Inheritance of resistance to Chinese stripe rust on Australian wheat variety Sunco

Abstract

Australian wheat variety Sunco carry good adult plant resistance to Chinese stripe rust races CY32. Wheat variety Chuanyu12 released in Sichuan province is terrible adult plant susceptible. A DH population developed from Sunco/Chuanyu12 was used for genetic analysis of Chinese stripe rust races resistance on Sunco. The results show Sunco combines one major resistance gene with two minor genes, and the major gene is resistant or middle resistant to stripe rust. If carried only minor gene (s), the material will be susceptible to stripe rust, if combined major gene with minor gene (s), it can express good adult plant resistance to stripe rust.