histories.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Sex change and effective population size: implications for population genetic studies in marine fish","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2024-12-10 01:33:17.368041","timezone_type":1,"timezone":"+01:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":2016,"MonPub":null,"DateUpdate":"2017-06-02","DateCreate":"2017-05-16","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000383707900008","VABBcode":null,"OpenAcc":0,"DOI":"10.1038/hdy.2016.50"},"refs":null,"anarec":{"AnaID":285437,"PubliDate":2016,"Pagination":"251-258","XtraPublOfAnaID":null,"ISBN":null,"Volume":"117","Issue":"4","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":43119,"SerRR":"Heredity. 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