An Investigation of ABO Blood Groups and the Gene Frequencies among Miao and Buyi Ethnic Groups in Pingtang County

Objective: To get the information of ABO blood group distribution and the gene frequencies in Miao and Buyi in Pingtang county,Guizhou province.Methods: Glass slide smearing method was used for ABO blood type identification.Results: The ranks of ABO blood group freqencies and A,B,O gene frequencies of Miao were OABAB,and rpq respectively,and those of Buyi were OBAAB,and rqp.There was no difference of ABO blood group distribution between male and female in a same ethnic group of Miao or Buyi(P0.05),while statistical significance of ABO blood group freqencies occurred between Miao and Buyi(P 0.05).The observed and expected values of ABO blood group parameters in the two ethnic groups met Hardy-Weinberg equilibrium(P0.05).Conclusions: A higher O gene frequency exists in Miao and Buyi ethnic groups in Pingtang County,and shows a structural feature similar to other populations living in southern China.There are differences about the distribution of ABO blood groups among different ethnic groups.