Table 1.

Numbers of annotated odorant-binding proteins (OBP) genes in different insects [27,28,29].

	Species	OBP Gene Number
	D. melanogaster	52
	D. simulans	52
	D. sechellia	51
	D. yakuba	55
	D. erecta	50
	D. ananassae	50
	D. pseudoobscura	45
	D. persimilis	45
	D. willistoni	62
	D. mojavensis	43
	D. virilis	41
	D. grimshaw	46
	Anophele gambiae	69
	Culex quinquefasciatus	109
	Aedes aegypti	111
	Tribolium castaneum	49
	Apis mellifera	21
	Blatella germanica	109
	Solenopsis invicta	18
	Bombyx mori	44