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Genetics, Vol. 165, 229-234, September 2003, Copyright © 2003

Rare Deep-Rooting Y Chromosome Lineages in Humans: Lessons for Phylogeography

Michael E. Wealea, Tina Shaha, Abigail L. Jonesa, John Greenhalgha, James F. Wilsonb, Pagbajabyn Nymadawac, David Zeitlind, Bruce A. Connelle, Neil Bradmana, and Mark G. Thomasa
a The Centre for Genetic Anthropology, Department of Biology, University College, London WC1E 6BT, United Kingdom,
b Department of Biology, University College, London WC1E 6BT, United Kingdom,
c Subassembly of Medical Sciences, Mongolian Academy of Sciences, Ulaanbaatar-13, Mongolia,
d Centre for Social Anthropology and Computing, Department of Anthropology, University of Kent, Canterbury CT2 7NS, United Kingdom
e Department of Languages, Literatures and Linguistics, York University, Toronto, Ontario M3J 1P3, Canada

Corresponding author: Mark G. Thomas, Department of Biology, University College, Gower St., London WC1E 6BT, United Kingdom., m.thomas{at}ucl.ac.uk (E-mail)

Communicating editor: Z. YANG

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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Copyright © 2003 by the Genetics Society of America.