Genomic data of Columbia spotted frog (Rana luteiventris)

In this study, we examined the potential role of thermal adaptation in clinal shifts of life history traits (i.e., lifespan, senescence rate, and recruitment) in the Columbia spotted frog (Rana luteiventris) along a broad temperature gradient in the western USA.

We took advantage of extensive capture-recapture datasets of 20,033 marked individuals from eight populations surveyed annually for 14 – 18 years to examine how mean annual temperature and precipitation influenced demographic parameters (i.e., adult survival, lifespan, senescence rate, recruitment, and population growth). After showing that temperature was the main climatic predictor influencing demography, we used RAD-seq data (50,829 SNPs and 6,599 putative CNVs) generated for 352 individuals from 31 breeding sites to identify genomic signatures of thermal adaptation.

Our results showed that temperature was negatively associated with annual adult survival and reproductive lifespan and positively associated with senescenc...