Molecular Evolutionary Rate Calculation of Hemoglobin α Chain and γ Chain at Different Stages in Vertebrate Evolution Process  

血红蛋白α链、β链在脊椎动物不同进化阶段进化速率的计算(英文)

作　　者：龙承星[1] 张波[2] 马绍宾[3] 

机构地区：[1]湖南人文科技学院数学系,湖南娄底417000 [2]云南大学数学与统计学院,云南昆明650091 [3]云南大学生命科学学院,云南昆明650091

出　　处：《Agricultural Science & Technology》2010年第9期101-104,220,共5页农业科学与技术（英文版）

基　　金：Supported by Youth Foundation of Hunan Institution of Humanities,Science and Technology(2009QN08);Educational Reform Project of Hunan Institution of Humanities,Science and Technology(RKJGZ1013)~~

摘　　要：Pseudogene and fibrin peptide which has rapid evolve speed and good stability are used in this study to determine the divergence date among groups.Through calculating the evolutionary rate of hemoglobin α chain,γ chain in vertebrate（including birds and mammals）,it is concluded that the evolutionary rate of hemoglobin α chain,γ chain is not invariable.It shows different evolutionary rates in different periods,that is,faster in early evolution stage and relatively slow in later stage.利用进化速率较快且较恒定的血纤蛋白肽及假基因来确定类群分歧时间的方法,通过计算脊椎动物(包括鸟类和哺乳类)血红蛋白α链、γ链的进化速率得出,脊椎动物血红蛋白α链、γ链的进化速率并不是恒定的,而是在不同时期具有不同的进化速率;在进化早期进化速率较快,进化晚期较慢。

关 键 词：Molecular clock Evolutionary rate HEMOGLOBIN VERTEBRATE Fibrin peptide 

分 类 号：Q951[生物学—动物学]