Method for creating novel multi-resistance rice germplasm by using molecular marker
A technology of molecular markers and new germplasm, applied in the direction of botanical equipment and methods, applications, plant gene improvement, etc., can solve problems that have not yet been seen
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[0028] S1, in order to carry the bacterial blight resistance gene Xa at the same time 7 、Xa 21 and brown planthopper resistance gene Bph 14 、Bph 15 The material (HZ02414) is the donor parent P 2 , to carry the rice blast resistance target gene Pi 1 , Pita's material (HZ02231) is the donor parent P 3 , to carry the rice blast resistance target gene Pi 9 and bacterial blight resistance target gene Xa 23 The material (HZ02455) is the donor parent P 4 , using Huang Huazhan, an excellent material to be improved that does not contain these target genes for resistance to diseases and insect pests, as the recipient parent P 1 , and planted separately;
[0029] S2, the P 2 ,P 3 ,P 4 respectively with P 1 Hybrid, get 3 F's 1 , respectively named A, B, C, each F 1 More than 50 seeds;
[0030] S3, A, B, C seeds and P obtained by planting S2 1 According to the SNP molecular markers closely linked with the target gene of resistance to disease and insect pests, the individual...
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