Co-dominant marker of anti-pyricularia grisea cav. gene pi5 in rice and special primers thereof

The invention belongs to the field of molecular biology and in particular relates to a molecular marker for detecting an anti-pyricularia grisea cav. gene in rice and special primers thereof. The molecular marker is a co-dominant molecular marker pi5-1-4 of the anti-pyricularia grisea cav. gene pi5 in rice. The molecular marker uses a primer pair SEQ ID NO:1 and SEQ ID NO:2 to amplify a nucleotide sequence from the total DNA of rice and can be applied to molecular marker-assisted selection of pi5 in rice pyricularia grisea cav. resistance breeding to improve the disease-resistant variety breeding efficiency and reduce the workload of field identification.