Haplogroup G-P303
In human genetics, Haplogroup G-P303 (G2a2b2a, formerly G2a3b1) is a Y-chromosome haplogroup. It is a branch of haplogroup G (Y-DNA) (M201). In descending order, G-P303 is additionally a branch of G2 (P287), G2a (P15), G2a2, G2a2b, G2a2b2, and finally G2a2b2a. This haplogroup represents the majority of haplogroup G men in most areas of Europe west of Russia and the Black Sea. To the east, G-P303 is found among G persons across the Middle East, Iran, the southern Caucasus area, China, and India. G-P303 exhibits its highest diversity in the Levant.
| Haplogroup G-P303 (G2a2b2a) | |
|---|---|
| Possible time of origin | more than 11,000 years BP |
| Possible place of origin | Perhaps Caucasus or Iran |
| Ancestor | Haplogroup G2a2b2 (CTS2488) |
| Descendants | G2a2b2a1, G2a2b2a2, G2a2b2a3, G2a2b2a4 |
| Defining mutations | P303 or S135 (G2a2b2a) |
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