当前位置: 首页 > 文章 > 冬小麦品种北京837抗叶锈病基因的染色体定位研究 植物病理学报 1995 (4) 297-300
Position: Home > Articles > CHROMOSOME LOCATION OF GENES FOR LEAF RUST RESISTANCE IN WINTER WHEAT CULTIVAR BEIJING 837 Acta Phytopathologica Sinica 1995 (4) 297-300

冬小麦品种北京837抗叶锈病基因的染色体定位研究

作  者:
陈万权;胡长程;晏思白;庞家智;孙荣锦
单  位:
中国农业科学院植物保护研究所;中国农业科学院作物育种栽培研究所
关键词:
小麦;叶锈菌;抗锈性;单体分析;基因推导
摘  要:
1990~1993年间,引用中国春全套单体系列和抗叶锈病小麦近等基因系(或单基因系)为材料,采用单体遗传分析和基因推导相结合的方法,对冬小麦品种北京837抗叶锈病基因进行染色体定位研究,明确其对生理小种叶中1号的抗性系由分别位于染色体1B和6B上的两个显性互补基因所控制。位于1B染色体上的基因可能是Lr26,位于6B上的可能是Lr3a,二者可抵抗我国小麦叶锈菌群体中的部分生理小种(或毒性基因组合)。
译  名:
CHROMOSOME LOCATION OF GENES FOR LEAF RUST RESISTANCE IN WINTER WHEAT CULTIVAR BEIJING 837
作  者:
Chen Wanquan Hu Changcheng Yan Sibai Pang Jiazhi Sun Rongjin (Institute of Plant Protection, CAAS, Beijing 100094) (Institute of Crop Breeding and Cultivation, CAAS, Beijing 100081)
关键词:
Wheat Leaf rust Rust resistance Monosomic analysis Postulation of gene
摘  要:
During 1990-1993, a set of 21 monosomics of Chinese Spring and 8 near-isogenic Thatcher lines of wheat resistance to leaf rust was used to locate the leaf rust resistance genes of Beijing 837, a new wheat cultivar developed by CAAS. As the results indicated, the resistance of the cultivar to Puccinia recondita f. sp. tritici race CLR I was controlled by two complementary dominant genes located on chromosome 1B and 6B, respectively. The presence of Lr26 on chromosome 1B and Lr3a on chromosome 6B was also postulated by use of 8 P. recondita cultures previously characterized for the different avirulence and virulence gene combination.

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