Haplogroup I2 (Y-DNA)
Y-DNA Haplogroup I2 represents one of the two branches of Haplogroup I (Y-DNA) as defined by the Y Chromosome Consortium (YCC2008).
From : Y-DNA Haplogroup I2 includes I2* which shows some membership from Armenia, Georgia and Turkey; I2a-P37.2, which is the most common form in the Balkans and Sardinia; I2a2-M26 is especially prevalent in Sardinia. I2b-M436 et al reaches its highest frequency along the northwest coast of continental Europe. I2b1-M223 et al occurs in Britain and northwest continental Europe. I2b1a-M284 occurs almost exclusively in Britain, so it apparently originated there and has probably been present for thousands of years.
Y-DNA Haplogroup I2 is now defined by two mutations: