Fig. 4: Opsin gene family in C. dipterum.
From: Genomic adaptations to aquatic and aerial life in mayflies and the origin of insect wings
a opsin gene complement in insect phylogeny (‘ancestral odonata’ refers to the Opsin complement of the last common ancestor of this lineage as inferred in ref. 72). b Evolutionary scenario for the expansions of three families of opsins in mayflies. c Volcano plot showing differential gene expression between male and female adult heads. d Blue-Opsin cluster in the C. dipterum genome browser. Upper and middle track show expression of Blue-Ops1 in late embryos (st. E14 dpf) and adult female heads, while lower track shows high expression of both Blue-Ops1and Blue-Ops2 in male adult heads. e, f Expression of UV-Ops2 in the compound eye of a male (e) and a female (f). g, h UV-Ops4 high expression in the turbanate eye of a male (g) is not detectable in the female (h). TE: turbanate eye, CE: compound eye. Scale bars: 50 μm. Ops gene expression was detected in three independent experiments with n > 5 retinas each.
