A north Thai Y-haplotype database consisting of the loci DYS19, DXYS156-Y,
DYS390, DYS391, DYS392, DYS393, and the four subsegments of DYS389 is prese
nted. We observed 44 Y-types in 50 unrelated Thais, and the haplotype diver
sity was calculated to be 97.36%. No Y-types were shared with a sample of 5
5 Japanese, but 3 matches were found in a sample of 61 Han Chinese, and the
re was one Thai-German match in a larger west German sample (n = 179).