Monogenic Control of Basic Vegetative Phase and Photoperiod-sensitive Phase in Rice
Monogenic Control of Basic Vegetative Phase and Photoperiod-sensitive Phase in Rice
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水稻基本营养期和光敏期的单基因调控
DOI：
10.1270/jsbbs1951.32.1
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发表时间：
1982
期刊：
影响因子：
2.4
通讯作者：
F. Kikuchi
中科院分区：
文献类型：
--
作者：
M. Yokoo;F. Kikuchi
Lm属于I连锁群，是控制栽培稻抽穗期的主要基因座之一，也与光周期敏感性有关。以LME和LMU等位基因系为材料，在自然光照和控制光照条件下，分析了Lm基因座的等位基因对营养生长期的两个阶段，即营养基础期和光敏感期的影响。马来西亚品种Morak Sepilai与日本品种Fujisaka 5杂交，在Lrom F1至BC4F11的15个世代中保持杂合子(LME/LMU)，作为连续4次回交的轮回亲本。Fujisaka 5号和Morak Sepilai将早熟等位基因LME和晚熟等位基因LMU分别传递给它们的杂交后代。
Lm which belongs to the linkage group I is one of the primary loci controlling heading time of cultivated rice and is also associated with photoperiod sensitivity. The effects of alleles of the Lm locus on two phases of the vegetative growth duration, the basic vegetative phase and the photoperiod-sensitive phase, were analysed by growing two isogenic lines with Lme and Lmu allelles under natural and controlled daylengths. Heterozygotes (Lme/Lmu) were maintained during 15 generations Lrom F1 through BC4F11 in the cross between the Malaysian cultivar Morak Sepilai and the Japanese cultivar Fujisaka 5, which was used as the recurrent parent for the successive four backcrosses. Fujisaka 5 and Morak Sepilai transmitted the early-maturing allele Lme and the late-maturing allele Lmu to their hybrid progenies, respectively.