文献类型： 外文期刊

作者： Zhang, C. ² ; Sun, J. -L. ¹ ; Jia, Y. -H. ¹ ; Wang, J. ¹ ; Xu, Z. -J. ³ ; Du, X. -M. ¹ ;

作者机构： 1.Chinese Acad Agr Sci, Key Lab Cotton Genet Improvement, Minist Agr, Cotton Res Inst, Anyang 455004, Henan, Peoples R China

2.Sichuan Acad Agr Sci, Ind Crop Inst, Jianyang 641400, Sichuan, Peoples R China

3.Sichuan Agr Univ, Rice Res Inst, Chengdu 611130, Peoples R China

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 ）

ISSN：

年卷期：

页码：

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.