An (omics) perspective on the evolution of vision in deep-sea fishes reveals exceptional adaptations to life in the extreme

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F25%3A10507970" target="_blank" >RIV/00216208:11310/25:10507970 - isvavai.cz</a>

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=uCL~WCI83x" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=uCL~WCI83x</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/1365-2435.70074" target="_blank" >10.1111/1365-2435.70074</a>

Jazyk výsledku

angličtina

Název v původním jazyce

An (omics) perspective on the evolution of vision in deep-sea fishes reveals exceptional adaptations to life in the extreme

Popis výsledku v původním jazyce

In the evolution of vision, changes in the number of visual opsin genes, gene conversion, amino acid sequence mutations, and gene expression levels are common molecular mechanisms in how teleost fishes adapt to different aquatic (light) environments. Visual evolution in challenging environments like the deep sea often pushes this to the extreme.Many adaptations to the visual systems of deep-sea fishes have evolved multiple times convergently or in parallel in different species, for example, morphologically tubular eyes and rod-only retinas, and molecularly rhodopsin duplications. Others are unique to this extreme environment, such as 38 rhodopsins in spinyfins or far-red vision in dragon fishes using a visual pigment plus photosensitizer (bacteriochlorophyll) complex. This illustrates the strength of the selective pressures, including low-light conditions, cold temperatures, and extreme pressure, which act to shape vision at depth.Rod and cone cell identity (and dichotomy) is unclear in some deep-sea fishes, as evidenced by the molecular mismatch with the photoreceptor morphology or among the expressed visual genes (e.g. opsin vs. phototransduction cascade genes). Rod-like cones are found in some deep-sea fishes (e.g. in pearlsides) and are thought to result from cell transmutation, a process in which the gross morphology of the cell resembles rods, but the molecular machinery is typical of cones. In other fish species (e.g. Aulopiformes), there is a mismatch between the expression of opsins and phototransduction cascade genes. The mechanism is unknown but may be caused by transmuted rod-like cones, which have, in addition, co-opted the rod opsin (to replace its cone opsin). Comparative-omic and imaging approaches have the power to detect and evolutionarily explain such intermediate photoreceptor cell types.Leveraging recent advances in the -omics and imaging fields, such as spatial single-cell multi-omics approaches will significantly increase the depth and breadth of the species studied. This dramatically enhances the comparative power of deep-sea fish visual exploration, enabling us to address century-old and newly emerging questions in this exciting field.

Název v anglickém jazyce

An (omics) perspective on the evolution of vision in deep-sea fishes reveals exceptional adaptations to life in the extreme

Popis výsledku anglicky

In the evolution of vision, changes in the number of visual opsin genes, gene conversion, amino acid sequence mutations, and gene expression levels are common molecular mechanisms in how teleost fishes adapt to different aquatic (light) environments. Visual evolution in challenging environments like the deep sea often pushes this to the extreme.Many adaptations to the visual systems of deep-sea fishes have evolved multiple times convergently or in parallel in different species, for example, morphologically tubular eyes and rod-only retinas, and molecularly rhodopsin duplications. Others are unique to this extreme environment, such as 38 rhodopsins in spinyfins or far-red vision in dragon fishes using a visual pigment plus photosensitizer (bacteriochlorophyll) complex. This illustrates the strength of the selective pressures, including low-light conditions, cold temperatures, and extreme pressure, which act to shape vision at depth.Rod and cone cell identity (and dichotomy) is unclear in some deep-sea fishes, as evidenced by the molecular mismatch with the photoreceptor morphology or among the expressed visual genes (e.g. opsin vs. phototransduction cascade genes). Rod-like cones are found in some deep-sea fishes (e.g. in pearlsides) and are thought to result from cell transmutation, a process in which the gross morphology of the cell resembles rods, but the molecular machinery is typical of cones. In other fish species (e.g. Aulopiformes), there is a mismatch between the expression of opsins and phototransduction cascade genes. The mechanism is unknown but may be caused by transmuted rod-like cones, which have, in addition, co-opted the rod opsin (to replace its cone opsin). Comparative-omic and imaging approaches have the power to detect and evolutionarily explain such intermediate photoreceptor cell types.Leveraging recent advances in the -omics and imaging fields, such as spatial single-cell multi-omics approaches will significantly increase the depth and breadth of the species studied. This dramatically enhances the comparative power of deep-sea fish visual exploration, enabling us to address century-old and newly emerging questions in this exciting field.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10602 - Biology (theoretical, mathematical, thermal, cryobiology, biological rhythm), Evolutionary biology

Projekt

<a href="/cs/project/GA21-31712S" target="_blank" >GA21-31712S: Oko a krev ryb zblízka: molekulární evoluce adaptací u hlubokomořských a sladkovodních ryb</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Functional Ecology

ISSN

0269-8463

e-ISSN

1365-2435

Svazek periodika

39

Číslo periodika v rámci svazku

10

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

10

Strana od-do

2601-2610

Kód UT WoS článku

001499855800001

EID výsledku v databázi Scopus

2-s2.0-105006903918