新疆农业科学2018，Vol.55Issue(3)：405-413,9.DOI:10.6048/j.issn.1001-4330.2018.03.002
陆地棉半矮秆突变体sd株高对外源激素的敏感性
Research on Exogenous Hormones Sensitivity on Plant Height of a Semi-Dwarf Mutant in Upland Cotton
摘要
Abstract
[Objective] The aim of this study is to illuminate the sensibility of the exogenous hormones to plant height of a dwarf mutant in upland cotton so as to determine which kind of hormone sensitivity the mutant belongs to, which will facilitate dissecting the relationship between the genetic basis of plant height and hormo-nal regulation in cotton.[Method]The cultivated upland cotton variety Xinluzao 17 and its dwarf mutant were used as experimental materials. The plant height variations of the two cottons were observed under different hormone types and different concentrations. [Result]The mutant was approximately three -quarters of the plant height of Xinluzao17 , which indicated that the mutant was a typical semi-dwarf mutant in upland cot-ton. After the cottons were treated with GA3 , the plant height of Xinluzao17 was higher than that of the mu-tant. Treated with 50 mg/L GA3 , plant height of the mutant could be resumed to the plant height of Xin-luzao17, a normal plant height cultivar. It suggested that the plant height of the mutant was sensitive to GA3 . The order of the effects of phytohormone on cotton plant height was GA3 > BR> IAA. Pearson correlation a-nalysis showed that the plant height had a significant positive correlation with GA3 . It further suggested that the mutant was a GA3 sensitive dwarf.[Conclusion]The mutant is a typical semi-dwarf in upland cotton. The plant height of the mutant is sensitive to exogenous GA3 .关键词
棉花/突变体/株高/激素/GA3敏感Key words
cotton/mutant/plant height/hormones/GA3 sensitivity分类
农业科技引用本文复制引用
周勇,张晓宏,米日古丽·马木提,马盾,周小云..陆地棉半矮秆突变体sd株高对外源激素的敏感性[J].新疆农业科学,2018,55(3):405-413,9.基金项目
新疆维吾尔自治区自然科学基金项目"陆地棉GA代谢信号通路的相关基因表达特征分析"(2014211A036) （2014211A036）
Natural Science Foundation of Xinjiang Uygur Autonomous Region of China"Expression Analysis of Related Gene to GA Metabolic Signaling Pathway from Upland Cotton" (2014211A036) （2014211A036）
