Northern Han
A 2011 Y-dna study found that 10% of Northern Han Chinese from eastern Gansu and 8.9% of Northern Han from western Henan had the Y-dna R1a1. In a 2014 paper, R1a1a has been detected in 1.8% (2/110) of Chinese samples. These two samples (R-M17, R-M198, R-M434, R-M458 for both) belonged to Han individuals from Fujian and Shanxi provinces.