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白桦5×5双列杂交子代生长性状的遗传效应分析
引用本文:王成,滕文华,李开隆,张含国,夏德安,姜静.白桦5×5双列杂交子代生长性状的遗传效应分析[J].北京林业大学学报,2011,33(3):14-20.
作者姓名:王成  滕文华  李开隆  张含国  夏德安  姜静
作者单位:东北林业大学林木遗传育种与生物技术教育部重点实验室
基金项目:"十一五"国家科技支撑计划项目
摘    要:以4株中国白桦优树(B1、B2、B3和B4)和1株欧洲白桦(OB)为杂交亲本,按5×5双列交配设计控制杂交,对全同胞子代的树高、胸径及材积分析表明:杂交组合子代间的树高、胸径和材积均存在着极显著的差异,各性状的一般配合力、特殊配合力和反交效应差异也达到了极显著水平.根据各杂交组合子代的生长量、一般配合力、特殊配合力、反...

关 键 词:白桦  双列杂交  配合力  反交效应
收稿时间:1900-01-01

Analysis of genetic effects on growth traits in a 5 × 5 diallel cross of Betula platyphylla
WANG Cheng,TENG Wen-hua,LI Kai-long,ZHANG Han-guo,XIA De-an,JIANG Jing.Analysis of genetic effects on growth traits in a 5 × 5 diallel cross of Betula platyphylla[J].Journal of Beijing Forestry University,2011,33(3):14-20.
Authors:WANG Cheng  TENG Wen-hua  LI Kai-long  ZHANG Han-guo  XIA De-an  JIANG Jing
Institution:Key Laboratory of Forestry Tree Genetic Improvement and Biotechnology of Ministry of Education, Northeast Forestry University, Harbin, 150040,P. R. China.
Abstract:Tree height, diameter at breast height (DBH) and volume of full sib progenies were measured using a 5× 5 diallel cross of four local strains of Betula platyphylla (B1, B2, B3 and B4) and one European strain of B. pendula. The results indicated that height, DBH and volume among crossing progenies differed significantly. General and specific combining ability (GCA and SCA), and reciprocal effects (REC) of the growth traits also differed significantly. Based on the estimation of growth amount, GCA, SCA and REC of crossing progenies, we selected B1, B4 and B3 as the best parent strain, female parent strain and male parent strain, respectively. For B1, its GCA for height, DBH and volume were 0.126 3, 1.136 7 and 0009 1, respectively. The height, DBH and volume of B1 hybrid progeny were 3.37%, 5.05% and 12.18% higher, respectively, than the average progeny performance. B1×B3, OB×B1 and B4×B3 were superior crosses in a preliminary selection. The SCA for height, DBH and volume of B1×B3 was 0.091 0, 0.808 0 and 0.007 0, respectively. The height, DBH and volume of B1×B3 progeny were 13.11%, 21.21% and 55.76% higher, respectively, than the average progeny performance. The study provides a theoretical basis for the parent selection and the establishment of a second generation seed orchard for birch.
Keywords:Betula platyphylla  diallel cross  combining ability  reciprocal effect  
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