April 13, 2012

Population structure of US Hispanics

Just a quick observation: the "Native American" components at K=4 and K=5 are probably partially Caucasoid. For example, at K=3, Puerto Ricans are 62% Caucasian, and this becomes 18% at K=5. This is due to the fact that the three "Native American" components at K=5 are actually mixes of a Caucasoid with a local Amerindian component.

As I explain here, ADMIXTURE increases the proportion of the "native" component in the absence of pure-blooded representatives of the indigenous inhabitants. Since the Taino are extinct, the "Native American 3" component is actually a hybrid of the Taino aborigines and Europeans.

PLoS Genet 8(4): e1002640. doi:10.1371/journal.pgen.1002640


Ani Manichaikul et al.



1 comment:

formerjerseyboy said...
