Fig. 6
From: Massive expansion and diversity of nicotinic acetylcholine receptors in lophotrochozoans
Diversity in temporal and spatial expression of nAChR genes in molluscs. a Heat maps nAChR expression during development in C. gigas, P. f. martensii and M. yessoensis. b expression patterns of nAChR genes in different tissues in C. gigas, P. f. martensii, M. yessoensis, B. platifrons and M. philippinarum. E, egg; TC, two cells; FC, four cells; EM, early morula; M, morula; B, blastula; RM, rotary movement; FS, free swimming; EG, early gastrula; G, gastrula; T1, trochophore 1; T2, trochophore 2; T3, trochophore 3; T4, trochophore 4; T5, trochophore 5; ED1, early D-larva 1; ED2, early D-larva 2; D1, D-larva 1; D2, D-larva 2; D3, D-larva 3; D4, D-larva 4; D5, D-larva 5; D6, D-larva 6; D7, D-larva 7; EU1, Early umbo larva 1; EU2, Early umbo larva 2; U1, umbo larva 1; U2, umbo larva 2; U3, umbo larva 3; U4, umbo larva 4; U5, umbo larva 5; U6, umbo larva 6; LU1, late umbo larva 1; LU2, late umbo larva 2; P1, pediveliger 1; P2, pediveliger 2; S, spat; J, juvenile; Fe, fertilization; ET, early trochophore; DF, D-larvae before feeding; EU, early umbo larvae; PV, post-veliger; CT, 2–8 cells. M, mantle; Di, digestive gland; A, adductor muscle; F, foot; Go, gonad; Fg, female gonad; Mg, male gonad; PS, pearl sac at 180 d; MP, mantle pallium; MC, mantle central; He, hemocyte; Lp, labial palp; Ey, eye; Ms., smooth muscle; Mt, striated muscle; VM, visceral mass