2.7 Comparative genomics analysis
OrthoFinder v2.5.1 (Emms and Kelly, 2015, 2019) was used to analysis the orthologous and paralogous genes of 10 insect genomes including D. melanogaster (assembly accession: GCF_000001215.4), Plutella xylostella (assembly accession: GCA_019096205.1), Danaus plexippus (assembly accession: GCF_009731565.1), Antheraea yamamai (Kim. Et al., 2018), B. mori (assembly accession: GCF_014905235.1), A. pernyi (assembly accession: GCA_015888305.1), C. japonica (in this study), Samia ricini (assembly accession: GCA_014132275.1), Spodoptera frugiperda (assembly accession: GCF_011064685.1), H. armigera(assembly accession: GCF_002156985.1). And D. melanogaster was selected as outgroup.