Genetic Studies on the Kolams of Andhra Pradesh, India

Ramesh, A.; Murty, J. S.; Blake, N. M.

doi:10.1159/000153032

Cited by 14 publications

(17 citation statements)

References 12 publications

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“…The ESD 2 alMe frequency ranges between 0.2448 in the Raj Gond of Maharashtra and 0.3989 in the Paroja of Orissa. The present allele frequencies of ESD 2 remain within the range of reported allele frequencies among Indian tribes which show a wide range of variation, that is lowest ESD 2 (0.022) among the Gaddi Rajput of Himachal Pradesh (Singh et al, 1982) and a highest (0.475) is in the Kolam of Andhra Pradesh (Ramesh et al, 1979). In general, there has been a gradual decline of ESD 2 allele from east to west direction except for a few transient elevation among the Bhatra of Bastar and among the Paroja of Koraput districts.…”

Section: The Distributionsupporting

confidence: 76%

Study of enzyme polymorphism and haemoglobin patterns amongst sixteen tribal populations of central India (Orissa, Madhya Pradesh, and Maharashtra)

et al. 1993

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SummaryA survey was conducted to study the genetic differentiation among 16 tribal groups of Orissa, Madhya Pradesh, and Maharashtra belonging to different ethnic and linguistic affiliations. Sixteen hundred and fifteen blood samples from both sexes were tested for 5 red cell enzyme systems: ACP, ESD, PGD, GLO, LDH, and Hb pattern. Three hundred and nineteen male individuals were tested for G-6-PD enzyme deficiency. The distribution of the enzyme markers and Hb show a range of variation which are more or less within the Indian range. Cases of homozygous HbSS were detected in all the tribes except 3 tribes in Orissa. Two cases of LDH Cal-I homozygote were found in two Dravidian language speaking Orissa tribes. The Z2-values for testing the homogeneity of gene frequencies indicate a non-significant heterogeneity for all alleles in the individual system. Within population diversity seems to be larger than between population diversity. The degree of over all genetic differentiation as measured by Gs~ value is 0.0154+0.0071.

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Section: The Distributionsupporting

confidence: 76%

Study of enzyme polymorphism and haemoglobin patterns amongst sixteen tribal populations of central India (Orissa, Madhya Pradesh, and Maharashtra)

et al. 1993

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“…Omoto and Blake (1972) described a similar variant in a Chinese of Singapore. In the present investigation no variant of type 2-1 was found, but there are reports of one example in each of the nontribal groups of Andhra and a frequency of the P G I ~ allele of 1.2~ from Christians of Kerala (Ramesh et al, 1979(Ramesh et al, , 1980Saha et al, 1976). This suggests localisation of the allele to specific populations of south India.…”

Section: A) the P G I 2 Allelecontrasting

confidence: 56%

Population genetic study of red cell enzyme phosphoglucose isomerase in India

Papiha

Chahal

1984

Jap J Human Genet

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SummaryThe distribution of red cell enzyme phosphoglucose isomerase was studied by starch gel electrophoresis in 27 different endogamous groups of India. Forty one electrophoretic variants belonging to four out of the nine known heterozygote types and one rare homozygous variant (PGI-3) were found. Comparison of the results with in India and certain other populations showed that PGI is certainly another useful genetic parameter for the study of population diversity in Asia.Inherited variation of the enzyme phosphoglucose isomerase [PGI; o~-D-glucose 6-phosphate ketol isomerase; EC 5.3.1.9] was initially described by Detter et al. (1968), the enzyme being referred to as phosphohexose isomerase. Since this discovery there have been reports of rare genetically determined variants or variants with low catalytic activities from various populations of the world Fitch et al., 1968;Paglia et al., 1969;Shinoda, 1970; Tariverdian et aI., 1970;Welch 1971;Luan Eng and Welch, 1972;Sanpitak et aL, 1973; Nakashima et aI., 1973;Isacchi et al., 1979), most of which concerns the sporadic occurrence of one or two of the nine heterozygotic types originally described in addition to the usual homozygous phenotype PGI-1. The exceptions are the heterozygous phenotypes PGI 3-1 and 4-1 which are of particular interest in Asiatic populations. In both the studies from London (Detter et al., 1968;Welch, 1971) the Asiatic Indians showed an appreciable frequency of the variant PGI 3-1 and subsequent studies of indigenous samples confirmed that the PGI a allele attains polymorphic frequencies in certain populations of India. Indeed, the relatively high frequency of this allele led to the detection of the homozygous phenotype PGI-3 (Papiha et aL, 1974). Ishimoto and Kuwata (1974) compiled the PGI studies in Japan and showed that in Japanese PGI 4-1 variant is more frequent than the other known heterozygous variants. This relatively high frequency of the PGI 4 allele in Japan consistent with the previous studies of Shinoda (1970), also led to the finding of a rare

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“…In addition, dur ing recent years an increasing amount of work has been carried out on tribal popula tions in Andhra Pradesh [Rwo et al, 1978;Ramesh et al, 1979] and several further studies are currently in progress. Data on the ABO blood group system for Chenchus from the Farhabad Hills were presented by Maefarlane and Sarkar [1941], but the most important study was that of Simmons et al [1953] who reported extensive blood group data, secretor status and the ability to taste phenyl thiocarbamide for the Chenchu from the Guntur and Kurnool districts.…”

Section: Introductionmentioning

confidence: 99%

Genetic Studies on the Chenchu Tribe of Andhra Pradesh, India

Ramesh¹,

Blake²,

Vijayakumar³

et al. 1980

Hum Hered

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A total of almost 200 members of a tribal group, the Chenchu from the Maha-bubnagar and Kurnool districts of Andhra Pradesh, have been tested for electrophoretic variation in a number of red cell enzyme systems. The former population has also been tested for ABO, MN and Rh blood group systems and for the serum proteins Hp, Tf and albumin. The most significant findings were the presence of the gene r^y, and the occurrence of a polymorphism in PHI with the variant gene PHI⁵ having a gene frequency of 4%.

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Genetic Studies on the Kolams of Andhra Pradesh, India

Cited by 14 publications

References 12 publications

Study of enzyme polymorphism and haemoglobin patterns amongst sixteen tribal populations of central India (Orissa, Madhya Pradesh, and Maharashtra)

Study of enzyme polymorphism and haemoglobin patterns amongst sixteen tribal populations of central India (Orissa, Madhya Pradesh, and Maharashtra)

Population genetic study of red cell enzyme phosphoglucose isomerase in India

Genetic Studies on the Chenchu Tribe of Andhra Pradesh, India

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