| 小麦新品系YW243抗条锈性鉴定和遗传分析 |
| |
| 引用本文： | 谢皓,牛永春,陈孝,马有志,吴立人,林志珊.小麦新品系YW243抗条锈性鉴定和遗传分析[J].植物病理学报,2003,33(3):243-247. |
| |
| 作者姓名： | 谢皓 牛永春 陈孝 马有志 吴立人 林志珊 |
| |
| 作者单位： | 1 中国农业科学院作物育种栽培研究所, 农业部作物遗传育种重点开放实验室, 北京 100081;2 中国农业科学院植物保护研究所, 北京 100094;3 北京农学院植物科学技术系, 北京 102206 |
| |
| 基金项目： | 国家“九五”科技攻关项目 (96 C0 1 0 1 0 6 0 9)，北京市自然科学基金项目 (592 0 0 8) |
| |
| 摘 要： | YW243是最近培育出的兼抗条锈病、白粉病和黄矮病的小麦新品系,本文对其条锈病抗性进行研究。小麦条锈菌苗期接种鉴定表明,YW243高抗CY29、CY30、CY31、CY32、CYSu-11等我国条锈菌流行小种。用26个来自世界各地的菌系接种进行基因推导,结果表明,YW243具有较宽的抗谱,试验中21个已知基因系,仅有Yr5的抗性与YW243相似,但YW243的系谱表明不含有Yr5基因,因此YW243很可能含有一个新的抗条锈病基因。用YW243和京771分别作为抗感亲本进行杂交,后代分离结果表明,YW243对条锈菌CY31的抗性由1个显性基因控制。分子标记初步研究表明,该基因与RAPD引物OPY08扩增出的1条特异DNA片段连锁。
|
| 关 键 词： | 小麦 YW243 条锈病 遗传分析 |
| 文章编号： | 0412-0914(2003)03-0243-05 |
| 收稿时间： | 2002-01-14 |
| 修稿时间： | 2002年1月14日 |
Assessment and genetic analysis on the resistance of a new wheat line YW243 to stripe rust |
| |
| XIE Hao ,NIU Yong chun ,CHEN Xiao ,MA You zhi ,WU Li ren ,LIN Zhi shan.Assessment and genetic analysis on the resistance of a new wheat line YW243 to stripe rust[J].Acta Phytopathologica Sinica,2003,33(3):243-247. |
| |
| Authors: | XIE Hao NIU Yong chun CHEN Xiao MA You zhi WU Li ren LIN Zhi shan |
| |
| Institution: | 1 Institute of Crop Breeding and Cultivation, CAAS, Beijing 100081, China;2 Institute of Plant Protection, CAAS, Beijing 100094, China;3 Beijing Agricultural College, Beijing 102206, China |
| |
| Abstract: | YW243, a recently developed new source of resistance to wheat stripe rust, powdery mildew and BYDV, was studied on its resistance to stripe rust. The results of seedling test showed that it was resistant to all the contemporary prevalent races of Puccinia striiformis in China, including CY29, CY30, CY31, CY32 and CYSu 11. The result of postulation study showed that it had a wide resistance spectrum, with resistance to all of the 26 isolates (races) collected from various regions of the world. Of the 21 lines with known Yr genes, only the line with Yr5 had an RS similar to that of YW243, but the pedigree of YW243 showed that the progenitor of YW243 did not include Yr5 , indicating that the resistance gene of YW243 is likely a new stripe rust resistance gene. A genetic study of a cross using YW243 and Jing 771 as resistant and susceptible parents revealed that the stripe resistance of YW243 to CY31 was controlled by a single dominant gene. A preliminary molecular marker study revealed that this gene was linked to a specific DNA segment amplified by a RAPD primer OPY08. |
| |
| Keywords: | wheat YW243 stripe rust genetic analysis |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《植物病理学报》浏览原始摘要信息 |
| 点击此处可从《植物病理学报》下载免费的PDF全文 |
|
