Population studies on PLG group system in the Polish population.

Distribution of PLG types was studied in a sample of the Polish population numbering 230 subjects by the method of high-voltage agarose electrophoresis. Of three phenotypes encountered, PLG1, appeared with the frequency of 0.4870, PLG2-1 with 0.4391 and PLG2 with 0.0739. Assuming the hypothesis of PLG controlled by 2 alleles the frequencies of genotypes were calculated as follows: for PLG1 gene -0.71 and for PLG2 gene -0.29. PLG system in the Polish population was confirmed to be in a state of genetic equilibrium. The frequencies of PLG genes in the Polish population do not deviate from the frequencies encountered in other European populations.