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- W4312155002 abstract "A key in species conservation is understanding the amount and distribution of genetic diversity and how environmental changes that occurred in the recent past may have influenced current patterns of population structure. Commerson's dolphin, Cephalorhynchus commersonii, has two subspecies, one of which is endemic to South America (C. commersonii commersonii) and little is known about its population genetics. Our objective was to investigate the population genetics of this subspecies throughout its distribution. Using 70 skin samples and information available in GenBank, 308 mitochondrial DNA sequences and 28 species-specific microsatellites were analyzed. The species presented low genetic diversity when compared to other dolphin species, but was consistent with other species within the genus. Strong population structure based on mitochondrial DNA was exhibited throughout its entire distribution, a pattern consistent with female philopatry. However, this pattern was not detected when using microsatellites, suggesting male-mediated gene flow. Demographic tests suggested a population expansion beginning approximately 15,000 years ago, after the Last Glacial Maximum. In a climate change scenario, we recommended considering each sampling location as an independent population management unit in order to evaluate the impact of possible environmental changes on the distribution of genetic information within the species." @default.
- W4312155002 created "2023-01-04" @default.
- W4312155002 creator A5001841897 @default.
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- W4312155002 creator A5064319060 @default.
- W4312155002 creator A5085567413 @default.
- W4312155002 creator A5091367644 @default.
- W4312155002 date "2022-12-23" @default.
- W4312155002 modified "2023-10-06" @default.
- W4312155002 title "Commerson’s dolphin population structure: evidence for female phylopatry and male dispersal" @default.
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- W4312155002 doi "https://doi.org/10.1038/s41598-022-26192-0" @default.
- W4312155002 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/36564404" @default.
- W4312155002 hasPublicationYear "2022" @default.
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