| 杂种优势的分子机理研究进展 |
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| 引用本文： | 李勇超,宋书锋,李建民. 杂种优势的分子机理研究进展[J]. 湖北农业科学, 2009, 48(6) |
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| 作者姓名： | 李勇超 宋书锋 李建民 |
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| 作者单位： | 河南科技学院生命科技学院,河南,新乡,453003;中国科学院亚热带农业生态研究所,长沙,410125;河南科技学院资源与环境学院,河南,新乡,453003 |
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| 基金项目： | 河南省新乡市科技发展计划项目 |
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| 摘 要： | 阐述了杂种优势的概念及杂种优势遗传基础的研完现状,主要从杂种优势与显性效应、超显性效应、上位性效应、基因表达调控、表观道传调控、赤霉素表达水平等方面的关系阐述杂种优势产生的可能原因,并提出了杂种优势机理研究有待解决的问题.
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| 关 键 词： | 杂种优势 机理 遗传基础 |
Research Progress of Molecular Mechanisms of Heterosis |
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| LI Yong-chao,SONG Shu-feng,LI Jian-min. Research Progress of Molecular Mechanisms of Heterosis[J]. Hubei Agricultural Sciences, 2009, 48(6) |
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| Authors: | LI Yong-chao SONG Shu-feng LI Jian-min |
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| Affiliation: | 1.School of Life Science and Technology;Henan Institute of Science and Technology;Xinxiang 453003;Henan;China;2.Institute of Subtropical Agriculture;Chinese Academy of Sciences;Changsha 410125;3.College of Resource and Environment;China |
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| Abstract: | Heterosis is a common phenomenon in biology kingdom,which made a great contribution to notable increase of crop yield,such as rice,sorghum,rape et al.In this paper,molecular mechanisms of heterosis were summarized in relation to heterozygosity,dominance hypothesis and overdominance hypothesis,epistasis,expression and regulation of gene,epigenetic regulation,and GA.More studies on heterosis molecular mechanisms should be conducted in the future. |
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| Keywords: | heterosis mechanisms genetic base |
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