Ancient DNA analysis of three individuals dated to ~3000 years before present (BP) from Vanuatu and one ~2600 BP individual from Tonga has revealed that the first inhabitants of Remote Oceania (“First Remote Oceanians”) were almost entirely of East Asian ancestry, and thus their ancestors passed New Guinea, the Bismarck Archipelago, and the Solomon Islands with minimal admixture with the Papuan groups they encountered . However, all present-day populations in Near and Remote Oceania harbor 25-100% Papuan ancestry, implying that there must have been at least one later stream of migration eastward from Near Oceania.
Discussions on the history and historiography of Australia's New England
Thursday, February 22, 2018
Papuans replace initial settlers in Oceania
Mark Lipson et al had an interesting paper, Population Turnover in Remote Oceania Shortly After Initial Settlement (bioRxiv preprint first posted online Feb. 19, 2018) on genetic mixtures in Oceania. The summary reads in part: