Ludovic Say is now at the following address: University College Dublin, Department of Zoology, Belfield, Dublin 4, Ireland.
Microspatial genetic heterogeneity and gene flow in stray cats (Felis catus L.): a comparison of coat colour and microsatellite loci
Article first published online: 25 APR 2003
Volume 12, Issue 6, pages 1669–1674, June 2003
How to Cite
Say, L., Bonhomme, F., Desmarais, E. and Pontier, D. (2003), Microspatial genetic heterogeneity and gene flow in stray cats (Felis catus L.): a comparison of coat colour and microsatellite loci. Molecular Ecology, 12: 1669–1674. doi: 10.1046/j.1365-294X.2003.01824.x
- Issue published online: 25 APR 2003
- Article first published online: 25 APR 2003
- Received 10 October 2002; revision received 24 January 2003; accepted 24 January 2003
- coat colour markers;
- Felis catus;
- microsatellite markers;
- population differentiation
We analysed levels of genetic differentiation between nine local urban colonies of stray cats using eight coat colour and nine microsatellite loci. Both types of markers revealed a strong differentiation between colonies (FST = 0.15 and 0.09 for coat colour and microsatellite loci, respectively). Three coat colour loci showed extreme levels of genetic differentiation comparatively to other loci and are strongly suspected to be under divergent selective pressures. Microsatellite loci showed significant heterozygote deficiency within colonies (FIS = 0.14), suggesting that coat colour loci are not appropriate to investigate genetic structure at a fine scale because coat colour allele frequencies are based on Hardy–Weinberg equilibrium. The reported pattern conformed to that predicted from the social structuring of cat colonies: aggressive exclusion of immigrants, inbreeding and very low dispersal rate.