Data from: Long-term isolation at a low effective population size greatly reduced genetic diversity in Gulf of California fin whales

The Gulf of California, Mexico is home to many cetacean species, including a presumed resident population of fin whales, Balaenoptera physalus. Past studies reported very low levels of genetic diversity among Gulf of California fin whales and a significant level of genetic differentiation from con-specifics in the eastern North Pacific. The aim of the present study was to assess the degree and timing of the isolation of Gulf of California fin whales in a population genetic analysis of 18 nuclear microsatellite genotypes from 402 samples and 565 mitochondrial control region DNA sequences (including mitochondrial sequences retrieved from NCBI). The analyses revealed that the Gulf of California fin whale population was founded ~2.3 thousand years ago and has since remained at a low effective population size (~360) and isolated from the eastern North Pacific (Nem between 0.89–1.4). The low effective population size and high degree of isolation implied that Gulf of California fin whales are vulnerable to the negative effects of genetic drift, human-caused mortality and habitat change.,Microsatellites_GC_NP_fin_whalesMicrosatellite genotypes from Rivera-León et al. (2019) Long-term isolation at a low effective population size greatly reduced genetic diversity in Gulf of California fin whales in Scientific Reports"MtDNA_sequences_Gulf_California_NP_fin_whalesMitochondrial control region DNA sequences from Rivera-León et al. (2019) Long-term isolation at a low effective population size greatly reduced genetic diversity in Gulf of California fin whales in Scientific Reports"

Replication data and scripts for: Ancient dolphin genomes reveal rapid repeated adaptation to coastal waters

This dataset includes the data and scripts supporting the replicability of the paper: Louis M.*, Korlević P.*, Nykänen M.*, Archer F., Berrow S., Brownload A., Lorenzen E. D., O’Brien J., Post K., Racimo F., Rogan E., Rosel P. E., Sinding M.-H. S., van der Es H., Wales N., Fontaine M. C.**, Gaggiotti O. E.**, Foote A. D.** Ancient dolphin genomes reveal rapid repeated adaptation to coastal waters. Nature Communications, in press. (*joint first author ; **joint senior author) Parallel evolution provides among the strongest evidence of the role of natural selection in shaping adaptation to the local environment. Yet, the chronology, mode and tempo of the process of parallel evolution remains broadly debated and discussed in the field of evolutionary biology. In this study, we harness the temporal resolution of paleogenomics to understand the tempo and independence of parallel coastal ecotype adaptation in common bottlenose dolphins (Tursiops truncatus). For this, we generated whole genome re-sequencing data from subfossil dolphins (8,610-5,626 years BP) originating from around the formation time of new coastal habitat and compared them with data from contemporary populations