 The Haplogroup O1 (Y-DNA)a-M119 genetic marker is frequently detected in Native Taiwanese, northern Philippines and Polynesians, as well as some people in Indonesia, Malaysia and non-Austronesian populations in southern China.A 2007 analysis of the DNA recovered from human remains in archeological sites of prehistoric peoples along the Yangtze River in China also shows high frequencies of Haplogroup O1 in the Neolithic Liangzhu culture, linking them to Austronesian and Tai-Kadai peoples.The Liangzhu culture existed in coastal areas around the mouth of the Yangtze.