Archaeogenetics Archaeology of the Americas

a genetic tree of 18 world human groups neighbour-joining autosomal relationships.

molecular genetics study suggests surviving amerindian populations derived theoretical single founding population, possibly 50 70 genetic contributors preliminary research, restricted 9 genomic regions (or loci) have shown genetic link between original americas , asia populations. study not address question of separate migrations these groups, , excludes other dna data-sets.

the american journal of human genetics released article in 2007 stating here show, using 86 complete mitochondrial genomes, indigenous american haplogroups, including haplogroup x (mtdna), part of single founding population. amerindian groups in bering strait region exhibit perhaps strongest dna or mitochondrial dna relations siberian peoples. genetic diversity of amerindian indigenous groups increase distance assumed entry point americas. genetic diversity patterns west east suggest @ least coastal migration events. geneticists have variously estimated peoples of asia , americas part of same population 42,000 21,000 years ago.