Study of phosphoglucomutase polymorphism by isoelectric focusing: gene frequencies in the Gaddi tribe of Himachal Pradesh, India.

A total of 254 Rajputs and Brahmins of the Gaddi tribe from the regions of Kangra and Chamba in Himachal Pradesh, north-west India, were examined for red cell PGM1 phenotypes by isoelectric focusing (IEF). All the ten possible phenotypes from the four alleles of PGM1 described by IEF were found in this population. Comparison of gene frequencies in the present two ethnic groups and with the only other study available on Asians from London shows that IEF is another useful biochemical method for the study of population diversity.