Phosphoglycolate Phosphatase Polymorphism: Gene Frequencies in Three Italian Samples

Abstract

The electrophoretic polymorphism of the PGP locus has been studied in about 1,700 Italians. The sample consisted of individuals from Viareggio (North-Central Italy), Rome (Central Italy) and Cagliari (Sardinia, Southern Italy). Comparison among the three groups showed a high degree of heterogeneity. The Sardinian sample was well differentiated from the other two concerning the frequencies of both the PGP³ and of PGP² alleles. The frequency of the PGP¹ allele varied from 0.900 (Viareggio) to 0.987 (Cagliari). The gene frequencies, together with those available for other European populations were plotted against the latitudes of the different localities sampled and fitted to a North-South cline.

Genetic heterogeneity among the Hindus and their relationships with the other “Caucasoid” populations: New data on Punjab‐Haryana and Rajasthan Indian States

“…In the Rajasthan Hindus (the only Hindu sample examined so far) the PGP system exhibits quite a peculiar distribution in that the pooled frequency of PGP*2 and PGP*3, and particularly that of the latter, is a lot higher than that expected according to the latitude-PGP*1 gene frequency cline described by Santolamazza et al (1986).…”