Mapping microsatellite (MS) loci in sheep (Maddox, 2001) has opened an opportunity for detailed investigation of genetic structure of populations. These studies may contribute to better understanding of population dynamics including estimation of linkage disequilibrium (LD). The latest is useful for estimation selective forces, random factors and the history of populations.  This paper presents an initial step in investigation of three sheep populations. We used 22 markers with the following aims : 1) to assess the genetic variation and population parameters in three Australian Merino flocks, which experienced specific selection pressures over a number of generations, 2) to study LD, using 14 markers located on 6 different chromosomes with at least 2 markers on each chromosome. 

R. Al-Atiyat, W. D Flood, I. Franklin, Brian P Kinghorn, A. Ruvinsky

Proceedings of the World Congress on Genetics Applied to Livestock Production, Volume 2002. Session 12, , 12.12, 2002
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