Genetic structure of the ethnic populations Lua and H’tin in Northern Thailand
DOI:
https://doi.org/10.14456/tjg.2010.2Keywords:
Lua, H’tin, genetic structure, Y-chromosomal microsatellite, mtDNAAbstract
The Lua are recognized as the first modern inhabitants of Northern Thailand and play an important role in Northern Thai history. There is no evidence stating that the Lua are in the Nan province, the place where the H’tin, who migrated from Laos, reside. The objectives of this study are to depict whether the Lua in Nan are the same ethnicity as the ancient Lua in northern Thai history, or they are the H’tin who call themselves. Lua; and to investigate the genetic structure between males and females of studied populations and the factors affecting their structure, employing the Y-chromosomal microsatellites and mtDNA as markers. The studied populations comprise 4 Lua subgroups from Mae Hong Son (Lua-1), Chiang Mai (Lua-2), and Nan (Lua-3 and Lua-4) provinces, as well as 3 H’tin subgroups from Nan: the Mai (H’tin-1), and Prai (H’tin-2, H’tin-3). The results revealed that the genetic structures of the Lua in Nan differed from the ancient Lua, hence they should not be the same ethnic group. The Lua-3 from Nan could be the same ethnicity as H’tin-1 (Mal), while the Lua-4 could be the same ethnicity as H’tin-3 and H’tin-4 (Prai). Furthermore, the sex-biased genetic structure in the studied populations was observed. The difference in post-marital residence, geography, language, as well as founder effect and/or inbreeding suggested the integrated effect on the genetic structure of the studied populations.
References
ชลธิรา สัตยาวัฒนา. 2530. ลัวะเมืองน่าน. สำนักพิมพ์เมืองโบราณ กรุงเทพฯ
บุญช่วย ศรีสวัสดิ์. 2545. ชาวเขาในไทย. สำนักพิมพ์มติชน. กรุงเทพฯ
ภัททิยา ยิมเรวัต และ สุริยา รัตนกุล. 2541. สารานุกรมชาติพันธุ์: ลัวะ. สถาบันวิจัยภาษาและวัฒนธรรม เพื่อพัฒนาชนบท มหาวิทยาลัยมหิดล. กรุงเทพฯ
สรัสวดี อ๋องสกุล. 2544. ประวัติศาสตร์ล้านนา. สำนักพิมพ์อมรินทร์ กรุงเทพฯ
สุริยา รัตนกุล. 2527. “ละว้า และ ลัวะ”. วารสารภาษาและวัฒนธรรม 4: 56-78.
Ayub, Q., Mohyuddin, A., Qamar, R., Mazhar, K., Zerjal, T., Mehdi, S.Q. and Tyler-Smith C. 2000. Identification and characterization of novel human Y-chromosomal microsatellites from sequence database information. Nucleic Acids Res 28: e8.
Cavalli-Sforza, L. L., Menozzi, P. and Piazza, A. 1994. The History and Geography of Human Genes. Princeton University Press, New Jersey.
Corander, J., Waldmann, P. and Sillanpää, M.J. 2003. Bayesian analysis of genetic differentiation between populations. Genetics 163: 367-74.
Corander, J. and Tang, J. 2007. Bayesian analysis of population structure based on linked molecular information. Math Biosci 205: 19-31.
Corander, J., Marttinen, P., Sirén, J. and Tang, J. 2008. Enhanced Bayesian modelling in BAPS software for learning genetic structures of populations. BMC Bioinfor 9: 539.
Excoffier, L., Smouse, P. and Wuattro, J. 1992. Analysis of molecular variance inferred from metric distance among DNA haplotypes: application to human mitochondrial DNA restriction data. Genetics 131: 479-491.
Excoffier, L., Laval, G. and Schneider, S. 2005. Arlequin ver. 3.0: an integrated software package for population genetics data analysis. Evolution Bioinfor Online 1: 47-50.
Kutanan, W., Kampuansai, J., Srikummool, M., Trisonthi, C. and Kangwanpong, D. 2007. Does the Lua in Nan Province exist? Investigated by genetic evidence. Proceeding of the 15th National Genetics Conference, 23-25 May 2007, Songkha, Thailand: 98-102.
Lewis, M. P. 2009. Ethnologue: Languages of the World. 16th ed SIL International, Texas. Online version: http://www.ethnologue.com.
Mantel, N. 1967. The detection of disease clustering and a generalized regression approach. Cancer Res 27: 209-220.
Nahhas, R.W. 2007. Sociolinguistic Survey of Lawa in Thailand. Survey Unit Department of Linguistics Faculty of Humanities Payap University. Chiang Mai.
Nei, M. 1987. Molecular Evolutionary Genetics. Columbia University Press, New York.
Schliesinger, J. 2000. Ethnic Groups of Thailand: Non-Tai Speaking Peoples. White Lotus Press, Bangkok.
Srikummool, M. 2005. X-, Y-Chromosomal and Mitochondrial DNA Variations of the Karen, Hmong, and Iu Mien in the Upper Northern Part of Thailand. Ph.D Thesis, Chiang Mai University.
Tamura, K., Dudley, J., Nei, M. and Kumar, S. 2007. MEGA4: Molecular evolutionary genetics analysis (MEGA) software version 4.0. Mol Biol Evol 24: 596-1599.
Thomas, M.G., Bradman, N. and Flinn, H.M. 1999. High throughput analysis of 10 microsatellite and 11 diallelic polymorphisms on the human Y-chromosome. Hum Genet 105: 577-581.
White, P.S., Tatum, O.L., Deaven, L.L. and Longmire, J.L. 1999. New, male-specific microsatellite markers from the human Y chromosome. Genomics 57: 433-437.
