Projects per year
Abstract
Vertebrate vision is accomplished through light-sensitive photopigments consisting of an opsin protein bound to a chromophore. In dim light, vertebrates generally rely on a single rod opsin [rhodopsin 1 (RH1)] for obtaining visual information. By inspecting 101 fish genomes, we found that three deep-sea teleost lineages have independently expanded their RH1 gene repertoires. Among these, the silver spinyfin (Diretmus argenteus) stands out as having the highest number of visual opsins in vertebrates (two cone opsins and 38 rod opsins). Spinyfins express up to 14 RH1s (including the most blueshifted rod photopigments known), which cover the range of the residual daylight as well as the bioluminescence spectrum present in the deep sea. Our findings present molecular and functional evidence for the recurrent evolution of multiple rod opsin-based vision in vertebrates.
Original language | English |
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Pages (from-to) | 588-592 |
Number of pages | 5 |
Journal | Science |
Volume | 364 |
Issue number | 6440 |
DOIs | |
Publication status | Published - 10 May 2019 |
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Dive into the research topics of 'Vision using multiple distinct rod opsins in deep-sea fishes'. Together they form a unique fingerprint.Projects
- 2 Finished
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Transcriptome sequencing and functional characterisation of craniate non-visual sensory systems and their adaptation to diverse light environments
Davies, W. (Investigator 01), Hunt, D. (Investigator 02), Carter, K. (Investigator 04), Hemmi, J. (Investigator 04) & Partridge, J. (Investigator 05)
ARC Australian Research Council
1/01/14 → 30/06/17
Project: Research
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Investigating the Molecular Mechanisms Underlying Non-Visual Photoreception and their Implications in the Treatment of Human Neurological Disaease
Davies, W. (Investigator 01)
ARC Australian Research Council
1/01/11 → 31/01/17
Project: Research