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Thread: Taiwan aborigines are of Austronesian derivation

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    Post Taiwan aborigines are of Austronesian derivation

    Molecular analysis of mutations and polymorphisms of the Lewis secretor type !(1,2)-fucosyltransferase gene reveals that Taiwan aborigines are of Austronesian derivation


    J.-G. Chang A1, Y.-C. Ko A2, J. C.-I. Lee A3, S.-J. Chang A2, T.-C. Liu A4, M.-C. Shih A1, C.-T. Peng A1

    A1 Department of Laboratory Medicine, China Medical College Hospital 2, Yuh Der Road, Taichung, Taiwan Tel. +886-4-22052121, ext 1565; Fax +886-4-22033295 e-mail: d6781@www.cmch.org.tw
    A2 Department of Public Health, Kaohsiung Medical University, Kaohsiung, Taiwan
    A3 Department of Forensic Science, Central Police University, Taoyuan, Taiwan
    A4 Division of Hematology/Oncology, Department of Internal Medicine, Kaohsiung Medical College, Kaohsiung, Taiwan


    Abstract:


    Abstract The origins of the Taiwan aborigines have not been fully resolved. Anthropological and linguistic studies have indicated that their ancestry is mainly Austronesian or Malayopolynesian. Some polymorphisms and mutations in the secretor type !(1,2)-fucosyltransferase (FUT2) gene are found in Taiwan aborigines. In this study, we analyzed the frequency of eight mutations and one polymorphism of the FUT2 gene in Taiwan aborigines and other ethnic groups in order to explore the origins of these groups. The results showed that the C302T, G428A, and fusion gene mutations were specific for Thai, Caucasians, and Japanese, respectively. The A385T mutation was specific for Asians including Taiwan aborigines. The genetic frequencies of C571T were much higher in Taiwan aborigines (1.96% to 20.4%), Filipinos (13.2%), and Indonesians (3.30%) as compared with Thai (0.57%), Chinese (0.65% to 1.12%), Japanese (0%), and Caucasians (0%). The frequencies of the G849A mutation were also higher in Taiwan aborigines (0.38% to 21.57%), Filipinos (6.80%), and Indonesians (1.48%) than in Thai (0.94%), Chinese (0-0.37%), Japanese (0%), or Caucasians (0%). Deletion of a 3-bp region (nt 688 to nt 690) was found only in Filipinos (0.85%), Indonesians (0.74%), and three tribes (0.42% to 2.70%) of Taiwan aborigines, but not in other populations. The C628T mutation was found only in Taiwanese Han, Thai, and two tribes of Taiwan aborigines. The genetic frequency of the C357T polymorphism was much higher in Asians than in Caucasians. The genetic analysis confirms that the origins of Taiwan aborigines are Austronesian and that they are closely related to the Filipino and Indonesian populations. We suggest that mutations or polymorphisms of the FUT2 gene are very good markers for investigating population genetics.


    ( I will post the full article later...)

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    Post Re: Taiwan aborigines are of Austronesian derivation

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