1Anhui Science and Technology University，Chuzhou 233100，Anhui，China；2Beijing Vegetable Research Center，Beijing Academy of Agriculture and Forestry Sciences，State Key Laboratory of Vegetable Biobreeding，Beijing Key Laboratory of Vegetable Germplasm Improvement，Key Laboratory of Horticultural Crop Biology and Germplasm Creation in North China，National Engineering Research Center for Vegetables，Beijing 100097，China
Abstract：Pepper is an important vegetable and ecnomic crop in China．Anthracnose seriously threatens peppers production．Breeding resistant varieties is the most basic and effevtive control measure．In this study，18 chilli pepper inbred lines were used to identify the pathogenicity of 5 different pepper anthracnose pathogens，and the strong pathogenic strains were selected to identify the aritifical inoculation resistance of 529 pepper materials．The results showed that among 402 chilii pepper inbred lines，1 showed immunity，1 showed high resistance，29 showed disease resistance，62 showed disease tolerance，and the remaining 309 materials showed susceptibility．Among 127 chilli pepper hybrid materials，3 showed immunity，1 showed high resistance，23 showed disease resistance，24 showed disease tolerance，and the remaining 76 showed susceptibility．A recombinant inbred line population was structured using parents with significant differences in pepper anthracnose resistance．The mixed major gene and polygene inheritance model of plant quantitative traits was used to conduct pepper anthracnose resistance．The results showed that the multigenic additive epistatic genetic model was the optimal model．
