期刊
CONSERVATION GENETICS
卷 8, 期 3, 页码 727-732出版社
SPRINGER
DOI: 10.1007/s10592-006-9205-y
关键词
Cetacea; genetic diversity; population structure
The Risso's dolphin (Grampus griseus) has a worldwide distribution, but little is known about their population genetic structure. Local coastal populations are never known to be abundant, and are sometimes under anthropogenic impact. Therefore the question of regional differentiation by genetic drift and overall diversity levels is of conservation interest. Here we present preliminary data that clearly indicate genetic differentiation and lower genetic diversity of a population sampled in UK waters (primarily from the Western Isles, Scotland) compared to a Mediterranean sample. Significant differentiation was found in comparison with a sample from the Mediterranean for both microsatellite DNA markers (F-ST = 0.0296) and mtDNA sequence data (F-ST = 0.260; sub set (ST) = 0.542). Allelic diversity was lower in the UK for nearly all loci.
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