Genome SNP Analysis And Major Agronomic Traits Allele Gene Of Four Rice Restorers

Rice is one of the world’s most important food crops, Rice Breeding restorer not onlymeet the different requirements of different ecological regions, but also improve theresistance of hybrid、 yield and quality. According to the results of whole-genomesequencing of4rice varieties, which provided by the National Center for Gene ResearchSchool of Chinese Academy of Sciences, and find that the total number SNPs of these ricespecies is528,468and the total density is2.35SNPs/1Kb, the number of SNP betweenchanghui121and changhui T025is least, which is232860SNPs and0.6093SNP/kbrespectively, the number of SNP between changhuiT025and changhui0791is most,whichis322380SNP and0.8436SNP/kb respectively. changhui121and changhui T025`s geneticbackground is most similar. The twelfth chromosome SNP distribution is uniform, andthere are significant SNP enrichment and the deletion region in the other11chromosomes.The first chromosome has most SNPs, which is131210. The first chromosome has leastSNPs, which is68202.The results showed：between our rice varieties and Nipponbare, regulator of grain sizegene GS3have1SNP, Grains.Height Date-7gene Ghd7have24SNPs, Wx have14SNPs,ALKali digestion gene ALK have9SNPs, reteogade regulated male sterility gene have18SNPs, Ideotype gene IPA1have1SNPs, elongated uppermost internode-1gene EUI1have10SNPs, Tiller Angle Controlling gene TAC1have10SNPs, heading date minor QTLDTH2have21SNPs, Guanine nucleotide exchange factor GPA2have13SNPs,ALKaline/neutral invertase gene have9SNPs.In the four rice varieties, eight of these genes（GS3、Ghd7、ALK、Rf1、IPA1、EUI1、TAC1、DTH2、OsCYT-INV1） is Wild-type,chagnhui121、changhuiT025is Wxinallele and Wxballele, changhui891and changhui0791is Wxballele,changhui891、changhui121、changhui T025is dth2allele, changhui0791isDTH2allele.