We review studies of genomic data obtained by sequencing hominin fossils with particular emphasis on the unique information that ancient DNA (aDNA) can provide about the demographic history of humans and our closest relatives. We concentrate on nuclear genomic sequences that have been published in the past few years....
Haplogroup A2 is an Native Americas branch on the maternal tree of human kind. The woman who founded this line lived between 13,900 and 17,400 years ago (Behar et al 2012b).
Haplogroup B2 is a branch on the maternal tree of human kind. Its age is between 14,200 and 19,400 years (Behar et al., 2012b).
Haplogroup A is a branch on the maternal tree of human kind. It is a child of major haplogroup N. It was likely born in East Asia around 24,000 years ago. (Behar et al., 2012b). Through historic travels, members of this line live across East Asia and the Americas.
Reconciling migration models to the Americas with the variation of North American native mitogenomes
In this study we evaluated migration models to the Americas by using the information contained in native mitochondrial genomes (mitogenomes) from North America.