Fig. 3
From: Penaeid shrimp genome provides insights into benthic adaptation and frequent molting
Opsin and iGluR gene family in the shrimp genome. a Picture of the L. vannamei eyes and ommatidia. b Opsin genes of L. vannamei in comparison with those in the genomes of various arthropods. The number of visual and nonvisual type opsin genes, including pteropsin (Ptero), RGR-like (RGR), arthropsin (Arth), Rh7-like (Rh7) were identified using sequence alignment with known opsins and GPCR-domain searches (Supplementary Fig. 18). c Phylogenetic tree of the opsin gene family in arthropods. Six clades of opsins in the L. vannamei genome were observed (red). The genes in largest clade are specifically expanded opsins in the L. vannamei genome, which are also tandemly duplicated. The arrow indicates the transcriptional orientation. d Expression of opsin genes (FPKM>1) during different larval stages of L. vannamei. e Expansion of ionotropic glutamate receptor (iGluR) genes in L. vannamei. f Expression of iGluR genes in different tissues: hemocyte (Hc), antennal gland (Ant), hepatopancreas (Hp), stomach (St), intestine (In), muscle (Ms), lymphoid organ (Ok), gill (Gi), eyestalk (Es), brain (Br), thoracic ganglion (Tg), ventral ganglion (Vn), epidermis (Epi), heart (Ht). GPCR G protein-coupled receptor
