Genomes of the rice pest brown planthopper and its endosymbionts reveal complex complementary contributions for host adaptation

Table 2 Numbers of validated peripheral chemoreception genes in insect genomes

		Insect order
		Diptera				Hymenoptera		Coleoptera	Lepidoptera	Hemiptera
Function	Gene family ^a	D.m	A.g	A.a	C.p	A.m	N.v	T.c	B.m	A.p	N.l
Chemosensory	OBP	52	81	66	53	21	90	49 (1)	43 (1)	14 (1)	11
	CSP	4	8	-	-	6	-	19 (1)	19 (2)	10 (1)	17
Olfactory	OR	62	79	131	180	170	301	341	48	69 (10)	50
Gustatory	GR	68	76	91 (23)	123	10	58	63	65	75 (2)	10
Food range		P	P	P	P	P	P	P	O	O	M
Food and host		Fruits, plant wrack	Nymph: bacteria, algae; male: plant juice; female: animal blood			Honey, pollen	Fly species	Grain, oilseed	Mulberry, Morus rubra, M. nigra, Osage Orange	Legumes, Fabaceae	Rice
Mouthpart		Licking	Chewing Sucking			Chewing-sucking		Chewing	Chewing	Sucking

^aOBP, odorant binding protein; CSP, chemosensory protein; OR, odorant receptor; GR, gustatory receptor. Numbers represent putative functional genes and pseudogenes (in parentheses when available). Abbreviations for food ranges: P, polyphagous insect; O, oligophagous insect; M, monophagous insect. Abbreviations of insect species: D.m, Drosophila melanogaster; A.g, Anopheles gambiae; A.a, Aedes aegypti; C.p, Culex quinquefasciatus; A.m, Apis mellifera; N.v, Nasonia vitripennis; T.c, Tribolium castaneum; B.m, Bombyx mori; A.p, Acyrthosiphon pisum; N.l, Nilaparvata lugens.

ISSN: 1474-760X