Zhejiang was the site of the Neolithic cultures of the Hemudu and Liangzhu. A 2007 analysis of the DNA recovered from human remains in the archeological sites of prehistoric peoples along the Yangtze River shows high frequencies of haplogroup O1 in the Liangzhu culture, linking them to Austronesian and Tai-Kadai peoples.
Try to answer this question if possible (otherwise reply "unanswerable"): What haplogroup did a DNA analysis of the Liangzhu culture not reveal?
unanswerable