Listed below are links to several key research papers that have made major contributions to our understanding of the ancestry of Native Americans and Polynesians.
Chacón-Duque et al. Nature Communications (2018)
Very large genomic study of admixture in over 6,500 Latin Americans. Small traces of Jewish admixture were detected across Central and South America but was found to have arrived at the same time as Spanish DNA. They failed to detect any trace of pre-Columbian Israelite DNA.
Jennifer Raff and Deborah Bolnick PaleoAmerica (2015)
Review of mtDNA lineage X2a research which demonstrates conclusively that it arrived among the original founding population that migrated from Asia about 20,000 years ago.
Garrett Hellenthal et al, Science (2014)
Remarkable demonstration of the power of whole genome analysis to reveal the timing of ancient admixture events between different populations. They identified over 100 global admixture events in the last 4,000 years of human history.
Discovery of four major founding mitochondrial DNA lineages in Native Americans.
Pontus Skoglund et al. Science (2015)
Discovery of traces of Australasian genomic DNA in Native Americans from the Amazon and surrounding regions.
Comprehensive genomic study revealing the island South East Asian origins of the Polynesians and their trail of migration leading back into Taiwan and the Philippines.