关于杉木双列杂交试验若干问题的探讨  

Research on Some Issues about Diallel Cross Test of Chinese Fir

作　　者：齐明[1] 彭九生[2] 何贵平[1] 

机构地区：[1]中国林业科学研究院亚热带林业研究所,浙江富阳311400 [2]江西省林业科学研究院,江西南昌330032

出　　处：《林业科学研究》2008年第5期724-728,共5页Forest Research

基　　金：浙江省自然科学基金项目(Y306046)资助

摘　　要：利用杉木9×9半双列和杉木6×6全双列试验材料,并综合我国杉木配合力育种中所有的文献资料,进一步探讨了杉木双列杂交试验和配合力测定中应注意的若干问题。结果表明:(1)生长发育阶段及试验环境对控制杉木性状的加性遗传方差和非加性遗传方差比值没有质的影响;(2)在I类材料中,杉木的母本细胞质效应作用不明显,在II类材料中,在选择性状(生长性状)上,检测到显著的母本细胞质效应,但这不影响非加性遗传方差份量的主导作用;(3)交配设计类型的变化对杉木II类材料的性状基因作用方式的试验结果有明显的影响;(4)在控制子代性状的表达方面,母本的加性效应显著,父本的花粉效应不明显,但父本与母本互作效应极其明显。因此在杉木杂交育种中,可以评选出具有突出表现的杂交组合。Two types of parents of Chinese fir with different genetic properties （ 1-9 × 9 half diallel cross and Ⅱ-6 × 6 complete diallel cross ） and combination with all literatures in combining ability breeding of Chinese fir, some issues about diallel cross test of Chinese fir were researched. The results are as follows ： （ 1 ） growth and development stage, as well as trails environments had no essential effects upon relative ratios of additive genetic variance to nonadditive genetic variance in Chinese fir. （2） In type Ⅰ materials, there was no obvious effects of female cytoplasm, but there was obvious effects of female cytoplasm on selective traits （growth traits） in type Ⅱ materials, but this had not affected a leading action of non-additive genetic variance that controlled expression on progeny traits. （3）The changes of the types of mating designs had obviously influenced the test results about gene action fashions in Ⅱ- materials. （4）There were significant differences among females, but not among males. The interaction variances between females and males were always significant extremely, cross combinations with outstanding performances could be selected out.

关 键 词：杉木 双列杂交 一般配合力 特殊配合力 母本细胞质效应 交配设计类型 父本与母本互作 

分 类 号：S791.27[农业科学—林木遗传育种]