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  1. Article ; Online: Genetic and linguistic non-correspondence suggests evidence for collective social climbing in the Kol tribe of South Asia.

    Srivastava, Anshika / Singh, Prajjval Pratap / Bandopadhyay, Audditiya / Singh, Pooja / Das, Debashruti / Tamang, Rakesh / Chaubey, Akhilesh Kumar / Shrivastava, Pankaj / van Driem, George / Chaubey, Gyaneshwer

    Scientific reports

    2020  Volume 10, Issue 1, Page(s) 5593

    Abstract: Both classical and recent genetic studies have unanimously concluded that the genetic landscape of South Asia is unique. At long distances the 'isolation-by-distance' model appears to correspond well with the genetic data, whereas at short distances ... ...

    Abstract Both classical and recent genetic studies have unanimously concluded that the genetic landscape of South Asia is unique. At long distances the 'isolation-by-distance' model appears to correspond well with the genetic data, whereas at short distances several other factors, including the caste, have been shown to be strong determinant factors. In addition with these, tribal populations speaking various languages add yet another layer of genetic complexity. The Kol are the third most populous tribal population in India, comprising communities speaking Austroasiatic languages of the Northern Munda branch. Yet, the Kol have not hitherto undergone in-depth genetic analysis. In the present study, we have analysed two Kol groups of central and western India for hundreds thousands of autosomal and several mitochondrial DNA makers to infer their fine genetic structure and affinities to other Eurasian populations. In contrast, with their known linguistic affinity, the Kol share their more recent common ancestry with the Indo-European and Dravidian speaking populations. The geographic-genetic neighbour tests at both the temporal and spatial levels have suggested some degree of excess allele sharing of Kol1 with Kol2, thereby indicating their common stock. Our extensive analysis on the Kol ethnic group shows South Asia to be a living genetics lab, where real-time tests can be performed on existing hypotheses.
    MeSH term(s) Alleles ; Asian Continental Ancestry Group/genetics ; Asian Continental Ancestry Group/statistics & numerical data ; DNA, Mitochondrial/genetics ; Ethnic Groups/genetics ; Ethnic Groups/psychology ; Ethnic Groups/statistics & numerical data ; Female ; Gene Flow/genetics ; Gene Frequency/genetics ; Genetic Markers/genetics ; Humans ; India ; Language ; Linguistics/methods ; Male
    Chemical Substances DNA, Mitochondrial ; Genetic Markers
    Language English
    Publishing date 2020-03-27
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-020-61941-z
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Estimation of real-infection and immunity against SARS-CoV-2 in Indian populations

    Singh, Prajjval Pratap / Tamang, Rakesh / Shukla, Manoj / Pathak, Abhishek / Srivastava, Anshika / Gupta, Pranav / Bhatt, Alay / Shrivastava, Abhishek K. / Upadhyay, Sudhir K. / Singh, Ashish / Maurya, Sanjeev / Saxena, Purnendu / Singh, Vanya / Chaubey, Akhilesh Kumar / Mishra, Dinesh Kumar / Patel, Yashvant / Pandey, Rudra Kumar / Srivastava, Ankit / Khanam, Nargis /
    Das, Debashruti / Bandopadhyay, Audditiya / Chorol, Urgyan / Pasupuleti, Nagarjuna / Kumar, Sachin / Prakash, Satya / Mishra, Astha / Dubey, Pavan Kumar / Parihar, Ajit / Basu, Priyoneel / Sequeira, Jaison J / KC, Lavanya / Vijayalaxmi, Vijayalaxmi / Bhat.K, Vishnu Shreekara / Ijinu, Thadiyan Parambil / Aggarwal, Dau Dayal / Prakash, Anand / Yadav, Kiran / Yadav, Anupam / Upadhyay, Vandana / Mukim, Gunjan / Bhandari, Ankan / Ghosh, Ankita / Kumar, Akash / Yadav, Vijay Kumar / Nigam, Kriti / Harshey, Abhimanyu / Das, Tanurup / Devadas, Deepa / Mishra, Surendra Pratap / Kumar, Ashish / Yadav, Abhay Kumar / Singh, Nitish Kumar / Kaur, Manpreet / Kumar, Sanjay / Srivastava, Nikhil / Sharma, Charu / Chowdhury, Ritabrata / Jain, Dharmendra / Kumar, Abhai / Shukla, Ritesh / Mishra, Raghav Kumar / Singh, Royana / Tripathi, Yamini B / Mishra, Vijay Nath / Mustak, Mohammed S. / Rai, Niraj / Rawat, Sumit Kumar / Survajhala, Prashant / singh, Keshav K / Mallick, Chandana Basu / Shrivastava, Pankaj / Chaubey, Gyaneshwer

    medRxiv

    Abstract: Infection born by Coronavirus SARS-CoV-2 has swept the world within a time of a few months. It has created a devastating effect on humanity with social and economic depressions. Europe and America were the hardest hit continents. India has also lost ... ...

    Abstract Infection born by Coronavirus SARS-CoV-2 has swept the world within a time of a few months. It has created a devastating effect on humanity with social and economic depressions. Europe and America were the hardest hit continents. India has also lost several lives, making the country fourth most deadly worldwide. However, the infection and death rate per million and the case fatality ratio in India were substantially lower than many of the developed nations. Several factors have been proposed including the genetics. One of the important facts is that a large chunk of Indian population is asymptomatic to the SARS-CoV-2 infection. Thus, the real infection in India is much higher than the reported number of cases. Therefore, the majority of people are already immune in the country. To understand the dynamics of real infection as well as level of immunity against SARS-CoV-2, we have performed antibody testing (serosurveillance) in the urban region of fourteen Indian districts encompassing six states. In our survey, the seroprevalence frequency varied between 0.01-0.48, suggesting high variability of viral transmission among states. We also found out that the cases reported by the Government were several fold lower than the real infection. This discrepancy is majorly driven by a higher number of asymptomatic cases. Overall, we suggest that with the high level of immunity developed against SARS-CoV-2 in the majority of the districts, it is less likely to have a second wave in India.
    Keywords covid19
    Language English
    Publishing date 2021-02-08
    Publisher Cold Spring Harbor Laboratory Press
    Document type Article ; Online
    DOI 10.1101/2021.02.05.21251118
    Database COVID19

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  3. Article ; Online: Unravelling the distinct strains of Tharu ancestry.

    Chaubey, Gyaneshwer / Singh, Manvendra / Crivellaro, Federica / Tamang, Rakesh / Nandan, Amrita / Singh, Kamayani / Sharma, Varun Kumar / Pathak, Ajai Kumar / Shah, Anish M / Sharma, Vishwas / Singh, Vipin Kumar / Selvi Rani, Deepa / Rai, Niraj / Kushniarevich, Alena / Ilumäe, Anne-Mai / Karmin, Monika / Phillip, Anand / Verma, Abhilasha / Prank, Erik /
    Singh, Vijay Kumar / Li, Blaise / Govindaraj, Periyasamy / Chaubey, Akhilesh Kumar / Dubey, Pavan Kumar / Reddy, Alla G / Premkumar, Kumpati / Vishnupriya, Satti / Pande, Veena / Parik, Jüri / Rootsi, Siiri / Endicott, Phillip / Metspalu, Mait / Lahr, Marta Mirazon / van Driem, George / Villems, Richard / Kivisild, Toomas / Singh, Lalji / Thangaraj, Kumarasamy

    European journal of human genetics : EJHG

    2014  Volume 22, Issue 12, Page(s) 1404–1412

    Abstract: The northern region of the Indian subcontinent is a vast landscape interlaced by diverse ecologies, for example, the Gangetic Plain and the Himalayas. A great number of ethnic groups are found there, displaying a multitude of languages and cultures. The ... ...

    Abstract The northern region of the Indian subcontinent is a vast landscape interlaced by diverse ecologies, for example, the Gangetic Plain and the Himalayas. A great number of ethnic groups are found there, displaying a multitude of languages and cultures. The Tharu is one of the largest and most linguistically diverse of such groups, scattered across the Tarai region of Nepal and bordering Indian states. Their origins are uncertain. Hypotheses have been advanced postulating shared ancestry with Austroasiatic, or Tibeto-Burman-speaking populations as well as aboriginal roots in the Tarai. Several Tharu groups speak a variety of Indo-Aryan languages, but have traditionally been described by ethnographers as representing East Asian phenotype. Their ancestry and intra-population diversity has previously been tested only for haploid (mitochondrial DNA and Y-chromosome) markers in a small portion of the population. This study presents the first systematic genetic survey of the Tharu from both Nepal and two Indian states of Uttarakhand and Uttar Pradesh, using genome-wide SNPs and haploid markers. We show that the Tharu have dual genetic ancestry as up to one-half of their gene pool is of East Asian origin. Within the South Asian proportion of the Tharu genetic ancestry, we see vestiges of their common origin in the north of the South Asian Subcontinent manifested by mitochondrial DNA haplogroup M43.
    MeSH term(s) Asian Continental Ancestry Group/genetics ; Chromosomes, Human, Y/genetics ; DNA, Mitochondrial/genetics ; Ethnic Groups/genetics ; Genetic Association Studies ; Genetic Variation ; Genotyping Techniques ; Haplotypes ; Humans ; India ; Nepal ; Phylogeography ; Polymorphism, Single Nucleotide ; Sequence Analysis, DNA
    Chemical Substances DNA, Mitochondrial
    Language English
    Publishing date 2014-03-26
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1141470-4
    ISSN 1476-5438 ; 1018-4813
    ISSN (online) 1476-5438
    ISSN 1018-4813
    DOI 10.1038/ejhg.2014.36
    Database MEDical Literature Analysis and Retrieval System OnLINE

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