Heterogeneity of the O alleles at the blood group ABO locus in Amerindians
Författare
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.
Publiceringsår
1998
Språk
Engelska
Sidor
46-50
Publikation/Tidskrift/Serie
Vox Sanguinis
Volym
74
Issue
1
Länkar
Dokumenttyp
Artikel i tidskrift
Förlag
Wiley-Blackwell
Ämne
- Hematology
Status
Published
Forskningsgrupp
- Transfusion Medicine
ISBN/ISSN/Övrigt
- ISSN: 1423-0410