Localization of thePo2locus in theS, Phi, Hal, H, Po2, Pgdlinkage group in pigs

Abstract
The localization of the Po2 locus controlling a polymorphic serum postalbumin was studied in 41 families of the Czech Landrace breed. The haplotypes involving six closely linked loci (S, Phi, Hal, H, Po2, Pgd) were determined for each family member. The crossovers observed between the H, Po2, and Pgd loci indicated that Po2 is located between H and Pgd. The Po2 locus appears to be closer to H [.cxa..theta. = 0.54% (0.06%-1.92%)] than to Pgd [.cxa..theta. = 4.02% (1.67%-7.96%)]. A strong Ha-Po2S association (r = 0.96, P < 0.001) and H - Po2 linkage disequilibrium (D = 0.2218, P < 0.01, D/DMax = 0.98) were found.