The Sex Determining Loci and Sex Chromosomes in the Family Salmonidae
Post-print Salmonids 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 n...
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ftuvicpubl:oai:dspace.library.uvic.ca:1828/6636 2023-05-15T15:32:29+02:00 The Sex Determining Loci and Sex Chromosomes in the Family Salmonidae Davidson, W.S. Huang, K. Fujiki, T.-K. von Schalburg, K.R. Koop, B.F. 2009 application/pdf http://hdl.handle.net/1828/6636 https://doi.org/10.1159/000223073 http://www.karger.com/Article/Abstract/223073 en eng Karger Davidson W. S. et al. 2009, "The Sex Determining Loci and Sex Chromosomes in the Family Salmonidae", SEXUAL DEVELOPMENT, Vol. 3, pp. 78-87 http://dx.doi.org/10.1159/000223073 http://www.karger.com/Article/Abstract/223073 http://hdl.handle.net/1828/6636 Salmonids Sex determination Y chromosome Atlantic salmon candidate genes Article 2009 ftuvicpubl https://doi.org/10.1159/000223073 2022-05-19T06:11:52Z Post-print Salmonids 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. Genome Canada; Genome BC; NSERC Faculty Reviewed Article in Journal/Newspaper Atlantic salmon University of Victoria (Canada): UVicDSpace Canada Sexual Development 3 2-3 78 87 |
institution |
Open Polar |
collection |
University of Victoria (Canada): UVicDSpace |
op_collection_id |
ftuvicpubl |
language |
English |
topic |
Salmonids Sex determination Y chromosome Atlantic salmon candidate genes |
spellingShingle |
Salmonids Sex determination Y chromosome Atlantic salmon candidate genes Davidson, W.S. Huang, K. Fujiki, T.-K. von Schalburg, K.R. Koop, B.F. The Sex Determining Loci and Sex Chromosomes in the Family Salmonidae |
topic_facet |
Salmonids Sex determination Y chromosome Atlantic salmon candidate genes |
description |
Post-print Salmonids 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. Genome Canada; Genome BC; NSERC Faculty Reviewed |
format |
Article in Journal/Newspaper |
author |
Davidson, W.S. Huang, K. Fujiki, T.-K. von Schalburg, K.R. Koop, B.F. |
author_facet |
Davidson, W.S. Huang, K. Fujiki, T.-K. von Schalburg, K.R. Koop, B.F. |
author_sort |
Davidson, W.S. |
title |
The Sex Determining Loci and Sex Chromosomes in the Family Salmonidae |
title_short |
The Sex Determining Loci and Sex Chromosomes in the Family Salmonidae |
title_full |
The Sex Determining Loci and Sex Chromosomes in the Family Salmonidae |
title_fullStr |
The Sex Determining Loci and Sex Chromosomes in the Family Salmonidae |
title_full_unstemmed |
The Sex Determining Loci and Sex Chromosomes in the Family Salmonidae |
title_sort |
sex determining loci and sex chromosomes in the family salmonidae |
publisher |
Karger |
publishDate |
2009 |
url |
http://hdl.handle.net/1828/6636 https://doi.org/10.1159/000223073 http://www.karger.com/Article/Abstract/223073 |
geographic |
Canada |
geographic_facet |
Canada |
genre |
Atlantic salmon |
genre_facet |
Atlantic salmon |
op_relation |
Davidson W. S. et al. 2009, "The Sex Determining Loci and Sex Chromosomes in the Family Salmonidae", SEXUAL DEVELOPMENT, Vol. 3, pp. 78-87 http://dx.doi.org/10.1159/000223073 http://www.karger.com/Article/Abstract/223073 http://hdl.handle.net/1828/6636 |
op_doi |
https://doi.org/10.1159/000223073 |
container_title |
Sexual Development |
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3 |
container_issue |
2-3 |
container_start_page |
78 |
op_container_end_page |
87 |
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1766362980887298048 |