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Shedding new light on opsin evolution
TLDR
This work uses an extensive phylogeny of currently known opsin sequence diversity as a foundation for examining the evolutionary distributions of key functional features within the opsin clade, and illustrates the lability of opsin protein-expression patterns, site-specific functionality and G-protein binding interactions.
Photoreception and vision in the ultraviolet
ABSTRACT Ultraviolet (UV) light occupies the spectral range of wavelengths slightly shorter than those visible to humans. Because of its shorter wavelength, it is more energetic (and potentially more
Molecular diversity of visual pigments in Stomatopoda (Crustacea)
TLDR
Stomatopod crustaceans possess apposition compound eyes that contain more photoreceptor types than any other animal described, and intra- and interspecific clusters of highly similar transcripts suggest that there has been rampant recent gene duplication within the stem crustacean lineage.
Behavioural evidence for polychromatic ultraviolet sensitivity in mantis shrimp
TLDR
It is found that H. trispinosa can discriminate stimuli peaking near 379 nm versus 351 nm in wavelength, suggesting that their wavelength discrimination in the UV is comparable to their performance in the human-visible range.
Ultraviolet filters in stomatopod crustaceans: diversity, ecology and evolution
TLDR
A broad survey of mantis shrimp reveals variability in ocular UV-filters, suggesting a complex evolutionary history for these pigments, and even greater visual complexity than previously appreciated in this group.
Phototransduction in fan worm radiolar eyes
The molecular genetics and evolution of colour and polarization vision in stomatopod crustaceans
TLDR
Using in situ hybridization of opsins in photoreceptor cells, new results are obtained that support the hypothesis of an ancient functional division separating spatial and polarizational vision from colour vision in the stomatopods and suggest that opsins specialized for colour vision have diverged from those devoted to polarization vision, and possibly motion and spatial vision.
Filtering and polychromatic vision in mantis shrimps: themes in visible and ultraviolet vision
TLDR
Stomatopod crustaceans have reached an evolutionary extreme in their use of filter mechanisms to tune photoreception to habitat and behaviour, allowing them to extend the spectral range of their vision both deeper into the ultraviolet and further into the red.
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