家人7项不对称行为特征的群体遗传学研究  

Study of 7 Population Genetics on Behavioral Traits of Lateral Functional Dominance of Gejia People

作　　者：余跃生[1] 杨建辉[1] 陆玉炯[1] 李建富[1] 杨小军[1] 郭光武[1] 刘冬容[1] 

机构地区：[1]黔南民族医学高等专科学校,贵州都匀558003

出　　处：《黔南民族医专学报》2014年第1期5-13,共9页Journal of Qiannan Medical College for Nationalities

基　　金：贵州省教育厅自然科学基金(黔教科20090117);黔南民族医学高等专科学校科研基金(QNYZ200907)

摘　　要：目的：了解贵州[亻革]家人不对称行为特征的分布特点，为人类群体遗传学研究积累资料。方法：采用遗传学界公认的方法对412名（男217，女195）生活在贵州的[亻革]家人7项不对称行为特征（利眼、扣手、利手、利足、叠臂、叠腿、起步类型）进行活体观察。调查对象年龄7～55岁，三代均为[亻革]家人。结果：（1）7项不对称行为特征的出现率右型高于左型；（2）除利眼外，其他特征的出现率男女间差异不明显；（3）扣手与利眼、扣手与利手、扣手与利足、扣手与叠臂、利手与利足、利手与叠腿、利手与起步类型、利足与叠腿之间存在相关性，并具有同侧组合特征（除扣手与利眼外），且均以右-右型组合居多；（4）与我国其他19个民族群体7项不对称行为特征聚类分析的结果显示：[亻革]家人与贵州汉族最为接近，与湖南侗族、靖州苗族和凤凰苗族次之，与内蒙古蒙古族、达斡尔族、朝鲜族、回族、鄂伦春族和天津汉族较远。结论：[亻革]家人7项不对称行为特征多为右型，特征出现率男女间差异多不显著，特征间具有一定相关性，同侧组合特征类型为其亲和特征。Objective：To understand the distribution characteristics of behavioral traits of lateral func-tional dominance of Gejia people in Guizhou,and to collect a wealth of data for the study of human population genetics.Methods：In June 201 0,a sample of 41 2 cases （21 7 males,1 95 females）aged between 7 and 55 years old was investigated on 7 behavioral traits of lateral functional dominance （eye preference,hand clas-ping,handedness,foot preference,arm folding,leg folding and stride type ） of Gejia people living in Guizhou.Parents,grandparents and maternal grandparents were studied.Results：（1 ） The frequencies of right type on the 7 traits of Gejia people were much higher than those of left type;（2）There was no sexual difference in Gejia people on the 7 traits except eye preference; （3 ） There was significant correlation be-tween hand clasping and eye preference,hand clasping and handedness,hand clasping and foot preference, hand clasping and arm folding,handedness and foot preference,handedness and leg folding,handedness and stride type,foot preference and leg folding （P＆lt;0.05 or P＆lt;0.01 ）,and the combinative phenotypes of the two relevant traits usually showed the same lateral functional dominance except hand clasping and eye prefer ence.In each pair of the traits,the frequency of right-right type （R-R type）was much higher than that of 1 eft-left type （L-L type ）.（4 ） On the basis of the dendrogram of the Gejia people and other 1 9 ethnic populations in China,the behavioral traits of lateral functional dominance of the Gejia people in Guizhou was most closely related to the Han in Guizhou,followed by the Dong,Jingzhou Miao and Fenghuang Miao in Hu-nan.It was remotely related to the Mongol,Daur,Chaoxian,Hui,Oroqen in Neimenggu and Han in Tianjin. Conclusions：The 7 behavioral traits of lateral functional dominance in Gejia people of Guizhou belonged to right type;the frequencies of most traits had no sexual difference.There was correlation among the traits,and the relev

关 键 词：不对称行为特征 活体观察 人类群体遗传学 [亻革]家人 

分 类 号：Q987[生物学—遗传学]