Allele, molecular marker, and primer pair of rice HPS1 gene, and applications thereof

A method for identifying rice disease resistance, comprising:

• a) extracting genomic deoxyribonucleic acid (DNA) from leaf tissue of a rice plant;
• b) amplifying the extracted DNA by polymerase chain reaction (PCR) using a primer pair consisting of SEQ ID NO:
• 4 and SEQ ID NO:
• 5;
• c) electrophoretically detecting a PCR product;
• and
• d) identifying the rice plant as having high disease resistance when the PCR product has one DNA band at 200 bp-300 bp and no DNA band at 400-500 bp as compared to plant having a DNA band at 400-500 bp and identifying the rice plant as having low disease resistance when there is one DNA band at the 400-500 bp and no DNA band at the 200 bp-300 bp as compared to plant having a DNA band at 200-300 bp;
• wherein the disease resistance comprises resistance to rice blast, resistance to sheath blight, and resistance to bacterial leaf blight.