1. State Key Laboratory of Silkworm Genome Biology Southwest University Chongqing 400715 China
2. Key Laboratory for Sericulture Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs Southwest University Chongqing 400715 China
3. Chongqing Engineering Research Center of Biomaterial Fiber and Modern Textile College of Sericulture Textile and Biomass Science, Southwest University Chongqing 400715 China