Phylogenetic analysis of GR43a-like receptor genes from insects. The analysed genes included: Heliothis virescens OR4 (CAD31946) (Krieger et al., 2002), Danaus plexippus OR4 (EHJ77681) (Zhan et al., 2011), Bombyx mori GR9 (NP_001124345) (Sato et al., 2011) (Wanner and Robertson, 2008), Bombus impatiens GR43a (XP_003486787), Nasonia vitripennisGR3 (NP_001164386) (Robertson et al., 2010), Apis mellifera GR43a (XP_001121326), Drosophila melanogaster GR43a (NP_523650) (Sato et al., 2011), Tribolium castaneum GR20 (EFA05758), Anopheles gambiae GR43a (XP_318100), Camponotus floridanus GR43a (EFN61344), Aedes aegypti GR43a (XP_001658898), Culex quinquefasciatus GR43a (XP_001842305), and Papilio xuthus GPCR (BAF91710) (Ozaki et al., 2011)