Chinese cabbage (Brassica rapa subsp. pekinensis) originated from China, is one of Chinese people's favorite vegetable and widely planted in east Asia. Soft-rot disease caused by soft-rot pathogens Erwinia carotovora subsp.carotovora (Ecc), is one of the three important diseases of Chinese cabbage, and often causes product quality reduction and bad quality. Due to lacking available disease resistance materials and limitations in understanding the resistant mechanisms, Ecc-resistance breeding has been ...