Keywords: PCA of Haplogroup J from 6 STRs.png Principal Component Analysis plot for 354 Y-chromosome haplotypes from the public Ysearch database identified as belonging to Y-DNA Haplogroup J and its subgroups Data represent first and second most significant components calculated from 6 Y-STR markers <br /><br />Unlike the corresponding image obtained using 37 STR markers with only six markers the different J1 J2 and J2b subhaplogroups are not well resolved Own work PCA calculated in R plotted using Excel 2008-02-26 User Jheald Population genetics Principal component analysis |