 The population believed to have the highest proportion of R-M343(xM73,M269,V88) are the Kurds of southeastern Kazakhstan with 13%.However, more recently, a large study of Y-chromosome variation in Iran, revealed R-M343(xV88,M73,M269) as high as 4.3% among Iranian sub-populations.R1b subclades have also been found in Han Chinese from Shandong, Heilongjiang and Gansu provinces.