期刊
EUPHYTICA
卷 130, 期 1, 页码 143-145出版社
KLUWER ACADEMIC PUBL
DOI: 10.1023/A:1022316931149
关键词
allelic; inheritance; mutant; Orseolia oryzae; Oryza sativa L.; resistance genes
The Asian rice gall midge, Orseolia oryzae Wood Mason (Diptera: Cecidomyiidae), is a major pest of rice in several South and South East Asian countries. The maggots feed internally on the growing tips of the tillers and transform them into tubular galls, onion leaf-like structures called 'silver shoots' resulting into severe yield loss to the rice crop. We studied the mode of inheritance and allelic relationships of the resistance genes involved in resistant donor Line 9, a sib of a susceptible cultivar 'Madhuri'. The segregation behaviour of F-1, F-2 and F-3 populations of the cross between Line 9 and susceptible cultivar MW10 confirmed the presence of a single dominant gene for resistance. Tests of allelism with all the known genes giving resistance to this population indicated that Line 9 possessed a new gene which was designated Gm 9.
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