Gene PAC1 for controlling rice panicle and application
A technology for rice and encoding genes, applied in the fields of application, genetic engineering, plant genetic improvement, etc., can solve the problems of uncontrolled gene cloning and so on
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[0030] Embodiment 1, the acquisition of PAC1 transgenic rice
[0031] 1. Construction of recombinant expression vector pCAMBIA1301-PAC1
[0032] 1. Discovery of the PAC1 gene
[0033] Firstly, a chromosomal segment substitution line with the wild rice line Oryza sativa Yuanjiang as the donor and the cultivated rice variety Teqing as the recipient was constructed. Use this population to map to a site on chromosome 4 to control the panicle (PAC1, panicle architecture control 1) trait of wild rice. Then select the number YIL31 ( figure 1 )'s chromosomal fragment substitution line with the trait of loose ears was backcrossed with Teqing to construct a segregating population, and the PAC1 gene was fine-mapped using the population containing 2400 recessive individuals. Finally, the mutation site controlling the scattered panicles was mapped to the interval of 26kb ( figure 2 ). The chromosome segment substitution lines YIL31 and Teqing in this region were sequenced and compare...
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