Rapid evolution fuels transcriptional plasticity to ocean acidification

Global Change Biology, Journal Year: 2022, Volume and Issue: 28(9), P. 3007 - 3022

Published: March 3, 2022

Ocean acidification (OA) is postulated to affect the physiology, behavior, and life-history of marine species, but potential for acclimation or adaptation elevated pCO

Language: Английский

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Adaptive mechanism of the marine bacterium Pseudomonas sihuiensis-BFB-6S towards pCO2 variation: Insights into synthesis of extracellular polymeric substances and physiochemical modulation

International Journal of Biological Macromolecules, Journal Year: 2024, Volume and Issue: 261, P. 129860 - 129860

Published: Feb. 1, 2024

Language: Английский

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Bioassay complexities—exploring challenges in aquatic chemosensory research

Frontiers in Ecology and Evolution, Journal Year: 2024, Volume and Issue: 11

Published: Jan. 3, 2024

Chemosensory science, the study of how organisms produce and assess olfactory information, is central to our understanding interact gain information about their environment. Signaling cue identification in aquatic systems lags behind knowledge terrestrial insects due analytical challenges aqueous environments. Unambiguous, reliable, fast behavioral assays evaluate biological activity function a chemosensory are critical understand signaling enable research into ecology, evolution, threats changing Yet, range anthropomorphic assumptions made this field create additional interpret data generated. Here, we common including assumed readiness individuals respond, lack on animals’ physiological social status, pre-experimental exposure, innate or learned character responses, acclimation habituation impact animals upon own These factors lead significant variability responses bioassays, both laboratory setups. In light limited cues’ chemical structure, active concentrations samples, undetermined response thresholds, methods mitigation minimize differences between studies. We conclude that currently it nearly impossible compare results from studies undertaken different ecosystems, laboratories, time points. There an urgent need for standardization methods, recording environmental conditions, individuals’ physiology, physical, avoid conflicting contradicting when comparing Including these parameters experimental design interpretation will provide deeper communication, reduce unconscious bias studies, can help explain substantial individuality cues stress.

Language: Английский

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Novel Field Experiment on Alkalinity Enhancement in Intertidal Environments—A Trailblazer for Natural Climate Solutions

Journal of Geophysical Research Biogeosciences, Journal Year: 2025, Volume and Issue: 130(3)

Published: Feb. 27, 2025

Abstract One recently proposed approach to reduce atmospheric CO 2 concentrations is marine alkalinity enhancement. This technique increases the uptake capacity of seawater through weathering fine‐grained (mafic) rocks and minerals in environments. The process has been extensively tested laboratory studies verified by numerical models. Field experiments scaling under natural conditions are still lacking. In a methodological approach, novel situ experiment was designed installed salt marsh at Ria Formosa coastal lagoon, southern Portugal. comprised deployments different sizes olivine basalt substrates, control site, which were tidally submerged twice day. A monthly monitoring scheme supernatant porewater properties from each deployment site established, procedures for temperature, salinity, oxygen, pH, total alkalinity, nutrient, trace metal analyses defined. paper devoted methods describes design, protocol analyses, an evaluation experimental performance reliability. Data first 6 months presented validation experiment. They demonstrated elevated water samples, mostly after deployments, while pH reflect conditions. Significant differences observed between treatments background monitored during with strengths, limitations, recommendations upscaling as removal measure, servicing, subsequent investigations.

Language: Английский

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Brain transcriptome of gobies inhabiting natural CO₂ seeps reveal acclimation strategies to long‐term acidification

Evolutionary Applications, Journal Year: 2023, Volume and Issue: 16(7), P. 1345 - 1358

Published: June 29, 2023

Ocean acidification (OA) is known to affect the physiology, survival, behaviour and fitness of various fish species with repercussions at population, community ecosystem levels. Some species, however, seem acclimate rapidly OA conditions even thrive in acidified environments. The molecular mechanisms that enable successfully inhabit high CO2 environments have not been fully elucidated especially wild populations. Here, we used natural seep Vulcano Island, Italy study effects elevated exposure on brain transcriptome anemone goby, a population density investigate their potential for acclimation. Compared from ambient CO2, gobies living showed differences expression transcripts involved ion transport pH homeostasis, cellular stress, immune response, circadian rhythm metabolism. We also found evidence adaptive restore functioning GABAergic pathways, whose activity can be affected by Our findings indicate may capable mitigating CO2-induced oxidative stress maintaining physiological while meeting consequent increased energetic costs. conspicuous difference core could provide an advantage increasing flexibility processes thereby facilitating results show acclimation enabling them waters Island.

Language: Английский

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Transcriptomic responses in the nervous system and correlated behavioural changes of a cephalopod exposed to ocean acidification

BMC Genomics, Journal Year: 2024, Volume and Issue: 25(1)

Published: June 25, 2024

Abstract Background The nervous system is central to coordinating behavioural responses environmental change, likely including ocean acidification (OA). However, a clear understanding of neurobiological OA lacking, especially for marine invertebrates. Results We evaluated the transcriptomic response (CNS) and eyes two-toned pygmy squid ( Idiosepius pygmaeus ) conditions, using de novo transcriptome assembly created with long read PacBio ISO-sequencing data. then correlated patterns gene expression CO 2 treatment levels OA-affected behaviours in same individuals. induced within related various different types neurotransmission, neuroplasticity, immune function oxidative stress. These molecular changes may contribute OA-induced changes, as suggested by correlations among profiles, behaviours. Conclusions This study provides first insights into effects on cephalopod correlates whole animal responses, helping bridge gaps our knowledge between change responses.

Language: Английский

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Long non‐coding RNAs mediate fish gene expression in response to ocean acidification

Evolutionary Applications, Journal Year: 2024, Volume and Issue: 17(2)

Published: Feb. 1, 2024

Abstract The majority of the transcribed genome does not have coding potential but these non‐coding transcripts play crucial roles in transcriptional and post‐transcriptional regulation protein‐coding genes. Regulation gene expression is important shaping an organism's response to environmental changes, ultimately impacting their survival persistence as population or species face global change. However, long RNAs (lncRNAs), when confronted with remain largely unclear. To explore role lncRNAs fish exposed ocean acidification (OA), we analyzed publicly available brain RNA‐seq data from a coral reef Acanthochromis polyacanthus . We annotated its examined changes intergenic (lincRNAs) between A. samples natural CO 2 seep nearby control site. identified 4728 lncRNAs, including 3272 lincRNAs this species. Remarkably, 93.03% were species‐specific. Among 125 highly expressed 403 differentially elevated , observed that either neighboring potentially trans‐regulating genes associated pH regulation, neural signal transduction, ion transport, which are known be OA fish. In summary, may facilitate acclimation mediate responses by modulating genes, offers insight into regulatory mechanisms underlying changes.

Language: Английский

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Neuro-molecular characterization of fish cleaning interactions

Scientific Reports, Journal Year: 2022, Volume and Issue: 12(1)

Published: May 19, 2022

Abstract Coral reef fish exhibit a large variety of behaviours crucial for fitness and survival. The cleaner wrasse Labroides dimidiatus displays cognitive abilities during interspecific interactions by providing services ectoparasite cleaning, thus serving as good example to understand the processes complex social behaviour. However, little is known about molecular underpinnings cooperative behaviour between L. potential client ( Acanthurus leucosternon ). Therefore, we investigated mechanisms in three regions brain (Fore-, Mid-, Hindbrain) interaction these fishes. Here show, using transcriptomics, that most transcriptional response both species was regulated Hindbrain Forebrain interacting responses involved immediate early gene alteration, dopaminergic glutamatergic pathways, expression neurohormones (such isotocin) steroids (e.g. progesterone estrogen). In contrast, client, fewer alterations were found, mostly involving pituitary hormone responses. particular pathways found suggested synaptic plasticity, learning memory wrasse, while indicated stress relief.

Language: Английский

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Upwelling‐level acidification and pH/pCO₂ variability moderate effects of ocean acidification on brain gene expression in the temperate surfperch, Embiotoca jacksoni

Molecular Ecology, Journal Year: 2022, Volume and Issue: 31(18), P. 4707 - 4725

Published: July 13, 2022

Acidification-induced changes in neurological function have been documented several tropical marine fishes. Here, we investigate whether similar patterns of impacts are observed a temperate Pacific fish that naturally experiences regular and often large shifts environmental pH/pCO2 . In two laboratory experiments, tested the effect acidification, as well variability, on gene expression brain tissue common kelp forest/estuarine fish, Embiotoca jacksoni. Experiment 1 employed static pH treatments (target = 7.85/7.30), while 2 incorporated variable oscillated around corresponding with same mean 7.85/7.70) an eight-day cycle (amplitude ± 0.15). We found global differed across level treatments. Additionally, identified differential specific genes enrichment sets (GSEA) comparisons pH. Importantly, variability decreased number differentially expressed detected between high low treatments, interindividual was greater than These results provide important confirmation acidification species and, critically, natural may mediate ocean acidification.

Language: Английский

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Anemonefishes: A model system for evolutionary genomics

F1000Research, Journal Year: 2023, Volume and Issue: 12, P. 204 - 204

Published: Oct. 27, 2023

Anemonefishes are an iconic group of coral reef fish particularly known for their mutualistic relationship with sea anemones. This mutualism is especially intriguing as it likely prompted the rapid diversification anemonefish. Understanding genomic architecture underlying this process has indeed become one holy grails evolutionary research in these fishes. Recently, anemonefishes have also been used a model system to study molecular basis highly complex traits such color patterning, social sex change, larval dispersal and life span. Extensive resources including several high-quality reference genomes, linkage map, various genetic tools enabled identification features controlling some fascinating attributes, but provided insights into mechanisms adaptive responses changing environments. Here, we review latest findings new avenues that led being regarded genomics.

Language: Английский

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