Gc Subtyping in South Indian Tribal and Caste Populations

Abstract

Seven tribal (Konda Kammara – 2 samples; Koya Dora – 3 samples; Lambadi) and caste (Madiga) populations from Andhra Pradesh (South India) have been analyzed for the distribution of Gc subtypes. The observed heterogeneity in the distribution of Gc^1F, Gc^1S and Gc² alleles was found to be statistically significant. Comparisons are made with North Indian populations as well as with those of other racial affiliation. The anthropological impact of the Gc subtype polymorphism is discussed.

The distribution of transferrin, group-specific component and phosphoglucomutase-1 subtypes among the Lepchas of Darjeeling, Eastern India

“…The Japanese and Chinese had a lower frequency of Gc :F and a higher frequency of Gc 2 (Ishimoto et al, 1979;Matsumoto eta[., 1980;Kim and Lewis, 1981;Saha, 1985). However, the Indian population groups have a very low frequency of Gc :F in contrast to the Mongoloid populations (Papiha et al, 1981(Papiha et al, , 1982Karlsson et al, 1983;Walter et al, 1984). The Tibetans have been reported to have a lower frequency of Gc 1F (0.364) and higher frequencies of Gc :s and Gc ~ than either Indian populations or other Mongoloid populations (Omoto and Miyake, 1978;Matsumoto et al, 1980;Kim and Lewis, 1981 ;Kamboh et al, 1984b;Saha, 1985).…”

Investigations on the Variability of Haptoglobin, Transferrin and Gc Polymorphisms in Assam, India

“…Up to now Tf subtype allele frequencies are known for Himachal Pra desh [Walter et al, 1981a], Sikkim [Bhasin et al, in preparation], Manipur [Singh et al, 1986], West Bengal [Reddy et al, 1984], Gujarat [Walter et al, 1984], Karna taka [Kumar et al, in preparation], and Andhra Pradesh [Walter et al, 1981b], Gc subtype allele frequencies are known for Himachal Pradesh [Papiha, 1981;Papiha et al, 1983], Punjab [Papiha et al, 1982], Sikkim [Bhasin et al, in preparation], Manipur [Singh et al, 1986], Karnataka [Kumar etal., in preparation], and Andhra Pradesh [Walter et al, 1984], In order to enlarge our knowledge on the distribution of Tf and Gc subtype al leles in India we report in this paper on the frequency of these alleles in 10 different population groups of Assam ( fig. 1): Brah mins, Kalitas, Kaibartas, Rajbanshis, Muslims, Ahoms, Chutias, Kacharis, Kar bis and Sonowals.…”

Genetic studies among the sedentes and migrant oraons of eastern India

“…The gene frequency of GclF observed in the Oraons of Bihar (0.3829) and Jalpaiguri (0.2953) appears to be much higher than in the other tribal groups of South India (0.082-0.23; Walter et al, 1984;Kamboh and Kirk, 1984). However, the Mongoloid tribes of Assam and East Asia have been reported to have a similar high frequency of GclF (Walter et al, 1986;Saha, 1988a).…”