CAJ | 학술논문

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HalfsibMS,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.
자대측정시림목육충중적관건배절,유관자대측정적유전삼수화통계량계산환존재불소문제. 용우계산다충유전삼수적R어언정서포HalfsibMS,가이대다지점혹단지점적반동포자대측정유전통계모형진행분석계산,병차가이처리평형수거혹불평형수거. 해정서포수선채용고정효응모형계산친본배합력급기타고정효응;연후재용수궤효응모형계산유전방차화협방차진이고산유전력,병계산매일개삼수고계적표준오화현저성검험통계량;최후,대우다개수량성상,급출료타문재가계효응、지점여가계호작효응급구조여가계호작효응수평상적유전상관계수급기표준오. 해정서포가재망참http://fgbio. njfu. edu. cn/tong/halfsibms/halfsibms. html상자유하재사용.
A progeny test plays an important role in forest breeding programs, but there still exist some problems in half?sib progeny test in calculating the estimates of genetic parameters and some statistics, especially when the experimental data are unbalanced. HalfsibMS 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 vari?ance components and further the heritabilities. Moreover, HalfsibMS can calculate standard error of each parameter esti?mate and statistics of significance tests. For multiple traits, the new tool can also provide the genetic correlation coeffi?cient between any two traits at the levels of family, site×family and block×family effects. This package can be download?ed from the site of http://fgbio.njfu.edu.cn/tong/halfsibms/halfsibms.html free.