Data_Sheet_2_Autosomal sdY Pseudogenes Explain Discordances Between Phenotypic Sex and DNA Marker for Sex Identification in Atlantic Salmon.docx
Despite the key role that sex-determination plays in evolutionary processes, it is still poorly understood in many species. In salmonids, which are among the best studied fishes, the master sex-determining gene sexually dimorphic on the Y-chromosome (sdY) has been identified. However, sdY displays u...
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ftfrontimediafig:oai:figshare.com:article/13088669 2023-05-15T15:31:07+02:00 Data_Sheet_2_Autosomal sdY Pseudogenes Explain Discordances Between Phenotypic Sex and DNA Marker for Sex Identification in Atlantic Salmon.docx Fernando Ayllon Monica Favnebøe Solberg François Besnier Per Gunnar Fjelldal Tom Johnny Hansen Anna Wargelius Rolf Brudvik Edvardsen Kevin Alan Glover 2020-10-14T04:45:21Z https://doi.org/10.3389/fgene.2020.544207.s002 https://figshare.com/articles/dataset/Data_Sheet_2_Autosomal_sdY_Pseudogenes_Explain_Discordances_Between_Phenotypic_Sex_and_DNA_Marker_for_Sex_Identification_in_Atlantic_Salmon_docx/13088669 unknown doi:10.3389/fgene.2020.544207.s002 https://figshare.com/articles/dataset/Data_Sheet_2_Autosomal_sdY_Pseudogenes_Explain_Discordances_Between_Phenotypic_Sex_and_DNA_Marker_for_Sex_Identification_in_Atlantic_Salmon_docx/13088669 CC BY 4.0 CC-BY Genetics Genetic Engineering Biomarkers Developmental Genetics (incl. Sex Determination) Epigenetics (incl. Genome Methylation and Epigenomics) Gene Expression (incl. Microarray and other genome-wide approaches) Genome Structure and Regulation Genomics Genetically Modified Animals Livestock Cloning Gene and Molecular Therapy sex evolution autosome pseudo-gene SNP Atlantic salmon sdY sex chromosome Dataset 2020 ftfrontimediafig https://doi.org/10.3389/fgene.2020.544207.s002 2020-10-14T22:54:58Z Despite the key role that sex-determination plays in evolutionary processes, it is still poorly understood in many species. In salmonids, which are among the best studied fishes, the master sex-determining gene sexually dimorphic on the Y-chromosome (sdY) has been identified. However, sdY displays unexplained discordance to the phenotypic sex, with a variable frequency of phenotypic females being reported as genetic males. Multiple sex determining loci in Atlantic salmon have also been reported, possibly as a result of recent transposition events in this species. We hypothesized the existence of an autosomal copy of sdY, causing apparent discordance between phenotypic and genetic sex, that is transmitted in accordance with autosomal inheritance. To test this, we developed a qPCR methodology to detect the total number of sdY copies present in the genome. Based on the observed phenotype/genotype frequencies and linkage analysis among 2,025 offspring from 64 pedigree-controlled families of accurately phenotyped Atlantic salmon, we identified both males and females carrying one or two autosomal copies of sdY in addition to the Y-specific copy present in males. Patterns across families were highly consistent with autosomal inheritance. These autosomal sdY copies appear to have lost the ability to function as a sex determining gene and were only occasionally assigned to the actual sex chromosome in any of the affected families. Dataset Atlantic salmon Frontiers: Figshare The ''Y'' ENVELOPE(-112.453,-112.453,57.591,57.591) |
institution |
Open Polar |
collection |
Frontiers: Figshare |
op_collection_id |
ftfrontimediafig |
language |
unknown |
topic |
Genetics Genetic Engineering Biomarkers Developmental Genetics (incl. Sex Determination) Epigenetics (incl. Genome Methylation and Epigenomics) Gene Expression (incl. Microarray and other genome-wide approaches) Genome Structure and Regulation Genomics Genetically Modified Animals Livestock Cloning Gene and Molecular Therapy sex evolution autosome pseudo-gene SNP Atlantic salmon sdY sex chromosome |
spellingShingle |
Genetics Genetic Engineering Biomarkers Developmental Genetics (incl. Sex Determination) Epigenetics (incl. Genome Methylation and Epigenomics) Gene Expression (incl. Microarray and other genome-wide approaches) Genome Structure and Regulation Genomics Genetically Modified Animals Livestock Cloning Gene and Molecular Therapy sex evolution autosome pseudo-gene SNP Atlantic salmon sdY sex chromosome Fernando Ayllon Monica Favnebøe Solberg François Besnier Per Gunnar Fjelldal Tom Johnny Hansen Anna Wargelius Rolf Brudvik Edvardsen Kevin Alan Glover Data_Sheet_2_Autosomal sdY Pseudogenes Explain Discordances Between Phenotypic Sex and DNA Marker for Sex Identification in Atlantic Salmon.docx |
topic_facet |
Genetics Genetic Engineering Biomarkers Developmental Genetics (incl. Sex Determination) Epigenetics (incl. Genome Methylation and Epigenomics) Gene Expression (incl. Microarray and other genome-wide approaches) Genome Structure and Regulation Genomics Genetically Modified Animals Livestock Cloning Gene and Molecular Therapy sex evolution autosome pseudo-gene SNP Atlantic salmon sdY sex chromosome |
description |
Despite the key role that sex-determination plays in evolutionary processes, it is still poorly understood in many species. In salmonids, which are among the best studied fishes, the master sex-determining gene sexually dimorphic on the Y-chromosome (sdY) has been identified. However, sdY displays unexplained discordance to the phenotypic sex, with a variable frequency of phenotypic females being reported as genetic males. Multiple sex determining loci in Atlantic salmon have also been reported, possibly as a result of recent transposition events in this species. We hypothesized the existence of an autosomal copy of sdY, causing apparent discordance between phenotypic and genetic sex, that is transmitted in accordance with autosomal inheritance. To test this, we developed a qPCR methodology to detect the total number of sdY copies present in the genome. Based on the observed phenotype/genotype frequencies and linkage analysis among 2,025 offspring from 64 pedigree-controlled families of accurately phenotyped Atlantic salmon, we identified both males and females carrying one or two autosomal copies of sdY in addition to the Y-specific copy present in males. Patterns across families were highly consistent with autosomal inheritance. These autosomal sdY copies appear to have lost the ability to function as a sex determining gene and were only occasionally assigned to the actual sex chromosome in any of the affected families. |
format |
Dataset |
author |
Fernando Ayllon Monica Favnebøe Solberg François Besnier Per Gunnar Fjelldal Tom Johnny Hansen Anna Wargelius Rolf Brudvik Edvardsen Kevin Alan Glover |
author_facet |
Fernando Ayllon Monica Favnebøe Solberg François Besnier Per Gunnar Fjelldal Tom Johnny Hansen Anna Wargelius Rolf Brudvik Edvardsen Kevin Alan Glover |
author_sort |
Fernando Ayllon |
title |
Data_Sheet_2_Autosomal sdY Pseudogenes Explain Discordances Between Phenotypic Sex and DNA Marker for Sex Identification in Atlantic Salmon.docx |
title_short |
Data_Sheet_2_Autosomal sdY Pseudogenes Explain Discordances Between Phenotypic Sex and DNA Marker for Sex Identification in Atlantic Salmon.docx |
title_full |
Data_Sheet_2_Autosomal sdY Pseudogenes Explain Discordances Between Phenotypic Sex and DNA Marker for Sex Identification in Atlantic Salmon.docx |
title_fullStr |
Data_Sheet_2_Autosomal sdY Pseudogenes Explain Discordances Between Phenotypic Sex and DNA Marker for Sex Identification in Atlantic Salmon.docx |
title_full_unstemmed |
Data_Sheet_2_Autosomal sdY Pseudogenes Explain Discordances Between Phenotypic Sex and DNA Marker for Sex Identification in Atlantic Salmon.docx |
title_sort |
data_sheet_2_autosomal sdy pseudogenes explain discordances between phenotypic sex and dna marker for sex identification in atlantic salmon.docx |
publishDate |
2020 |
url |
https://doi.org/10.3389/fgene.2020.544207.s002 https://figshare.com/articles/dataset/Data_Sheet_2_Autosomal_sdY_Pseudogenes_Explain_Discordances_Between_Phenotypic_Sex_and_DNA_Marker_for_Sex_Identification_in_Atlantic_Salmon_docx/13088669 |
long_lat |
ENVELOPE(-112.453,-112.453,57.591,57.591) |
geographic |
The ''Y'' |
geographic_facet |
The ''Y'' |
genre |
Atlantic salmon |
genre_facet |
Atlantic salmon |
op_relation |
doi:10.3389/fgene.2020.544207.s002 https://figshare.com/articles/dataset/Data_Sheet_2_Autosomal_sdY_Pseudogenes_Explain_Discordances_Between_Phenotypic_Sex_and_DNA_Marker_for_Sex_Identification_in_Atlantic_Salmon_docx/13088669 |
op_rights |
CC BY 4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3389/fgene.2020.544207.s002 |
_version_ |
1766361606032195584 |