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Heterogeneity of the O alleles at the blood group ABO locus in Amerindians

På svenska

Author

Summary, in English

BACKGROUND AND OBJECTIVES: Amerindians are blood group O, but the distribution of the various O alleles is unknown. Their ABO genotypes were compared with samples from other Brazilian ethnic groups. MATERIALS AND METHODS: Genomic DNA was examined by PCR-RFLP analysis, PCR-SSP and direct sequencing. RESULTS: An unusual allele distribution was found, with 91% of the O alleles being O1variant. Almost half of these alleles had an additional novel mutation (G542A), which was also detected in a few other Brazilian and European samples. The O alleles correlated completely with ABO-related haplotypes previously determined by Southern blot. CONCLUSION: The three Amerindian tribes represent a homogeneous (ABO blood group) population, except for the G542A mutation. The presence of this mutation in all other populations examined suggests that it originated before the migration of man into America.

Publishing year

1998

Language

English

Pages

46-50

Publication/Series

Vox Sanguinis

Volume

74

Issue

1

Document type

Journal article

Publisher

Wiley-Blackwell

Topic

  • Hematology

Status

Published

Research group

  • Transfusion Medicine

ISBN/ISSN/Other

  • ISSN: 1423-0410