Brain transcriptome of gobies inhabiting natural CO2 seeps reveal acclimation strategies to long‐term acidification
Abstract Ocean acidification (OA) is known to affect the physiology, survival, behaviour and fitness of various fish species with repercussions at the population, community and ecosystem levels. Some fish species, however, seem to acclimate rapidly to OA conditions and even thrive in acidified envir...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2023-07-01
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| Series: | Evolutionary Applications |
| Subjects: | |
| Online Access: | https://doi.org/10.1111/eva.13574 |
| _version_ | 1827894538953293824 |
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| author | Sneha Suresh Alice Mirasole Timothy Ravasi Salvatrice Vizzini Celia Schunter |
| author_facet | Sneha Suresh Alice Mirasole Timothy Ravasi Salvatrice Vizzini Celia Schunter |
| author_sort | Sneha Suresh |
| collection | DOAJ |
| description | Abstract Ocean acidification (OA) is known to affect the physiology, survival, behaviour and fitness of various fish species with repercussions at the population, community and ecosystem levels. Some fish species, however, seem to acclimate rapidly to OA conditions and even thrive in acidified environments. The molecular mechanisms that enable species to successfully inhabit high CO2 environments have not been fully elucidated especially in wild fish populations. Here, we used the natural CO2 seep in Vulcano Island, Italy to study the effects of elevated CO2 exposure on the brain transcriptome of the anemone goby, a species with high population density in the CO2 seep and investigate their potential for acclimation. Compared to fish from environments with ambient CO2, gobies living in the CO2 seep showed differences in the expression of transcripts involved in ion transport and pH homeostasis, cellular stress, immune response, circadian rhythm and metabolism. We also found evidence of potential adaptive mechanisms to restore the functioning of GABAergic pathways, whose activity can be affected by exposure to elevated CO2 levels. Our findings indicate that gobies living in the CO2 seep may be capable of mitigating CO2‐induced oxidative stress and maintaining physiological pH while meeting the consequent increased energetic costs. The conspicuous difference in the expression of core circadian rhythm transcripts could provide an adaptive advantage by increasing the flexibility of physiological processes in elevated CO2 conditions thereby facilitating acclimation. Our results show potential molecular processes of acclimation to elevated CO2 in gobies enabling them to thrive in the acidified waters of Vulcano Island. |
| first_indexed | 2024-03-12T22:08:31Z |
| format | Article |
| id | doaj.art-e716bbf761884152b6cdbeb7cf9eae80 |
| institution | Directory Open Access Journal |
| issn | 1752-4571 |
| language | English |
| last_indexed | 2024-03-12T22:08:31Z |
| publishDate | 2023-07-01 |
| publisher | Wiley |
| record_format | Article |
| series | Evolutionary Applications |
| spelling | doaj.art-e716bbf761884152b6cdbeb7cf9eae802023-07-24T07:47:08ZengWileyEvolutionary Applications1752-45712023-07-011671345135810.1111/eva.13574Brain transcriptome of gobies inhabiting natural CO2 seeps reveal acclimation strategies to long‐term acidificationSneha Suresh0Alice Mirasole1Timothy Ravasi2Salvatrice Vizzini3Celia Schunter4Swire Institute of Marine Science, School of Biological Sciences The University of Hong Kong Hong Kong SAR ChinaDepartment of Integrative Marine Ecology Ischia Marine Centre, Stazione Zoologica Anton Dohrn Naples ItalyMarine Climate Change Unit Okinawa Institute of Science and Technology Graduate University Onna‐son JapanDepartment of Earth and Marine Sciences University of Palermo Palermo ItalySwire Institute of Marine Science, School of Biological Sciences The University of Hong Kong Hong Kong SAR ChinaAbstract Ocean acidification (OA) is known to affect the physiology, survival, behaviour and fitness of various fish species with repercussions at the population, community and ecosystem levels. Some fish species, however, seem to acclimate rapidly to OA conditions and even thrive in acidified environments. The molecular mechanisms that enable species to successfully inhabit high CO2 environments have not been fully elucidated especially in wild fish populations. Here, we used the natural CO2 seep in Vulcano Island, Italy to study the effects of elevated CO2 exposure on the brain transcriptome of the anemone goby, a species with high population density in the CO2 seep and investigate their potential for acclimation. Compared to fish from environments with ambient CO2, gobies living in the CO2 seep showed differences in the expression of transcripts involved in ion transport and pH homeostasis, cellular stress, immune response, circadian rhythm and metabolism. We also found evidence of potential adaptive mechanisms to restore the functioning of GABAergic pathways, whose activity can be affected by exposure to elevated CO2 levels. Our findings indicate that gobies living in the CO2 seep may be capable of mitigating CO2‐induced oxidative stress and maintaining physiological pH while meeting the consequent increased energetic costs. The conspicuous difference in the expression of core circadian rhythm transcripts could provide an adaptive advantage by increasing the flexibility of physiological processes in elevated CO2 conditions thereby facilitating acclimation. Our results show potential molecular processes of acclimation to elevated CO2 in gobies enabling them to thrive in the acidified waters of Vulcano Island.https://doi.org/10.1111/eva.13574anemone gobybrainclimate changeocean acidificationtranscriptomics |
| spellingShingle | Sneha Suresh Alice Mirasole Timothy Ravasi Salvatrice Vizzini Celia Schunter Brain transcriptome of gobies inhabiting natural CO2 seeps reveal acclimation strategies to long‐term acidification Evolutionary Applications anemone goby brain climate change ocean acidification transcriptomics |
| title | Brain transcriptome of gobies inhabiting natural CO2 seeps reveal acclimation strategies to long‐term acidification |
| title_full | Brain transcriptome of gobies inhabiting natural CO2 seeps reveal acclimation strategies to long‐term acidification |
| title_fullStr | Brain transcriptome of gobies inhabiting natural CO2 seeps reveal acclimation strategies to long‐term acidification |
| title_full_unstemmed | Brain transcriptome of gobies inhabiting natural CO2 seeps reveal acclimation strategies to long‐term acidification |
| title_short | Brain transcriptome of gobies inhabiting natural CO2 seeps reveal acclimation strategies to long‐term acidification |
| title_sort | brain transcriptome of gobies inhabiting natural co2 seeps reveal acclimation strategies to long term acidification |
| topic | anemone goby brain climate change ocean acidification transcriptomics |
| url | https://doi.org/10.1111/eva.13574 |
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