The Sex Determining Loci and Sex Chromosomes in the Family Salmonidae

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dc.contributor.authorDavidson, W.S.
dc.contributor.authorHuang, K.
dc.contributor.authorFujiki, T.-K.
dc.contributor.authorvon Schalburg, K.R.
dc.contributor.authorKoop, B.F.
dc.date.accessioned2015-08-31T21:54:14Z
dc.date.available2015-08-31T21:54:14Z
dc.date.copyright2009en_US
dc.date.issued2009
dc.descriptionPost-printen_US
dc.description.abstractSalmonids are descended from a common ancestor that underwent an autotetraploidization event. After a whole genome duplication species could deal with sex determination by deleting one copy of SEX, the sex determining locus, or by recruiting a duplicated transcription factor to become a novel sex determining gene. It is not known which if any of these strategies salmonids adopted, but it appears that they all have primarily a genetic mechanism of sex determination with male heterogamety. The sharing of sex-linked markers on the X and Y chromosomes and the difficulty in identifying Y-specific markers indicate that X and Y chromosomes in salmonids have a large pseudoautosomal region and a small sex determining region. Linkage analyses suggest that either SEX differs in different lineages or else has remained the same and moved by transposition to different chromosomes. The identification of the sex chromosomes in salmonid species has not resolved this issue. It is clear that salmonids are at an early stage in sex chromosome differentiation and therefore provide a wonderful opportunity to study the evolution of sex determination. The availability of a reference salmonid genome sequence would provide an important resource for research in this area.en_US
dc.description.reviewstatusRevieweden_US
dc.description.scholarlevelFacultyen_US
dc.description.sponsorshipGenome Canada; Genome BC; NSERCen_US
dc.identifier.citationDavidson W. S. et al. 2009, "The Sex Determining Loci and Sex Chromosomes in the Family Salmonidae", SEXUAL DEVELOPMENT, Vol. 3, pp. 78-87en_US
dc.identifier.urihttp://dx.doi.org/10.1159/000223073
dc.identifier.urihttp://www.karger.com/Article/Abstract/223073
dc.identifier.urihttp://hdl.handle.net/1828/6636
dc.language.isoenen_US
dc.publisherKargeren_US
dc.subjectSalmonids
dc.subjectSex determination
dc.subjectY chromosome
dc.subjectAtlantic salmon
dc.subjectcandidate genes
dc.subject.departmentDepartment of Biology
dc.titleThe Sex Determining Loci and Sex Chromosomes in the Family Salmonidaeen_US
dc.typeArticleen_US

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