Gene and genotype frequencies for HLA-DQA1 in Caucasians and Mulattoes in Brazil.
J Forensic Sci
; 44(5): 1051-2, 1999 Sep.
Article
in En
| MEDLINE
| ID: mdl-10486957
ABSTRACT
Gene and genotype frequencies of the HLA-DQA1 locus were determined in a sample of 197 unrelated individuals (144 Caucasians and 53 Mulattoes), living in the city of São Paulo, Brazil. The Mulatto group consisted of mixed individuals who presented at least one negroid physical characteristic or declared themselves to be of mixed ancestry. A total of six different alleles were identified with frequencies ranging from 0.087 to 0.316 in the Caucasian population and from 0.066 to 0.330 in the Mulatto population. We observed an increased frequency of allele 1.2 among Mulattoes in relation to Caucasians. The sample heterozygote frequency was 0.722 among Caucasians and 0.736 among Mullatoes. No significant deviations from Hardy-Weinberg equilibrium were found either in the Caucasian or in the Brazilian Mullato population samples.
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Collection:
01-internacional
Database:
MEDLINE
Main subject:
HLA-DQ Antigens
/
Black People
/
White People
/
Alleles
Type of study:
Prognostic_studies
Limits:
Humans
Country/Region as subject:
America do sul
/
Brasil
Language:
En
Journal:
J Forensic Sci
Year:
1999
Document type:
Article
Affiliation country:
Brazil