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. 2003 Sep;165(1):229-34.
doi: 10.1093/genetics/165.1.229.

Rare deep-rooting Y chromosome lineages in humans: lessons for phylogeography

Michael E Weale  1 , Tina Shah, Abigail L Jones, John Greenhalgh, James F Wilson, Pagbajabyn Nymadawa, David Zeitlin, Bruce A Connell, Neil Bradman, Mark G Thomas
Affiliations

Rare deep-rooting Y chromosome lineages in humans: lessons for phylogeography

Michael E Weale et al. Genetics. 2003 Sep.

Abstract

There has been considerable debate on the geographic origin of the human Y chromosome Alu polymorphism (YAP). Here we report a new, very rare deep-rooting haplogroup within the YAP clade, together with data on other deep-rooting YAP clades. The new haplogroup, found so far in only five Nigerians, is the least-derived YAP haplogroup according to currently known binary markers. However, because the interior branching order of the Y chromosome genealogical tree remains unknown, it is impossible to impute the origin of the YAP clade with certainty. We discuss the problems presented by rare deep-rooting lineages for Y chromosome phylogeography.

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