Abstract:
This descriptive, prospective and analytical study that aimed to determine the
frequencies of Duffy antigens (Fya, Fyb), phenotypes, ABO blood group system
phenotypes and Rhesus (D) factor.
This study was conducted in Bunni Aamer tribe during the period of two
months, following informed consent, a total of 100 venous blood samples were
collected in 2.5 ml of blood EDTA container from unrelated individuals. The red
cells were tested for Duffy antigens (Fya, Fyb) by using the particle gel
immunodiffusion, for ABO blood group system and Rhesus (D) factor using slide
method and Du method for the negative results.
The study showed that the O phenotype was common with the frequency of
(58 %); followed by B phenotype with frequency of (21 %), A phenotype with
the frequency of (19 %) and AB phenotype with low frequency (2%).The Rhesus
(D) was high frequent (97%).
In Duffy blood group system the Fya antigen frequency was (14%), while the
Fyb antigen with the frequency was (19 %) among the study group. The
phenotype Fy (a-b-) frequency was (70 %), while the phenotype Fy (a-b+)
frequency was (16 %), while the phenotype Fy (a+b-) was (11 %), and the
phenotype Fy (a+b+) was (3%).
The result of this study were compared with the results of other Sudanese
ethnic groups it was found that there were similarity in some ABO blood group
and Rh (D) factor with the Arrakein, Alshokria, Danagala and Shaigia and there
were differences with the Halaween, Miseria and Nuba, while in the Duffy blood
group system there was no previous study in other Sudanese ethnic groups.
We conclude that the similarity between Sudanese tribes living in one area
resulting from intermarriage between them, while that there were differences
between the tribes living in different geographical area.
