Morphological characters, inheritance and response to exogenous hormones of a cotton super-dwarf mutant of Gossypium hirsutum
文献类型: 外文期刊
第一作者: Sun, J. -L.
作者: Sun, J. -L.;Jia, Y. -H.;Wang, J.;Du, X. -M.;Zhang, C.;Xu, Z. -J.
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关键词: gibberellin acid: agrichemical;growth regulator;biosynthesis;exogenous hormone;brassinosteroid: 78821-42-8;agrichemical;growth regulator;exogenous hormone;indol acetic acid: agrichemical;growth regulator;exogenous hormone;signal transduction;plant height;morphological character;internode length;dwarf trait
期刊名称:PLANT BREEDING ( 影响因子:1.832; 五年影响因子:1.956 )
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收录情况: SCI
摘要: P>A novel super-dwarf mutant, named AS98, was discovered from an interspecific hybrid in 1998. Compared to the normal line LHF10W99, plant height and internode length were significantly shorter in AS98, but it had only slightly (3-5%) fewer internodes. Therefore, the shorter plant height was the result of shorter internodal length. AS98 was crossed with LHF10W99, and the F-1, F-2, BC1, and BC2 populations were used for genetic analysis of the dwarf trait. The results showed that the trait was controlled by a single incomplete-dominant gene. Exogenous application of gibberellin acid (GA(3)), brassinosteroid and indol acetic acid showed a significant response to GA(3), which could restore plant height in AS98. The results thus provide a basis for utilizing the dwarf trait in breeding and studying the biosynthesis of GA or signal transduction in cotton.
分类号: S3
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