Photobehaviours guided by simple photoreceptor systems

E Brodrick, G Jékely - Animal Cognition, 2023 - Springer
Light provides a widely abundant energy source and valuable sensory cue in nature. Most
animals exposed to light have photoreceptor cells and in addition to eyes, there are many …

Retinoids in the visual cycle: role of the retinal G protein-coupled receptor

EH Choi, A Daruwalla, S Suh, H Leinonen… - Journal of lipid …, 2021 - ASBMB
Driven by the energy of a photon, the visual pigments in rod and cone photoreceptor cells
isomerize 11-cis-retinal to the all-trans configuration. This photochemical reaction initiates …

The last common ancestor of most bilaterian animals possessed at least nine opsins

MD Ramirez, AN Pairett, MS Pankey… - Genome biology and …, 2016 - academic.oup.com
The opsin gene family encodes key proteins animals use to sense light and has expanded
dramatically as it originated early in animal evolution. Understanding the origins of opsin …

The genome of the jellyfish Aurelia and the evolution of animal complexity

DA Gold, T Katsuki, Y Li, X Yan, M Regulski… - Nature ecology & …, 2019 - nature.com
We present the genome of the moon jellyfish Aurelia, a genome from a cnidarian with a
medusa life stage. Our analyses suggest that gene gain and loss in Aurelia is comparable to …

Conservation, duplication, and divergence of five opsin genes in insect evolution

R Feuda, F Marletaz, MA Bentley… - Genome biology and …, 2016 - academic.oup.com
Opsin proteins covalently bind to small molecular chromophores and each protein-
chromophore complex is sensitive to particular wavelengths of light. Multiple opsins with …

A gonad-expressed opsin mediates light-induced spawning in the jellyfish Clytia

G Quiroga Artigas, P Lapebie, L Leclere, N Takeda… - Elife, 2018 - elifesciences.org
Across the animal kingdom, environmental light cues are widely involved in regulating
gamete release, but the molecular and cellular bases of the photoresponsive mechanisms …

[PDF][PDF] Box, stalked, and upside-down? Draft genomes from diverse jellyfish (Cnidaria, Acraspeda) lineages: Alatina alata (Cubozoa), Calvadosia cruxmelitensis (Staurozoa) …

A Ohdera, CL Ames, RB Dikow, E Kayal… - …, 2019 - academic.oup.com
Abstract Background Anthozoa, Endocnidozoa, and Medusozoa are the 3 major clades of
Cnidaria. Medusozoa is further divided into 4 clades, Hydrozoa, Staurozoa, Cubozoa, and …

Prolific origination of eyes in Cnidaria with co-option of non-visual opsins

N Picciani, JR Kerlin, N Sierra, AJM Swafford… - Current Biology, 2018 - cell.com
Animal eyes vary considerably in morphology and complexity and are thus ideal for
understanding the evolution of complex biological traits [1]. While eyes evolved many times …

Co-expression of xenopsin and rhabdomeric opsin in photoreceptors bearing microvilli and cilia

O Vöcking, I Kourtesis, SC Tumu, H Hausen - Elife, 2017 - elifesciences.org
Ciliary and rhabdomeric opsins are employed by different kinds of photoreceptor cells, such
as ciliary vertebrate rods and cones or protostome microvillar eye photoreceptors, that have …

Nematostella vectensis exemplifies the exceptional expansion and diversity of opsins in the eyeless Hexacorallia

KJ McCulloch, LS Babonis, A Liu, CM Daly… - EvoDevo, 2023 - Springer
Background Opsins are the primary proteins responsible for light detection in animals.
Cnidarians (jellyfish, sea anemones, corals) have diverse visual systems that have evolved …