2012•Unpublished venueRequires access

Detection and fine mapping of two quantitative trait loci for partial resistance to stripe virus in rice (Oryza sativa L.)

Ying-Xin ZhangQi, WangLing Jiang

Abstract

Rice stripe virus (RSV) is one of the most destructive pathogens of rice (Oryza sativa L.) in East Asia. Development of resistant varieties offers a more economical and efficient way to control this disease. In the present study, tests using four inoculation methods were used on 85 backcross inbred lines of Sasanishiki (japonica)/Habataki (indica) to map quantitative trait loci (QTL) conferring resistance to RSV. One QTL on chromosome 3 and two on chromosome 11 were detected, jointly explaining 18-47 % of the trait vari- ance. The QTL (qSTV11 HAB -1 and qSTV11 HAB -2 )o n chromosome 11 were closely linked, and mapped in

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Key concepts: Quantitative trait locus, Oryza sativa, Backcrossing, Biology, Japonica, Japonica rice, Chromosome, Genetics