贵州苗族5项遗传性状分析

Analyzing five genetic traits in the Miao Nationality from Guizhou

调查贵州苗族111例(男54例,女57例)耳垂、发旋、双手嵌合、酒窝和惯用手5项遗传性状的基因频率。在贵州苗族群体中耳垂的隐性基因频率高于显性基因频率;发旋在两性中分布存在极显著差异(P<0.01)。贵州苗族5对性状中,惯用手与其他性状间存在极显著相关性,而其他4对性状间不存在相关性(P>0.05);贵州苗族5项遗传性状的基因频率与国内其他地区汉族和少数民族存在差异,贵州苗族具有独特遗传性状特征。

This paper is to investigate the gene frequency of ear lobe type, hair vortex, hand clasping, dimple presence, and handedness of 111 （54 male and 57 female） college students belonging to the Miao nationality, Guizhou. The results showed that the recessive gene frequency of ear lobe type was higher than the dominant, and the distribution of hair vortex in males and females differed significantly （P〈0.01）. Handedness was relatively significant among the five genetic traits tested in this population, but other traits had no significant relationship （P〉0.05）. Gene frequency differences existed between the Miao in Guizhou and other nationalities or areas in China.