The associations of genetic markers in two related breeds of pigs

The combinations of genetic markers (allotypes, blood-group systems, and po lymorphic proteins) were analyzed in pigs of two phylogenetically related S iberian populations: the newly selected Siberian specialized meat breed SM- 1 (daughter breed) and the reproductive core of the Kemerovo breed (materna l breed). Statistically significant interlocus associations were found betw een the genetic markers that are known not to be linked, being assigned to different linkage groups, and the main selected meat-productivity traits. S ome of these associations were shared by both breeds; others were found to be specific to either maternal or daughter populations. Possible genetic me chanisms underlying these associations and their significance are discussed .