Hill people of northern thailand same geographic

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Unformatted text preview: he rule? • Hill People of Northern Thailand – Same geographic region – Speak related Sino Tibetan languages – Practice similar modes of agriculture • Approach: • Reduced genetic diversity in markers carried by the sex that stays in their natal home – Compare genetic diversity on mtDNA and Y chromosome for matrilocal and patrilocal ethnic groups in the same region. • Greater genetic diversity in markers carried by the sex that moves to their partner s natal home • Trends are concordant for matrilocal and patrilocal dispersal 31 Oota, H., W. Settheetham Ishida, D. Tiwawech, T. Ishida, & M. Stoneking. 2001. Human mtDNA and Y chromosome variation is correlated with matrilocal versus patrilocal residence. Nature Genetics 29, 20 – 21. 32 -Patrilocal societies show more variation in mtDNA because t hey have many different,varying females coming into their p opulation carrying different mtDNA -Likewise, matrilocal societies show more variation in Y c hromosomes because they have many different, varying males c oming into their population carrying different Y's -Likewise, patrilocal societies show low genetic diversity at Y (same males staying in the same place = no variation) -Matriarchal societies show low genetic diversity at mtDNA (same females staying in the same place = no variation) 8 25/02/2013 General conclusions • We can use genetic markers to understand fitness components (mating and paternity) and illuminate the evolutionary process in long lived organisms • We can combine our knowledge of how the genome is transmitted with our knowledge of behavior to understand genetic differences in migratory wolves • Human social behavior will affect patterns of genetic differentiation and diversity among and within populations 33 9...
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This document was uploaded on 01/27/2014.

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