Anthropological studies in Assam, India. 7. Socio-biological observations on Assamese population

Das, Bhuban Mohan; Das, Pranta; R, Das; Walter, H.; Danker‐Hopfe, Heidi

doi:10.1127/anthranz/47/1989/129

Cited by 3 publications

(3 citation statements)

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“…Previous studies assessing variation among classic alleles in the Sonowal Kachari and Rabha suggested that allele frequencies in both groups were similar to those previously reported in East Asian population samples (Das et al, ; Deka, ; Deka et al, ). The Ahom, however, often appeared intermediate to East Asians and Assamese Hindu Caste samples in their allele frequencies at these classical loci (Das et al, ).…”

Section: Discussionsupporting

confidence: 82%

“…The sample consisted of 128 individuals from the Northeast Indian state of Assam: 35 Tai Ahom, 42 Sonowal Kachari, and 51 Rabha. Blood samples were initially collected as part of a 1984 collaborative venture between research universities in India, Germany, and the United States (Das, Das, Das, Walter, & Danker‐Hopfe, ; Das & Deka, ; Das, Deka, & Flatz, ; Deka et al, ). These studies looked at allelic diversity in classical genetic markers (ABOs, MNS, Rhesus, Duffy, Diego, Hp Gc, Gm, Km, Tf, aP, EsD, AK, ADA, LDS, and HB‐variants).…”

Section: Methodsmentioning

confidence: 99%

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Understanding influences of culture and history on mtDNA variation and population structure in three populations from Assam, Northeast India

Rej

Deka

Norton

2017

American J Hum Biol

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Section: Discussionsupporting

confidence: 82%

Section: Methodsmentioning

confidence: 99%

Understanding influences of culture and history on mtDNA variation and population structure in three populations from Assam, Northeast India

Rej

Deka

Norton

2017

American J Hum Biol

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“…Additionally, numerous individuals from Assam are present within the second cluster. This cluster exhibits significant heterogeneity, as individuals have varying degrees of relatedness to EAS, indicative of the recent gene flow possibly related to the recent migration of East Asian tea plantation workers to India in the last two centuries 21 (Fig 1B). Our ADMIXTURE 13 analysis mirrors the patterns seen in PCA (Fig S4.6).…”

Section: Population Structure and Admixturementioning

confidence: 99%

50,000 years of Evolutionary History of India: Insights from ~2,700 Whole Genome Sequences

Kerdoncuff,

Skov,

Patterson

et al. 2024

Preprint

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India has been underrepresented in whole genome sequencing studies. We generated 2,762 high coverage genomes from India - including individuals from most geographic regions, speakers of all major languages, and tribal and caste groups - providing a comprehensive survey of genetic variation in India. With these data, we reconstruct the evolutionary history of India through space and time at fine scales. We show that most Indians derive ancestry from three ancestral groups related to ancient Iranian farmers, Eurasian Steppe pastoralists and South Asian hunter-gatherers. We uncover a common source of Iranian-related ancestry from early Neolithic cultures of Central Asia into the ancestors of Ancestral South Indians (ASI), Ancestral North Indians (ANI), Austro-asiatic-related and East Asian-related groups in India. Following these admixtures, India experienced a major demographic shift towards endogamy, resulting in extensive homozygosity and identity-by-descent sharing among individuals. At deep time scales, Indians derive around 1-2% of their ancestry from gene flow from archaic hominins, Neanderthals and Denisovans. By assembling the surviving fragments of archaic ancestry in modern Indians, we recover ~1.5 Gb (or 50%) of the introgressing Neanderthal and ~0.6 Gb (or 20%) of the introgressing Denisovan genomes, more than any other previous archaic ancestry study. Moreover, Indians have the largest variation in Neanderthal ancestry, as well as the highest amount of population-specific Neanderthal segments among worldwide groups. Finally, we demonstrate that most of the genetic variation in Indians stems from a single major migration out of Africa that occurred around 50,000 years ago, with minimal contribution from earlier migration waves. Together, these analyses provide a detailed view of the population history of India and underscore the value of expanding genomic surveys to diverse groups outside Europe.

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Reproductive profile of mothers in relation to hemoglobin E genotypes

Balgir

1992

Indian J Pediatr

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The reproductive profile of 190 Ahom-Kachari mothers belonging to Mongoloid ethnic stock of Assam has been studied in relation to hemoglobin (Hb) E genotypes. No significant variations have been observed in the reproductive performance between the normal population and abnormal hemoglobin homozygote (HbEE) and heterozygote (HbAE) mothers. However, the reproductive wastage among the hemoglobin homozygote (HbEE) mothers has been observed to be double than the normal hemoglobin (HbAA) and abnormal hemoglobin heterozygote (HbAE) mothers. The reproductive performance parameters have also been compared with the other available studies.

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Anthropological studies in Assam, India. 7. Socio-biological observations on Assamese population

Cited by 3 publications

References 0 publications

Understanding influences of culture and history on mtDNA variation and population structure in three populations from Assam, Northeast India

Understanding influences of culture and history on mtDNA variation and population structure in three populations from Assam, Northeast India

50,000 years of Evolutionary History of India: Insights from ~2,700 Whole Genome Sequences

Reproductive profile of mothers in relation to hemoglobin E genotypes

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