Population genetics of coagulation factor XIIIB in three ethnic groups of Singapore

Autor: John S. H. Tay, J.B. Basair, Nilmani Saha, P.S. Low
Rok vydání: 1992
Předmět:
Zdroj: Annals of Human Biology. 19:277-283
ISSN: 1464-5033
0301-4460
DOI: 10.1080/03014469200002142
Popis: SummaryThe distribution of plasma coagulation factor XXIIB polymorphism was determined by PAG isoelectirc focusing and immunoblotting in a group of 670 subjects comprising 375 Chinese, 110 Malays and 185 Indians. The frequencies of FXIIIB*1, FXIIIB*2, and FXIIIB*3 were found to be 0·27, 0·03 and 0·70 in the Chinese; 0·33, 0·05 and 0·64 in the Malays and 0·58, 0·08 and 0·33 in the Indians. The phenotypic distribution of FXIIIB alleles was at Hardy-Weinberg equilibrium in all three populations. A two-dimensional principal-components analysis on the basis of three common alleles at the FXIIIB locus among 19 populations, so far studied, clearly differentiates the Negroid, Mongoloid and Caucasoid populations into three major groups with the exception of Amerindians (Minnesota) and US Blacks showing some Caucasoid influence.
Databáze: OpenAIRE