Data from: Sex reversal and primary sex ratios in the common frog (Rana temporaria) ...

• Main Authors: Alho, Jussi S, Chikako, Matsuba, Merilä, Juha
• Format: Dataset
• Language: English
• Published: Dryad 2010
• Subjects: Sex linkage; amphibian; Rana temporaria; Sex determination; Tadpole; Subarctic
• Online Access: https://dx.doi.org/10.5061/dryad.8111; https://datadryad.org/stash/dataset/doi:10.5061/dryad.8111

Sex reversal has been suggested to have profound implications for the evolution of sex chromosomes and population dynamics in ectotherms. Occasional sex reversal of genetic males has been hypothesized to prevent the evolutionary decay of nonrecombining Y chromosomes caused by the accumulation of deleterious mutations. At the same time, sex reversals can have a negative effect on population growth rate. Here, we studied phenotypic and genotypic sex in the common frog (Rana temporaria) in a subarctic environment, where strongly female-biased sex ratios have raised the possibility of frequent sex reversals. We developed two novel sex-linked microsatellite markers for the species and used them with a third, existing marker and a Bayesian modelling approach to study the occurrence of sex reversal and to determine primary sex ratios in egg clutches. Our results show that a significant proportion (0.09, 95% credible interval: 0.04–0.18) of adults that were genetically female expressed the male phenotype, but there ... : Dryad sheet1. Adult: Genotype data of adult common frogs (Rana temporaria) in Kilpisjarvi Finland, using three microsatellite loci (RtSB03, BFG201, BFG266). 2. Tadpole: Genotype of tadpoles (Rana temporaria) in Kilpisjarvi Finland, using three microsatellite loci (RtSB03, BFG201, BFG266). ...