核农学报2011，Vol.25Issue(3)：448-455,8.
陆地棉矮秆突变体株高和纤维品质的QTL定位及相关性研究
CORRELATION ANALYSIS AND QTL MAPPING FOR PLANT HEIGHT AND FIBRE QUALITY OF DWARF MUTANT IN UPLAND COTTON (Gossypium hirsutum L.)
摘要
Abstract
Aril327 was a dwarf mutant derived from Ari971 introduced from America and treated by 60Co -γ-rays irradiation. Cross combination was created by Aril327 and TM-1 which was a standard genetic line for Gossypium hirsutum. QTL analysis for plant height and fiber quality traits was conducted in the F2 population of the cross. 4 QTLs were identified for plant height, distributed on chromosome 3,11,14 and LG6,jointly explaining 74. 53% of the plant height variance. 2 QTLs were identified for fiber strength, distributing on Chr. 23 and LG5, explaining 4.85% and 9.85% of the fiber strength variance, respectively, one QTL was identified for micronaire, distributing on LG3 and explaining 7. 28% of the fiber micronaire variance, one QTL was identified for fiber length, fiber uniformity and fiber elongation accordingly, distributing on LG3 altogether and explaining 9. 86% , 28. 35% and 28. 26% of the variance,respectively. The correlation coefficients between plant height and fiber quality traits were all small and not significant, indicating that fiber quality traits maybe have little relative with plant height genetically, provides the theoretical foundation for simultaneous improvement of plant height and fiber quality in cotton breeding.关键词
棉花/株高/纤维品质/QTL/相关分析Key words
cotton/ plant height/ fiber quality/ QTL/ correlation analysis引用本文复制引用
王新坤,潘兆娥,孙君灵,何守朴,唐灿明,杜雄明..陆地棉矮秆突变体株高和纤维品质的QTL定位及相关性研究[J].核农学报,2011,25(3):448-455,8.基金项目
国家重点基础研究发展计划(973计划)(2004CB117306) （973计划）
