Lv. Bannikova et La. Zubareva, ANALYSIS OF NONRANDOM ASSOCIATION OF ALLE LES OF 4 MILK PROTEIN LOCI IN POPULATIONS OF THE YAROSLAVL CATTLE BREED, Genetika, 32(11), 1996, pp. 1569-1575
In two populations of Yaroslavl cattle breed, analysis of linkage dise
quilibrium was performed with respect to four milk protein loci, physi
cally linked( caseins CASAS1, CASE, and CASK) or unlinked (caseins and
b-lactoglobulin, LGB). Gametic disequilibria between CASAS1 and CASE
and between CASE and CASK were detected in both populations, whereas t
hose between CASAS1 and CASK or CASAS1 and LGB were found only in the
Gorshikha population. Additionally, analysis of the joint distribution
of genotypes with respect to these loci was carried out by means of c
ontingency tables. Genetic structure of the breed is discussed.