| 地中海仙客来叶纹变异及其基因控制模式 |
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| 引用本文： | 赵志新,林 艳,郭伟珍.地中海仙客来叶纹变异及其基因控制模式[J].中国农学通报,2015,31(10):124-128. |
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| 作者姓名： | 赵志新 林 艳 郭伟珍 |
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| 作者单位： | 河北省林业科学研究院;河北省林木良种工程技术研究中心 |
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| 基金项目： | 国家林业局“948”引进项目“地中海仙客来种质资源及其远缘杂交技术引进”(2013-4-42) |
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| 摘 要： | 为了探索地中海仙客来叶纹遗传及选育优良新品种,对6个不同叶纹的类型进行了自交测定,根据其子代分离情况,对其叶纹基因组成进行了研究。结果表明:B型、M型自交后代,100%均为B型及M型,F型、H型、X型、L型则出现性状分离,其分离规律说明地中海仙客来叶纹性状受微效多基因控制,每一位点由一对等位基因RL或RB占据,其中RL基因使叶片表现型为绿色,RB使叶片表现型为银白色。当某一位点的基因型为RLRL时,叶片表现为深绿色;基因型为RLRB,叶片表现为绿色;基因型为RBRB,叶片表现为银白色,各位点的集合图案则形成了不同类型的叶纹。叶纹变异的基因控制模式是未来选育地中海仙客来优良新品种的基础。
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| 关 键 词： | 地中海仙客来 叶纹变异 基因模式 |
| 收稿时间： | 2014/10/21 0:00:00 |
| 修稿时间： | 2014/10/29 0:00:00 |
Leaf Veins Variation and Gene Control Mode of Cyclamen hederifolium |
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| Zhao Zhixin,Lin Yan and Guo Weizhen.Leaf Veins Variation and Gene Control Mode of Cyclamen hederifolium[J].Chinese Agricultural Science Bulletin,2015,31(10):124-128. |
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| Authors: | Zhao Zhixin Lin Yan and Guo Weizhen |
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| Institution: | Zhao Zhixin;Lin Yan;Guo Weizhen;Hebei Institute of Forestry Science;Hebei Engineering and Technology Center of Forest Improved Variety; |
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| Abstract: | In order to explore the leaf veins heredity and breed excellent varieties of Cyclamen hederifolium, the selfing lines measurement of six different types are carried out, and the genetic constitution of leaf veins is studied according of the offspring separation condition. The results showed that, B or M type selfing generations were 100% B or M types, and F, H, X, L types had properties separation. The separation law showed that leaf veins of C.hederifolium were controlled by tiny effect polygene, and each site consisted of a pair alleles RL or RB, among them RL gene made phenotype for the green leaf, RB gene led to leaf phenotype for silvery white. If a locus of genotype consisted of RLRL, blade performance was dark green; genotype was RLRB, leaf appeared to be green; genotype was RBRB, blade showed silvery white; the collection pattern by all locus were formed the different kinds of leaf veins. The gene control mode about leaf veins variation is the foundation for breeding fine varieties of C.hederifolium in the future. |
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| Keywords: | C hederifolium leaf veins variation gene mode |
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