猕猴掌骨和指骨长度性差  

Sexual dimorphism by the length of metacarpals and phalanges of Macaca mulatta

作　　者：赵晓进[1] 王凤产[2] 田华香[1] 多甜 

机构地区：[1]河南师范大学水产学院,河南新乡453007 [2]河南师范大学学报编辑部,河南新乡453007

出　　处：《解剖学报》2017年第1期99-102,共4页Acta Anatomica Sinica

基　　金：河南师范大学博士科研启动课题(5102109179103)

摘　　要：目的探讨在1个猕猴种群中用掌骨和指骨的长度鉴定性别。方法采用直接测量法对11例雄性和25例雌性猕猴的掌骨和指骨长度进行测量。数据处理分析采用SPSS 20.0统计学软件。结果手骨的性别正确判别率从近侧掌骨到远侧指骨逐渐增加。5根掌骨和5根远节指骨长度的性别判别率分别是88.9%和100.0%,第1根手骨(包括1节掌骨和2节指骨)和第5根手骨(包括1节掌骨和3节指骨)总长度的性别判别率分别是90.3%和100.0%。因子分析结果显示,19根手骨形态分组是以排(掌骨、近节指骨、中节指骨和远节指骨)为单位,而不是以列(5根指骨)为单位。结论猕猴掌骨和指骨长度变量可以有效地识别性别,对非人灵长类的生物系统演化关系有一定的理论意义和应用价值。Objective To investigate the utility of length measurements of the metacarpals and phalanges to estimate sex in a Macaca mulatta population.Methods The length of the metacarpals and phalanges of 11 males and 25 females was measured by direct dry bone measurement.Data analyses were performed using SPSS version 20.0.Results The result showed that the accuracies of sex determination of hand bones gradually increased from metacarpal to distal phalange.The average lengths of all five metacarpals and distal phalanges were sexually dimorphic with accuracies of88.9% and 100.0% respectively.The total lengths of the first hand bone（including one metacarpal and two phalanges）and the fifth hand bone（including one metacarpal and three phalanges） were sexually dimorphic with accuracies of 90.3%and 100.0% respectively.The result according to factor analysis showed that the morphologic classes for all 19 hand bones were divided into the rows（metacarpals,proximal phalanges,middle phalanges,and distal phalanges） rather than the rays（five digits）.Conclusion The results of this study suggest that the length of metacarpals and phalanges in monkeys can be used reliably for sexing and be a valuation tool both in theory and application in biological context in primates.

关 键 词：指骨 掌骨 性差 骨骼测量 逻辑回归 猕猴 

分 类 号：Q954[生物学—动物学]