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Genetic diversity and introgression in the Scottish Wildcat

Beaumont, M., Barrat, E. M., Gottelli, D., Kitchener, A. C., Daniels, M. J., Pritchard, J. K. and Bruford, Michael William 2001. Genetic diversity and introgression in the Scottish Wildcat. Molecular Ecology 10 (2) , pp. 319-336. 10.1046/j.1365-294x.2001.01196.x

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Abstract

This paper describes a genetic analysis of wild-living cats in Scotland. Samples from 230 wild-living Scottish cats (including 13 museum skins) and 74 house cats from England and Scotland were surveyed for nine microsatellite loci. Pelage characteristics of the wild-living cats were recorded, and the cats were then grouped into five separate categories depending on the degree to which they conformed to the characteristics attributed to Felis silvestris Schreber, 1775. Allele frequency differences between the morphological groups are greater than those among the three house cat samples. Analysis of genetic distances suggests that more of the differences between individuals can be explained by pelage than geographical proximity, and that pelage and geographical location are not confounded. Ordination of the genetic distances suggests two main groups of wild-living cats, with intermediates, and one group is genetically very similar to the house cats, while the other group contains all cats taxonomically identified as wildcat based on morphology. A genetic mixture analysis gives similar results to the ordination, but also suggests that the genotypes of a substantial number of cats in the wildcat group are drawn from a gene pool with genotypes in approximately equilibrium proportions. We argue that this is evidence that these cats do not have very recent domestic ancestry. However, from the morphological data it is highly likely that this gene pool also contains a contribution from earlier introgression of domestic cat genes.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Biosciences
Sustainable Places Research Institute (PLACES)
ISSN: 0962-1083
Last Modified: 04 Jun 2017 01:38
URI: http://orca-mwe.cf.ac.uk/id/eprint/1182

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