1. State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, P.R. China
2. College of Textile and Garments, Southwest University, Chongqing 400715, P.R. China
3. Chongqing Engineering Research Center for Biomaterial Fibers and Modern Textile, Chongqing 400715, China
4. Department of Biosciences, Jamia Millia Islamia (A Central University) New Delhi 110025, India