<span style="&quot;color:" rgb(51,="" 51,="" 51);="" font-family:="" arial,="" helvetica,="" 'ＭＳ="" Ｐゴシック',="" ゴシック',="" osaka,="" 'ms="" pgothic',="" sans-serif;="" font-size:="" 14.495px;="" line-height:="" 23.9167px;"="">kya, around the Last Glacial Maximum. CHG genomes significantly contributed to the Yamnaya steppe herders who migrated into Europe ~3,000 BC, supporting a formative Caucasus influence on this important Early Bronze age culture. CHG left their imprint on modern populations from the Caucasus and also central and south Asia possibly marking the arrival of Indo-Aryan languages.

Scourse: http://www.nature.com/ncomms/2015/151116/ncomms9912/full/ncomms9912.html