Data from: Sex-chromosome differentiation and 'sex races' in the common frog (Rana temporaria)
Sex-chromosome differentiation was recently shown to vary among common frog populations in Fennoscandia, suggesting a trend of increased differentiation with latitude. By rearing families from two contrasted populations (respectively, from northern and southern Sweden), we show this disparity to ste...
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ftzenodo:oai:zenodo.org:5021750 2023-06-06T11:53:34+02:00 Data from: Sex-chromosome differentiation and 'sex races' in the common frog (Rana temporaria) Rodrigues, Nicolas Vuille, Yvan Loman, Jon Perrin, Nicolas 2015-03-12 https://zenodo.org/record/5021750 https://doi.org/10.5061/dryad.4j169 unknown doi:10.1098/rspb.2014.2726 https://zenodo.org/communities/dryad https://zenodo.org/record/5021750 https://doi.org/10.5061/dryad.4j169 oai:zenodo.org:5021750 info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode Gonadal development XY recombination sex chromosomes epigenetic sex determination Rana temporaria info:eu-repo/semantics/other dataset 2015 ftzenodo https://doi.org/10.5061/dryad.4j16910.1098/rspb.2014.2726 2023-04-13T21:32:53Z Sex-chromosome differentiation was recently shown to vary among common frog populations in Fennoscandia, suggesting a trend of increased differentiation with latitude. By rearing families from two contrasted populations (respectively, from northern and southern Sweden), we show this disparity to stem from differences in sex-determination mechanisms rather than in XY-recombination patterns. Offspring from the northern population display equal sex ratios at metamorphosis, with phenotypic sexes that correlate strongly with paternal LG2 haplotypes (the sex chromosome); accordingly, Y haplotypes are markedly differentiated, with male-specific alleles and depressed diversity testifying to their smaller effective population size. In the southern population, by contrast, a majority of juveniles present ovaries at metamorphosis; only later in development do sex ratios return to equilibrium. Even at these later stages, phenotypic sexes correlate only mildly with paternal LG2 haplotypes; accordingly, there are no recognizable Y haplotypes. These distinct patterns of gonadal development fit the concept of 'sex races' proposed in the 1930s, with our two populations assigned to the 'differentiated' and 'semi-differentiated' races, respectively. Our results support the suggestion that 'sex races' differ in the genetic versus epigenetic components of sex determination. Analysing populations from the 'undifferentiated race' with high-density genetic maps should help to further test this hypothesis. Table S2 - raw LG2-15 genotypes dryadRaw genotypic data for the 62 adults and 594 offspring from the two Swedish populations of Ammarnäs and Tvedöra. Dataset Fennoscandia Zenodo Ammarnäs ENVELOPE(16.210,16.210,65.958,65.958) |
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unknown |
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Gonadal development XY recombination sex chromosomes epigenetic sex determination Rana temporaria |
spellingShingle |
Gonadal development XY recombination sex chromosomes epigenetic sex determination Rana temporaria Rodrigues, Nicolas Vuille, Yvan Loman, Jon Perrin, Nicolas Data from: Sex-chromosome differentiation and 'sex races' in the common frog (Rana temporaria) |
topic_facet |
Gonadal development XY recombination sex chromosomes epigenetic sex determination Rana temporaria |
description |
Sex-chromosome differentiation was recently shown to vary among common frog populations in Fennoscandia, suggesting a trend of increased differentiation with latitude. By rearing families from two contrasted populations (respectively, from northern and southern Sweden), we show this disparity to stem from differences in sex-determination mechanisms rather than in XY-recombination patterns. Offspring from the northern population display equal sex ratios at metamorphosis, with phenotypic sexes that correlate strongly with paternal LG2 haplotypes (the sex chromosome); accordingly, Y haplotypes are markedly differentiated, with male-specific alleles and depressed diversity testifying to their smaller effective population size. In the southern population, by contrast, a majority of juveniles present ovaries at metamorphosis; only later in development do sex ratios return to equilibrium. Even at these later stages, phenotypic sexes correlate only mildly with paternal LG2 haplotypes; accordingly, there are no recognizable Y haplotypes. These distinct patterns of gonadal development fit the concept of 'sex races' proposed in the 1930s, with our two populations assigned to the 'differentiated' and 'semi-differentiated' races, respectively. Our results support the suggestion that 'sex races' differ in the genetic versus epigenetic components of sex determination. Analysing populations from the 'undifferentiated race' with high-density genetic maps should help to further test this hypothesis. Table S2 - raw LG2-15 genotypes dryadRaw genotypic data for the 62 adults and 594 offspring from the two Swedish populations of Ammarnäs and Tvedöra. |
format |
Dataset |
author |
Rodrigues, Nicolas Vuille, Yvan Loman, Jon Perrin, Nicolas |
author_facet |
Rodrigues, Nicolas Vuille, Yvan Loman, Jon Perrin, Nicolas |
author_sort |
Rodrigues, Nicolas |
title |
Data from: Sex-chromosome differentiation and 'sex races' in the common frog (Rana temporaria) |
title_short |
Data from: Sex-chromosome differentiation and 'sex races' in the common frog (Rana temporaria) |
title_full |
Data from: Sex-chromosome differentiation and 'sex races' in the common frog (Rana temporaria) |
title_fullStr |
Data from: Sex-chromosome differentiation and 'sex races' in the common frog (Rana temporaria) |
title_full_unstemmed |
Data from: Sex-chromosome differentiation and 'sex races' in the common frog (Rana temporaria) |
title_sort |
data from: sex-chromosome differentiation and 'sex races' in the common frog (rana temporaria) |
publishDate |
2015 |
url |
https://zenodo.org/record/5021750 https://doi.org/10.5061/dryad.4j169 |
long_lat |
ENVELOPE(16.210,16.210,65.958,65.958) |
geographic |
Ammarnäs |
geographic_facet |
Ammarnäs |
genre |
Fennoscandia |
genre_facet |
Fennoscandia |
op_relation |
doi:10.1098/rspb.2014.2726 https://zenodo.org/communities/dryad https://zenodo.org/record/5021750 https://doi.org/10.5061/dryad.4j169 oai:zenodo.org:5021750 |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode |
op_doi |
https://doi.org/10.5061/dryad.4j16910.1098/rspb.2014.2726 |
_version_ |
1767959774019715072 |