Ghosh A K, Kirk R L, Joshi S R, Bhatia H M
Hum Hered. 1977;27(4):225-41. doi: 10.1159/000152873.
A population genetic study among the Kota of the Nilgiri Hills, South India, involved tests for abnormal haemoglobins, 5 red cell antigen systems, 4 serum protein and 13 red cell enzymes systems. Twelve systems are invariant in the Kota. The most distinctive characteristics are extremely low frequency of the A1 gene and complete absence of A2 in the ABO system, r(cde) in the Rh system, LDH cal-1 among the enzyme systems as well as absence of abnormal haemoglobins. A comparison of gene frequencies in those systems, which show variation, suggests that the Kota are more similar to the Toda than to any other tribal or caste population of the area. Genetic distance as well principal component analysis also reveals that the Toda and Kota are close to each other, in agreement with tradition.
一项针对印度南部尼尔吉里丘陵地区科塔人的群体遗传学研究，涉及对异常血红蛋白、5种红细胞抗原系统、4种血清蛋白和13种红细胞酶系统的检测。在科塔人中，有12个系统是不变的。最显著的特征是ABO系统中A1基因频率极低且完全没有A2基因，Rh系统中没有r(cde)，酶系统中没有LDH cal-1，同时也没有异常血红蛋白。对那些表现出变异的系统中的基因频率进行比较表明，科塔人与托达人比该地区的任何其他部落或种姓群体更为相似。遗传距离以及主成分分析也表明，托达人和科塔人彼此接近，这与传统观点一致。
