New HLA-B locus alleles have been found in South American Amerindian populations but were largely absent in North American Amerindian tribes also descended from this first Paleo-Indian migration. We have now extended these studies to the Navajo, descendants of the second Nadene migration. No new functional alleles were found at the B locus of this tribe. This limited study supports the notion that while new B locus variants are common in South American Amerindians, it is more difficult to find new B locus alleles in North American native peoples. Whether this dichotomy is due to differences in pathogen environment and/or population structures between North and South America remains a subject of speculation.
|Original language||English (US)|
|Number of pages||4|
|State||Published - Jan 1 1996|
- HLA-B locus alleles
- North and South American Amerindian
ASJC Scopus subject areas
- Cell Biology