[Genetic relationship of the loci of phosphohexose isomerase and G-system blood groups in swine].

: The hybridological analysis for gene mapping of the locus of phosphohexose isomerase (PHI) of pigs was carried out. The locus of G blood group system was used as a marker of the chromosome 15. 26 families with 200 piglets were obtained from backcross matings. The analysis of haplotype segregation pointed to the lack of independent inheritance of PHI and G systems loci and to weak linkage between these loci. The recombination frequency was estimated to be 39%. The results obtained are discussed in connection with the problem of establishment of accurate gene maps.