Mapping of a new gene for brown planthopper resistance in cultivated rice introgressed fromOryza eichingeri
作者： Guoqing Liu , Huihuang Yan , Qiang Fu , Qian Qian , Zhitao Zhang
DOI: 10.1007/BF03187031
关键词:
摘要: Wild rice species is an important source of useful genes for cultivated improvement. Some accessions ofOryza eichingeri (2n = 24, CC) from Africa confer strong resistance to brown planthopper (BPH), whitebacked (WBPH) and bacterial blight (BB). In the present study, restriction fragments length polymorphism (RFLP) simple sequence repeats (SSR) analysis were performed on disomic backcross plants betweenOryza sativa AA) andO. in order identify presence ofO. segments further localize BPH-resistant gene. introgression lines, 1–6O. detected chromosomes 1, 2, 6, or/and 10. The dominant BPH resistant gene, tentatively named Bph13(t), was mapped chromosome being 6.1 5.5 cM away two microsatellite markers RM240 RM250, respectively. transfer localization this gene fromO. will contribute improvement rice.
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