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分析了云南水稻品种堆金子、扎昌龙、毫糯扬和干炸谷对白叶枯病菌系“江陵691”和“Pxo61”抗性的遗传模式和等位关系,鉴定了这4个品种所带抗病基因与华中农业大学命名的和国外命名的抗白叶枯病基因的异同。结果表明:堆金子等4个品种对“江陵691”和“Pxo61”的抗性分别受一对相互独立的显性基因控制。毫糯扬和干炸谷对两菌系的抗病基因呈独立遗传。堆金子和扎昌龙对两菌系的抗病基因呈连锁遗传,其重组值分别为29.8±4.7%和26.9±4.6%。干炸谷带的显性抗病基因与Xa-e(华中农业大学命名)和Xa-3(日本命名)等位或相同。堆金子、扎昌龙和毫糯扬带有的显性抗病基因分别与Xa-a、xa-c、Xa-e和Xa-f(华中农业大学命名)不同,呈独立遗传,并分别与Xa-1、Xa-2、Xa-3、Xa-4、xa-5和Xa-14(日本或国际水稻研究所命名)是独立遗传。推测堆金子、扎昌龙和毫糯扬可能分别带有新的抗白叶枯病基因。
The genetic patterns and allelic relationships of Yunnan rice cultivars “Jinling 691” and “Pxo 61” against rice bacterial blight, Zha Chang Long, Mill Nuo Yang and Dry Valley were analyzed, and the relationships among the four cultivars Similarities and Differences of Resistance Genes to Bacterial Blight Resistance Genes Named and Named Overseas in Huazhong Agricultural University. The results showed that the resistance of “Jinling 691” and “Pxo61” was controlled by a pair of independent dominant genes respectively. Mill waxy and dry Valley on the two strains of the disease resistance gene was independently inherited. Heap gold and Zha Changlong on the two strains of the disease-resistant genes were genetic linkage, the recombinant values were 29.8 ± 4.7% and 26.9 ± 4.6%. The dominant resistance gene in dry-fried valley is at the same or equal to Xa-e (named by Huazhong Agricultural University) and Xa-3 (named after Japan). Different from Xa-a, xa-c, Xa-e and Xa-f (named by Huazhong Agricultural University), the dominant resistance genes of Heap Gold, Zha Chang Long and Jinnuo Yang were independently inherited, Xa-1, Xa-2, Xa-3, Xa-4, Xa-5 and Xa-14 (named after the Japanese or International Rice Research Institute) are independently inherited. Speculated that heap gold, Zha Changlong and mill waxy Yang may be with a new bacterial leaf blight resistance genes.