| 玉米丝裂病的抗性QTL定位 |
| |
| 引用本文： | 魏昕,李丽华,王振华,宋锐,曾兴,张志明,荣廷昭,潘光堂.玉米丝裂病的抗性QTL定位[J].作物学报,2009,35(4):741-744. |
| |
| 作者姓名： | 魏昕 李丽华 王振华 宋锐 曾兴 张志明 荣廷昭 潘光堂 |
| |
| 作者单位： | 1四川农业大学玉米研究所/教育部作物基因资源与遗传改良重点实验室，四川雅安625014；2河南省农业科学院粮食作物研究所，河南郑州450002 |
| |
| 基金项目： | 教育部长江学者和创新团队发展计划，国家高技术研究发展计划(863计划)，引进国际先进农业科学技术重大项目，国家科技支撑计划 |
| |
| 摘 要： | 选用感丝裂病的玉米自交系R08与抗丝裂病的自交系Es40组配F2群体共348个单株，构建了包含115个SSR标记的分子遗传连锁图谱，覆盖玉米基因组2 178.6 cM，平均图距为18.9 cM。采用复合区间作图法，对F2:4家系丝裂病数据进行抗性QTL分析，共检测到12个QTL，分别位于第1、2、4、5和7染色体，贡献率为4.22%~37.95%。其中在第1、3染色体上检测到主效QTL，贡献率均大于30%，基因作用方式均为显性，其余10个QTL的作用方式多为加性或部分显性。
|
| 关 键 词： | 玉米 丝裂病 QTL定位 遗传图谱 SSR |
| 收稿时间： | 2008-07-16 |
QTL Mapping of Resistance to Silk Cut in Maize |
| |
| WEI Xin,LI Li-Hua,WANG Zhen-Hua,SONG Rui,ZENG Xing,ZHANG Zhi-Ming,RONG Ting-Zhao,PAN Guang-Tang.QTL Mapping of Resistance to Silk Cut in Maize[J].Acta Agronomica Sinica,2009,35(4):741-744. |
| |
| Authors: | WEI Xin LI Li-Hua WANG Zhen-Hua SONG Rui ZENG Xing ZHANG Zhi-Ming RONG Ting-Zhao PAN Guang-Tang |
| |
| Institution: | 1.Maize Research Institute/Key Laboratory Crop Genetic Resources and Improvement,Ministry of Education,Sichuan Agricultural University,Ya'an 625014,China;2.Cereal Crop Research Institute,Henan Academy of Agricultural Sciences,Zhengzhou 450002,China |
| |
| Abstract: | Using 115 SSR markers and the F2 population consisting of 348 lines derived from the cross between maize (Zea mays L.) inbred lines R08 and Es40, a genetic linkage map associated with the resistance to silk cut was constructed. The genetic linkage map covered 2 178.6 cM of maize genome with an average mapping distance of 18.9 cM. Using the composite interval mapping (CIM) method, 12 QTLs controlling the resistance to silk cut were detected on chromosomes 1, 2, 4, 5, and 7. These QTLs explained phenotypic variances ranging from 4.22% to 37.95%. Among them, two major QTLs on chromosomes 1 and 3, which explained more than 30% of phenotypic variances, had dominance effect, whereas, the other 10 QTLs had partial dominance effect or additive effect. |
| |
| Keywords: | SSR |
| 本文献已被 维普 万方数据 等数据库收录！ |
| 点击此处可从《作物学报》浏览原始摘要信息 |
| 点击此处可从《作物学报》下载免费的PDF全文 |
|
