Blood Groups (A1A2BO, M-N, Rh) and ABH Secretion in the Pareng Gadaba, the Ollaro Gadaba and the Konda Paroja of Koraput District in Orissa

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Abstract
The basic data as well as the results of their analysis on the blood groups, ABO, M-N and Rh (anti-sera for C, c, D and E antigens), and ABH secretion in saliva among 3 aboriginal tribes of Koraput district, Orissa are presented in this paper. Earlier, 2 other tribes in the same region were investigated. Results and data for all the 5 have been compared among themselves and also with the other tribal and nontribal populations of India. The Pareng Gadaba, the Ollaro Gadaba and the Konda Paroja studied and discussed in this paper show 16-21% A,, 1-3% A2, 23-31% B. The M gene occurs in high frequencies 77-83%. The chromosome R1 (CDe) is again high 74-78%, R2(cDE) is between 5% to 10%, R0(cDe) is present in all the 3 4-13%, Rz(CDE) is also found but very low 2-3% and r(cde) is detected only in the Ollaro Gadaba and none at all in the other 2. In respect of the secretor gene distribution, the Ollato stands out significantly different from the rest, having the lowest Se frequency of 36%, whereas the Pareng and the Konda have 49% and 46% of it. The 3 tribes do not indicate wide enough genetic difference between them to place them in different ethnic groups, in-spite of their breeding in isolated tribal groups of many generations.

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