Faculty of Life Sciences Northwestern Polytechnical University Xi''an 710072 P.R.ChinaKey Laboratory of Insect Developmental and Evolutionary Biology CAS Center for Excellence in Molecular Plant Sciences Shanghai Institute of Plant Physiology and Ecology Chinese Academy of Sciences Shanghai 200032.P.R.China;
Key Laboratory of Insect Developmental and Evolutionary Biology CAS Center for Excellence in Molecular Plant Sciences Shanghai Institute of Plant Physiology and Ecology Chinese Academy of Sciences Shanghai 200032.P.R.China;
Faculty of Life Sciences Northwestern Polytechnical University Xi''an 710072 P.R.China;
Bombyx mori; Hox genes; CRISPR/Cas9; embryonic patterning;