Genetic Relationships between Indian Populations and Their Neighbors

Roychoudhury, A. K.

doi:10.1007/978-1-4899-5001-7_13

Cited by 8 publications

(8 citation statements)

References 22 publications

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“…This result is consistent with Roychoudhury's (1984) analysis of gene diversity in India on a global basis. While one may infer that the tribes exchange much smaller numbers of genes among them in comparison to the caste groups, a n alternative explanation is that the traditional grouping of Indian populations on the basis of caste hierarchy is not in accordance with the proximity of their gene pools.…”

Section: Fst Analysissupporting

confidence: 93%

“…Note that our findings that the Jalia Kaibartas are close to the high-caste groups, in spite of their low soical ranking, are supported by the fact of their ethnohistoric relationship with the high-caste groups (Dutt, 1969). Roychoudhury (1984) also noted that two segments of Bagdis (Duley and Tentulia Bagdis) have close genetic proximity with the Rarhi Brahmins. His study however, does not include the Vaidyas for comparison.…”

Section: Discussionmentioning

confidence: 93%

“…The Mundas and Lodhas have a comparatively higher frequency (25 and 29%) of the A allele; in them, the B allele also reaches a high frequency (23 and 28%). These characteristics are typical of the Dravidian populations of India (Roychoudhury, 1984), but they also exhibit a high frequency of the Grn1y5 haplotype (46 and 64%), suggesting that they too may have Mongoloid admixture. Any general conclusion from the trends of single allele frequencies can, however, be misleading since individual allele frequencies are known to be perturbed by past generations of random drift.…”

Section: Allele Frequency Heterogeneity Among the Ten Populationsmentioning

confidence: 93%

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Gene differentiation among ten endogamous groups of West Bengal, India

Chakraborty¹,

Walter

Mukherjee

et al. 1986

American J Phys Anthropol

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Ten endogamous populations of West Bengal, India have been surveyed for genetic variation in 12 systems. These populations encompass all social ranks in the caste hierarchy and cover almost the entire geographic area of the state. Gene diversity analysis suggests that these groups exhibit significant allele frequency variation at all but three loci. The overall genetic difference is not, however, in accord with the classification based on caste. Two low-ranking scheduled caste groups are, in fact, in close proximity with the high-caste ones, suggesting evidence of past generations of gene flow among them. Three different clusters of groups emerge from the present data, providing support for the anthropologic assertion that in Bengal Proto-Australoid, Caucasoid, and Mongoloid racial elements generally coexist. However, these three components are not uniformly present in all groups. Geographic separation of the groups is a strong determinant of the gene differentiation that exists among these populations.

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Section: Fst Analysissupporting

confidence: 93%

Section: Discussionmentioning

confidence: 93%

Section: Allele Frequency Heterogeneity Among the Ten Populationsmentioning

confidence: 93%

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Gene differentiation among ten endogamous groups of West Bengal, India

Chakraborty¹,

Walter

Mukherjee

et al. 1986

American J Phys Anthropol

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“…Genetic variation among Indian caste populations has long been a topic of interest (Dobzhansky 1973;Chakraborty et al 1977;Dobzhansky 1973;Roychoudhury 1982). Because castes are highly endogamous, and because men and women of different castes may be more likely to marry if their castes are of similar social status, it is reasonable to hypothesize that inter-caste genetic distances may be correlated with similarity in caste status.…”

Section: Discussionmentioning

confidence: 99%

Directional migration in the Hindu castes: inferences from mitochondrial, autosomal and Y-chromosomal data

et al. 2004

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Genetic, ethnographic, and historical evidence suggests that the Hindu castes have been highly endogamous for several thousand years and that, when movement between castes does occur, it typically consists of females joining castes of higher social status. However, little is known about migration rates in these populations or the extent to which migration occurs between caste groups of low, middle, and high social status. To investigate these aspects of migration, we analyzed the largest collection of genetic markers collected to date in Hindu caste populations. These data included 45 newly typed autosomal short tandem repeat polymorphisms (STRPs), 411 bp of mitochondrial DNA sequence, and 43 Y-chromosomal single-nucleotide polymorphisms that were assayed in more than 200 individuals of known caste status sampled in Andrah Pradesh, in South India. Application of recently developed likelihood-based analyses to this dataset enabled us to obtain genetically derived estimates of intercaste migration rates. STRPs indicated migration rates of 1-2% per generation between high-, middle-, and low-status caste groups. We also found support for the hypothesis that rates of gene flow differ between maternally and paternally inherited genes. Migration rates were substantially higher in maternally than in paternally inherited markers. In addition, while prevailing patterns of migration involved movement between castes of similar rank, paternally inherited markers in the low-status castes were most likely to move into high-status castes. Our findings support earlier evidence that the caste system has been a significant, long-term source of population structuring in South Indian Hindu populations, and that patterns of migration differ between males and females.

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“…This knowledge is useful in understanding their relative contributions in forming the genetic make-up of the current Indian subconti nent populations. Roychoudhury [1983] studied the genetic relationships of four populations from northern, southern, east ern and western India with their six neigh boring populations. His results suggest that Indian subcontinent populations are closer to Iranians and Afghans (Caucasoid) than to the Malays and Chinese (Mongoloid).…”

Section: Introductionmentioning

confidence: 99%

Genetic Relationships between Indians and Their Neighboring Populations

Roychoudhury¹,

Nei²

1985

Hum Hered

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Using gene frequency data for 18 protein and blood group loci, we studied the genetic relationships of four Indian subcontinent populations (peoples from Punjab, Gujarati, Andhra Pradesh, and Bangladesh) with their neighboring populations (Iranians, Afghans, Sinhalese in Sri Lanka, Nepalese, Bhutanese, Malays, Bataks in northern Sumatra, and Chinese). The results obtained indicate that the four Indian subcontinent populations and the Sinhalese are genetically closer to Iranians and Afghans (Caucasoid) than to the other neighboring Mongoloid populations. Genetic distance analysis shows a clear-cut dichotomy between the Caucasoid and Mongoloid populations.

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Genetic Relationships between Indian Populations and Their Neighbors

Cited by 8 publications

References 22 publications

Gene differentiation among ten endogamous groups of West Bengal, India

Gene differentiation among ten endogamous groups of West Bengal, India

Directional migration in the Hindu castes: inferences from mitochondrial, autosomal and Y-chromosomal data

Genetic Relationships between Indians and Their Neighboring Populations

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