Article
Geographic sampling scheme as a determinant of the major axis of genetic variation in principal components analysis.
Molecular biology and evolution - 1 Feb 2013
DeGiorgio Michael, Rosenberg Noah A
Abstract excerpt
Principal component (PC) maps, which plot the values of a given PC estimated on the basis of allele frequency variation at the geographic sampling locations of a set of populations, are often used to investigate the properties of past range expansions. Some studies have argued that in a range expansion, the axis of greatest variation (i.e., the first PC) is parallel to the axis of expansion. In contrast, others...
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