Studies on linkage relations of genes controlling disease and insect resistance and nature of endosperm in rice |
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| Authors: | Subijanto Sujadi Gurdev S Khush |
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| Institution: | (1) International Rice Research Institute, Los Baños, Philippines;(2) Present address: Central Research Institute for Agriculture, Bogor, Indonesia |
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| Abstract: | Summary Five hundred F3 lines derived from the cross TN1/IR2061-464-6 were examined for the nature of endosperm and resistance to bacterial blight, brown planthopper, and grassy stunt. TN1 has non-glutinous endosperm and is susceptible to bacterial blight, grassy stunt, and brown planthopper. IR2061-464-6 has a glutinous endosperm and is homozygous resistant to bacterial blight, grassy stunt, and brown planthopper. The F3 data fit the 1:2:1 ratio expected for monogenic control of each trait. A two-way classification for all the traits indicated that these four traits are inherited independently. Thus, it should be possible to recombine these four traits in various combinations in rice varieties. |
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| Keywords: | Oryza sativa rice inheritance of resistance brown planthopper grassy stunt bacterial blight glutinous endosperm linkage |
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