林木多地点半同胞子代测定遗传分析R语言程序包及其应用  

Halfsib MS: An R package for genetic analysis of half-sib progeny test at multiple sites in forest trees

作　　者：王德源[1] 童春发[1] 

机构地区：[1]南京林业大学,林木遗传与生物技术省部共建教育部重点实验室,江苏南京210037

出　　处：《南京林业大学学报（自然科学版）》2015年第5期45-51,共7页Journal of Nanjing Forestry University：Natural Sciences Edition

基　　金：国家自然科学基金面上项目(31070601);江苏高校优势学科建设工程资助项目(PAPD)

摘　　要：子代测定是林木育种中的关键环节,有关子代测定的遗传参数和统计量计算还存在不少问题。用于计算多种遗传参数的R语言程序包Halfsib MS,可以对多地点或单地点的半同胞子代测定遗传统计模型进行分析计算,并且可以处理平衡数据或不平衡数据。该程序包首先采用固定效应模型计算亲本配合力及其他固定效应;然后再用随机效应模型计算遗传方差和协方差进而估算遗传力,并计算每一个参数估计的标准误和显著性检验统计量;最后,对于多个数量性状,给出了它们在家系效应、地点与家系互作效应及区组与家系互作效应水平上的遗传相关系数及其标准误。该程序包可在网站http://fgbio.njfu.edu.cn/tong/halfsibms/halfsibms.html上自由下载使用。A progeny test plays an important role in forest breeding programs,but there still exist some problems in halfsib progeny test in calculating the estimates of genetic parameters and some statistics,especially when the experimental data are unbalanced. Halfsib MS is a new R-based package developed for calculating genetic parameters with balanced or unbalanced data in half-sib progeny test at multiple sites in forest trees. For the fixed-effect model,the package used the methods of restricted linear model to estimate the general combining abilities of parents and other fixed effects. For the random effect model,the package applied variance analysis method of mixed linear model to compute the genetic variance components and further the heritabilities. Moreover,Halfsib MS can calculate standard error of each parameter estimate and statistics of significance tests. For multiple traits,the new tool can also provide the genetic correlation coefficient between any two traits at the levels of family,site × family and block × family effects. This package can be downloaded from the site of http： / / fgbio. njfu. edu. cn / tong / halfsibms / halfsibms. html free.

关 键 词：R语言程序包HalfsibMS 半同胞子代测定 配合力 方差分量 遗传力 

分 类 号：S722.3[农业科学—林木遗传育种] Q348[农业科学—林学]