Editing Archaeogenetics (section)

==== Americas ====
{{further|Genetic history of Indigenous peoples of the Americas}}
Archaeogenetics has been used to better understand the populating of the Americas from Asia.<ref name=":5">{{Cite journal|last1=O'Rourke|first1=Dennis H.|last2=Raff|first2=Jennifer A.|author-link2=Jennifer Raff|date=2010-02-23|title=The Human Genetic History of the Americas: The Final Frontier|journal=Current Biology|language=en|volume=20|issue=4|pages=R202–07|doi=10.1016/j.cub.2009.11.051|pmid=20178768|s2cid=14479088|issn=0960-9822|doi-access=free}}</ref> Native American mtDNA haplogroups have been estimated to be between 15 and 20 kya, although there is some variation in these estimates.<ref name=":5" /> Genetic data has been used to propose various theories regarding how the Americas were colonized.<ref name=":5" /> Although the most widely held theory suggests “three waves” of migration after the LGM through the Bering Strait, genetic data have given rise to alternative hypotheses.<ref name=":5" /> For example, one hypothesis proposes a migration from Siberia to South America 20–15 kya and a second migration that occurred after glacial recession.<ref name=":5" /> Y-chromosome data has led some to hold that there was a single migration starting from the Altai Mountains of Siberia between 17.2 and 10.1 kya, after the LGM.<ref name=":5" /> Analysis of both mtDNA and Y-chromosome DNA reveals evidence of “small, founding populations.”<ref name=":5" /> Studying haplogroups has led some scientists to conclude that a southern migration into the Americas from one small population was impossible, although separate analysis has found that such a model is feasible if such a migration happened along the coasts.<ref name=":5" />