NON-SPECIFIC HETEROSIS ON A COMPLEX OF FEATURES OF ADAPTABILITY ON THE EXAMPLE OF MINI-PIGS

The authors studied the genetic diversity of reproductive nucleus mini-pigs at Institute Cytology and Genetics (IC&G) Siberian Branch Russian Academy Sciences (SB RAS). To do this, used indicators individual homo- heterozygosity, calculated based on «blood fractions» large small forms domestic pigs, initial for breeding group. study showed that average value heterozygosity (conditionally actual) is 0.800±0.004, while homozygosity contribution pig 0.020±0.002 0.180±0.010, respectively. indicator fraction» can have two interpretations: 1) probability transmission ancestral allele in several generations; 2) proportion genome ancestor present descendant. determined their frequencies, which turned out to be 0.424 0.576 as if assuming presence a hypothetical locus with different alleles (respectively Ak Am). these frequencies respecting Hardy-Weinberg law. As result, it unbiased 0.493±0.067, significantly (P<0.001) less than observed conditional-actual value. Selection carried according set signs general fitness (state health, qualities, viability offspring, etc.) during formation core group IC&G SB RAS. Therefore, concluded increased stock due preferential selection heterozygotes. But since fitness, stated there an effect nonspecific heterosis heterozygosity. into individuals high values by proposed method provide adaptiveness.