In archaeogenetics, Ancient Southern East Asian (ASEA), also known as Southern East Asian (sEA), is an ancestral lineage that is represented by individuals from Qihe Cave in Fujian (c. 12–8 kya) and Liangdao Island in the Taiwan Strait (c. 8 kya) as well as Guangxi (c. 9 kya). Ancient Southern East Asian ancestry significantly contributed to the genetic makeup of modern populations in East Asia, Mainland Southeast Asia, Insular Southeast Asia, and Oceania, and is commonly associated with the Neolithic expansion of early Austronesian and Austroasiatic speakers that occurred more than 4,000 years ago.
