Molecular marker method of rice variety brown planthopper resistance main gene Bph3
An anti-BPH and molecular marker technology, applied in the field of molecular genetics, can solve the problems of difficult-to-polymerize insect-resistant genes, etc., and achieve the effects of convenient identification, clear selection targets, and low reliability
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[0032] Studies have shown that BPH-resistant gene resources mainly exist in indica and wild rice species in Sri Lanka and India (Ikeda and Vaughau, 1991). Athwal et al. (1971) reported that Mudgo, CO22 and MTU15 carried the same brown planthopper resistance gene Bph-1, and ASD7 carried a recessive insect resistance gene bph-2. Athwal and Pathak (1972) reported that MGL2 contains the insect resistance gene Bph-1, and Ptb18 contains bph-2. Martinez and Khush (1974) reported that IR747B2-6 contained Bph-1, and R1154-243 and IR4-93 contained bph-2. Lakshiminarayana and Khush (1977) reported that the Sri Lankan insect-resistant variety Rathu Heenati is controlled by a dominant gene Bph-3 that segregates independently from Bph-1; while the variety Babawee is controlled by a recessive gene bph-4 that segregates independently from bph-2 . Sidhu and Khush (1978) reported that rice varieties carrying Bph-3 or bph-4 were resistant to all BPH biotypes. The Thai rice varieties Col.5Thai...
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