Marker-assisted selection of two-line hybrid rice for disease resistance to rice blast and bacterial blight

摘要

Blast and bacterial blight are serious diseases around the major rice-growing area in the world. Genetic breeding by using rice resistance genes per se would be an economic and efficient way to combat these biotic stresses. Guangzhan63S (GZ63S) is an elite photoperiodic and thermo-sensitive male sterile (P/TGMS) line from which many widely cultivated two-line super-hybrid varieties in the Yangzi River basin have been derived. However, GZ63S is susceptible to rice blast as well as bacterial blight.