Genetic and Archaeological Evidences from South Pacific to Purepechas, Amerindians of Michoacan Mexico
'Purepechas' or 'Tarascans' is the main ethnic group of rural fishers and handicrafters of Michoacan State; 2% or 0.12% of amerindians/mexican people. Stay living in the same region since 3000 years ago and created Tarascan Empire (s.XII to XVI). They survived through 26 pandemics in 5 centuries.
To know his genetic structure, take 75 families through 4 generations each one, with really no-relationship registered from 2 communities and determined genetic markers serological and others molecularly. His cultural, archaeological and historic characteristics and features was compared with others groups.
Purepechas stay in Hardy-Weinberg equilibrium with 78% amerindian, 21% european and 1% african genetic mixture; others groups are little related. Great restriction and diversity simultaneously in HLA serologic haplotypes: A24,B40,Cw6,DR7,DQw3,DRw53,SC31 was commonest; there are from Asia (A2,B35,Cw4,DR4; DR2/DR4/DR8,DQw1 in 21%), Southamerica (DR3,DQw1 in 12.5%) and others by genetic mixture but 3% is A28/31,Bw48,Cw2/6,DR1/2/6/7,DQw3,DRw52/53 ¿from South Pacific?. Prior to 1300 b.C., El Opeño, plannified cemetery, shows influences in cosmovision, social organization, "sacred" fauna and flora, construction style, tools, costumes and jewellery, ceramics and others from at least three cultures: 2 asiatics (0.49), 1 ¿'Lapita'? from south Pacific (0.33) and unknown (0.18). Rear features but prior to s.XVI (when europeans and africans arrives) shown proportions of 0.48, 0.51 and 0.01 respectively.
Thus, Genetics shows ancient mixture, strongest natural selection and correlates with archaeologic and cultural features: by centuries was positive flow from South Pacific and/or sympatric populations of South America to ancestral founders of Purepechas.