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Evolution under pressure and the adaptation of visual pigment compressibility in deep-sea environments
- Source :
- Porter, M L, Roberts, N W & Partridge, J C 2016, ' Evolution under pressure and the adaptation of visual pigment compressibility in deep-sea environments ', Molecular Phylogenetics and Evolution, vol. 105, pp. 160-165 . https://doi.org/10.1016/j.ympev.2016.08.007
- Publication Year :
- 2016
-
Abstract
- Understanding the link between how proteins function in animals that live in extreme environments and selection on specific properties of amino acids has proved extremely challenging. Here we present the discovery of how the compressibility of opsin proteins in two evolutionarily distinct animal groups, teleosts and cephalopods, appears to be adapted to the high-pressure environment of the deep-sea. We report how in both groups, opsins in deeper living species are calculated to be less compressible. This is largely due to a common set of amino acid sites (bovRH# 159, 196, 213, 275) undergoing positive destabilizing selection in six of the twelve amino acid physiochemical properties that determine protein compressibility. This suggests a common evolutionary mechanism to reduce the adiabatic compressibility of opsin proteins. Intriguingly, the sites under selection are on the proteins’ outer faces at locations known to be involved in opsin-opsin dimer interactions.
- Subjects :
- 0301 basic medicine
Opsin
genetic structures
Evolution
Acclimatization
Teleost
0206 medical engineering
02 engineering and technology
Biology
Environment
Deep sea
Cephalopod
03 medical and health sciences
Pigment
Genetics
Extreme environment
Animals
Molecular Biology
Ecology, Evolution, Behavior and Systematics
Phylogeny
chemistry.chemical_classification
Opsins
Ecology
Compressibility
Deep-sea
Adaptation, Physiological
Biological Evolution
Amino acid
030104 developmental biology
chemistry
Evolutionary biology
visual_art
visual_art.visual_art_medium
Gene-Environment Interaction
sense organs
Adaptation
020602 bioinformatics
Function (biology)
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- Porter, M L, Roberts, N W & Partridge, J C 2016, ' Evolution under pressure and the adaptation of visual pigment compressibility in deep-sea environments ', Molecular Phylogenetics and Evolution, vol. 105, pp. 160-165 . https://doi.org/10.1016/j.ympev.2016.08.007
- Accession number :
- edsair.doi.dedup.....8fbb04974df593719876c253b273802f