[亻革]家人4对遗传性状的基因频率  

Genetic Frequencies of Four Hereditary Traits in the Gejia Ethnic Group

作　　者：龙思方[1] 王海萍 刘慧丹 龙友国[1] 余跃生[1] LONG Sifang;WANG Hai-ping;LIU Hui-dan;LONG You-guo;YU Yue-sheng(Qiannan Medical College for Nationalities,Duyun,558013,Guizhou;Qiannan Maternity and Child Healthcare Hospital,Duyun,558000,Guizhou;Guizhou Zhongrun Boda Forensic Testimony Institute,Duyun,558000,Guizhou)

机构地区：[1]黔南民族医学高等专科学校,贵州都匀558013 [2]黔南州妇幼保健院,贵州都匀558000 [3]贵州中润博达司法鉴定所,贵州都匀558000

出　　处：《黔南民族医专学报》2024年第4期477-480,共4页Journal of Qiannan Medical College for Nationalities

基　　金：贵州省卫计委黔南民族医学高等专科学校联合科研项目[黔卫计函(2015)7-1];黔南民族医学高等专科学校科研基金项目(QNYZ2020001);黔南民族医学高等专科学校科研基金项目(QNYZ201403);黔南民族医学高等专科学校科研基金项目(QNYZ201903)。

摘　　要：目的:探讨[亻革]家人群体遗传性状的基因频率分布特征。方法:采用学术界公认的调查方法对412名(男性217人,女性195人)世居贵州黄平县重安镇的[亻革]家人拇指类型、环食指长、中指毛和小指弯曲4对遗传性状进行形态学观察,将其显性基因频率与国内报道的其他民族群体进行比较和系统聚类分析。结果:[亻革]家人拇指类型、环食指长、中指毛和小指弯曲的显性基因频率分别为0.2761、0.0901、0.3159和0.2611,其中男性分别为0.2845、0.0840、0.3739和0.2686,女性分别为0.2665、0.0972、0.2557和0.2523;除中指毛外,其他3对遗传性状的显性基因频率性别间差异无统计学意义(P>0.05);与国内其他民族群体比较,[亻革]家人拇指类型和中指毛的显性基因频率属于中等偏下类型,环食指长和小指弯曲属于较低类型;聚类分析结果显示,[亻革]家人4对遗传性状与我国南方民族群体的遗传距离较近。结论:[亻革]家人4对遗传性状的基因频率分布特征,既具有我国南方族群的遗传特性,又存在自身的民族特点。Objective:To investigate the distribution characteristics of genetic frequencies of four hereditary traits in the Gejia ethnic group.Methods:Using academically recognized survey methods,morphological observations were conducted on four pairs of hereditary traits(thumb type,relative length of the ring and index fingers,hair on the middle finger,and little finger curvature)among 412 individuals(217 males and 195 females)of the Gejia ethnic group who have lived in Zhong'an Town,Huangping County,Guizhou Province.The dominant gene frequencies were compared with those of other ethnic groups reported domestically and subjected to hierarchical cluster analysis.Results:The dominant gene frequencies of thumb type,relative length of the ring and index fingers,hair on the middle finger,and little finger curvature in the Gejia ethnic group were 0.2761,0.0901,0.3159,and 0.2611,respectively.Among males,these frequencies were 0.2845,0.0840,0.3739,and 0.2686,respectively,and among females,they were 0.2665,0.0972,0.2557,and 0.2523,respectively.Except for hair on the middle finger,there were no statistically significant differences in the dominant gene frequencies of the other three hereditary traits between genders(P>0.05).Compared with other ethnic groups in China,the dominant gene frequencies of thumb type and hair on the mi-ddle finger in the Gejia ethnic group were of the lower-middle type,while those of relative length of the ring and index fingers and little finger curvature were of the lower type.Cluster analysis revealed that the Gejia ethnic group had a closer genetic distance to southern Chinese ethnic groups in terms of these four hereditary traits.Conclusion:The distribution characteristics of genetic frequencies of the four hereditary traits in the Gejia ethnic group exhibit both the genetic traits of southern Chinese ethnic groups and their own unique ethnic characteristics.

关 键 词：遗传性状 基因频率 [亻革]家人 

分 类 号：Q987[生物学—遗传学]