Phylogenetic tree of the FPPS genes from B. mori and other insects. Based on the multiple alignments of the amino acid sequences of FPPS proteins from B. mori and other insects, a phylogenetic tree was constructed using the neighbor-joining method with 1000bootstrap replicates after removing the highly divergent sequences at the N- or C-terminus. Bootstrap values > 60% are marked. Bm, Bombyx mori; Dm, Drosophila melanogaster; Aga, Anopheles gambiae; Am, Apis mellifera; Tc, Tribolium castaneum; Dp, Danaus plexippus; Cf, Choristoneura fumiferana; Hm, Heliconius melpomene; Mu, Mythimna unipuncta; Agi, Agrotis ipsilon; Aa, Aedes aegypti; Cq, Culex quinquefasciatus; Agr, Anthonomus grandis; Dj, Dendroctonus jeffreyi; Nv, Nasonia vitripennis.