Corn ear rot resistant molecular marker and gene and application

The invention belongs to the technical field of functional molecular markers, and discloses a corn ear rot resistance molecular marker and a gene and application. A corn ear rot resistance major gene zmSRR1 is cloned, the fusarium verticillioides ear rot resistance effect of the gene is verified through transgenosis, by comparing the sequences of the gene in 13 disease-resistant inbred lines and 12 susceptible inbred lines, 26 non-synonymous natural variation sites in the zmSRR1 gene are found, the variation sites of the gene in 142 corn inbred lines are detected, candidate gene association analysis is carried out in combination with disease-resistant phenotypes, three natural variation sites influencing the resistance of the corn ear rot are confirmed, the three variation sites are found to be combined into five haplotypes in a natural material, one of the five haplotypes is highly susceptible to ear rot, the variation sites are detected, the haplotype is confirmed, the type of the disease-resistant gene in