Data from: Within-population polymorphism of sex-determination systems in the common frog (Rana temporaria) ...
In sharp contrast with birds and mammals, the sex chromosomes of ectothermic vertebrates are often undifferentiated, for reasons that remain debated. A linkage map was recently published for Rana temporaria (Linnaeus, 1758) from Fennoscandia (Eastern European lineage), with a proposed sex-determinin...
| Main Authors: | , , , |
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| Format: | Dataset |
| Language: | English |
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Dryad
2013
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| Subjects: | |
| Online Access: | https://dx.doi.org/10.5061/dryad.0mg7h https://datadryad.org/stash/dataset/doi:10.5061/dryad.0mg7h |
| Summary: | In sharp contrast with birds and mammals, the sex chromosomes of ectothermic vertebrates are often undifferentiated, for reasons that remain debated. A linkage map was recently published for Rana temporaria (Linnaeus, 1758) from Fennoscandia (Eastern European lineage), with a proposed sex-determining role for linkage group 2 (LG2). We analysed linkage patterns in lowland and highland populations from Switzerland (Western European lineage), with special focus on LG2. Sibship analyses showed large differences from the Fennoscandian map in terms of recombination rates and loci order, pointing to large-scale inversions or translocations. All linkage groups displayed extreme heterochiasmy (total map length was 12.2 cM in males, versus 869.8 cM in females). Sex determination was polymorphic within populations: a majority of families (with equal sex ratios) showed a strong correlation between offspring phenotypic sex and LG2 paternal haplotypes, whereas other families (some of which with female-biased sex ratios) ... : Table genotypes aLG pj2011 dryadTable of the genotypes from 10 pedigrees, including parents and juveniles with known phenotypic sex. Genotypes include 47 polymorphic microsatellite markers. Genotyping was conducted with an ABI3000 Prism sequencer.Table Genotypes LG2 familles11 dryadTable of genotypes from 10 full pedigrees, including parents, sexed juveniles, and tadpoles. Genotypes include 10 polymorphic microsatellite markers. Genotypes were obtained with an ABI3000 Prism sequencer.Table Genotypes LG2 adultes11 dryadTable of genotypes from adults from five different populations. Genotypes include 11 polymorphic microsatellite markers. ... |
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