作物学报Issue(2)：207-215,9.DOI:10.3724/SP.J.1006.2013.00207
油菜半矮杆新品系10D130株型性状的遗传分析
Genetic Analysis of Plant Type in Semi-Dwarf New Line (10D130) of Rapeseed
摘要
Abstract
Improvement of plant types is one of main methods to increase yield and qualities of rapeseed. Dwarf and semi-dwarf plant types help for enhancements of lodging resistance and harvest index. Six generations (P1, P2, F1, F2, B1, and B2) were pro-duced from a cross between semi-dwarf 10D130 and Zhongshuang 11 (ZS11) to analyze inheritances of plant height, branch height, length of main inflorescence, valid branch space and numbers of valid branch in rapeseed (Brassica napus) by the mixed major gene plus polygene inheritance model. The results showed that the plant height, branch height, length of main inflorescence and valid branch space of 10D130×ZS11 were dominated by a pair of major gene with additive-dominant effects plus polygenes with additive-dominance-epistasis effects (D-0 model). The additive effect and dominant effect of major gene of plant height were–8.58 and 7.44, and the heritability of the major gene in B1, B2, and F2 was 23.52%, 0.91%, and 17.81%, respectively. The addi-tive effect and dominant effect of major gene of branch height were–22.11 and 3.13, and the heritability of the major gene in B1, B2 and F2 was 49.95%, 40.85%, and 61.15%, respectively. The additive effect and dominant effect of major gene of length of main inflorescence were–2.21 and–3.53, and the heritability of the major gene of length of main inflorescence in B1, B2, and F2 was 0.68%, 47.94%, and 40.07%. The first valid branch space of 10D130×ZS11 was dominated by two pairs of major gene with addi-tive-dominant-epistasis effects plus polygenes with additive-dominance-epistasis (E-1 model). The additive effects of major genes关键词
油菜/株型/主基因+多基因/遗传分析Key words
Rapeseed/Plant type/Major gene plus polygene/Genetic analysis引用本文复制引用
周清元,李军庆,崔翠,卜海东,阴涛,颜银华,李加纳,张正圣..油菜半矮杆新品系10D130株型性状的遗传分析[J].作物学报,2013,(2):207-215,9.基金项目
本研究由国家高技术研究发展计划(863计划)项目(2011AA10A104),高等学校学科创新引智计划资助(B12006),国家农业现代产业技术体系建设专项(CARS-13)和重庆市自然科学基金项目(cstc2011jjA80005)资助 （863计划）
