Transcriptomic responses to seawater acidification among sea urchin populations inhabiting a natural pH mosaic
Abstract Increasing awareness of spatial and temporal variation in ocean pH suggests some marine populations may be adapted to local pH regimes and will therefore respond differently to present‐day pH variation and to long‐term ocean acidification. In the Northeast Pacific Ocean, differences in the...
Published in: | Molecular Ecology |
---|---|
Main Authors: | , , , , |
Other Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2017
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1111/mec.14038 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fmec.14038 https://onlinelibrary.wiley.com/doi/pdf/10.1111/mec.14038 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/mec.14038 https://onlinelibrary.wiley.com/doi/am-pdf/10.1111/mec.14038 |
id |
crwiley:10.1111/mec.14038 |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1111/mec.14038 2024-10-20T14:11:06+00:00 Transcriptomic responses to seawater acidification among sea urchin populations inhabiting a natural pH mosaic Evans, Tyler G. Pespeni, Melissa H. Hofmann, Gretchen E. Palumbi, Stephen R. Sanford, Eric National Science Foundation National Science Foundation University of California Multi Campus Research Programs 2017 http://dx.doi.org/10.1111/mec.14038 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fmec.14038 https://onlinelibrary.wiley.com/doi/pdf/10.1111/mec.14038 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/mec.14038 https://onlinelibrary.wiley.com/doi/am-pdf/10.1111/mec.14038 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#am http://onlinelibrary.wiley.com/termsAndConditions#vor http://doi.wiley.com/10.1002/tdm_license_1 http://onlinelibrary.wiley.com/termsAndConditions http://onlinelibrary.wiley.com/termsAndConditions Molecular Ecology volume 26, issue 8, page 2257-2275 ISSN 0962-1083 1365-294X journal-article 2017 crwiley https://doi.org/10.1111/mec.14038 2024-09-23T04:33:55Z Abstract Increasing awareness of spatial and temporal variation in ocean pH suggests some marine populations may be adapted to local pH regimes and will therefore respond differently to present‐day pH variation and to long‐term ocean acidification. In the Northeast Pacific Ocean, differences in the strength of coastal upwelling cause latitudinal variation in prevailing pH regimes that are hypothesized to promote local adaptation and unequal pH tolerance among resident populations. In this study, responses to experimental seawater acidification were compared among embryos and larvae from six populations of purple sea urchins ( Strongylocentrotus purpuratus ) inhabiting areas that differ in their frequency of low pH exposure and that prior research suggests are locally adapted to seawater pH . Transcriptomic analyses demonstrate urchin populations most frequently exposed to low pH seawater responded to experimental acidification by expressing genes within major ATP ‐producing pathways at greater levels than populations encountering low pH less often. Multiple genes within the tricarboxylic acid cycle, electron transport chain and fatty acid beta oxidation pathways were upregulated in urchin populations experiencing low pH conditions most frequently. These same metabolic pathways were significantly over‐represented among genes both expressed in a population‐specific manner and putatively under selection to enhance low pH tolerance. Collectively, these data suggest natural selection is acting on metabolic gene networks to redirect ATP toward maintaining acid–base homeostasis and enhance tolerance of seawater acidification. As a trade‐off, marine populations more tolerant of low pH may have less energy to put towards other aspects of fitness and to respond to additional ocean change. Article in Journal/Newspaper Ocean acidification Wiley Online Library Pacific Molecular Ecology 26 8 2257 2275 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Abstract Increasing awareness of spatial and temporal variation in ocean pH suggests some marine populations may be adapted to local pH regimes and will therefore respond differently to present‐day pH variation and to long‐term ocean acidification. In the Northeast Pacific Ocean, differences in the strength of coastal upwelling cause latitudinal variation in prevailing pH regimes that are hypothesized to promote local adaptation and unequal pH tolerance among resident populations. In this study, responses to experimental seawater acidification were compared among embryos and larvae from six populations of purple sea urchins ( Strongylocentrotus purpuratus ) inhabiting areas that differ in their frequency of low pH exposure and that prior research suggests are locally adapted to seawater pH . Transcriptomic analyses demonstrate urchin populations most frequently exposed to low pH seawater responded to experimental acidification by expressing genes within major ATP ‐producing pathways at greater levels than populations encountering low pH less often. Multiple genes within the tricarboxylic acid cycle, electron transport chain and fatty acid beta oxidation pathways were upregulated in urchin populations experiencing low pH conditions most frequently. These same metabolic pathways were significantly over‐represented among genes both expressed in a population‐specific manner and putatively under selection to enhance low pH tolerance. Collectively, these data suggest natural selection is acting on metabolic gene networks to redirect ATP toward maintaining acid–base homeostasis and enhance tolerance of seawater acidification. As a trade‐off, marine populations more tolerant of low pH may have less energy to put towards other aspects of fitness and to respond to additional ocean change. |
author2 |
National Science Foundation National Science Foundation University of California Multi Campus Research Programs |
format |
Article in Journal/Newspaper |
author |
Evans, Tyler G. Pespeni, Melissa H. Hofmann, Gretchen E. Palumbi, Stephen R. Sanford, Eric |
spellingShingle |
Evans, Tyler G. Pespeni, Melissa H. Hofmann, Gretchen E. Palumbi, Stephen R. Sanford, Eric Transcriptomic responses to seawater acidification among sea urchin populations inhabiting a natural pH mosaic |
author_facet |
Evans, Tyler G. Pespeni, Melissa H. Hofmann, Gretchen E. Palumbi, Stephen R. Sanford, Eric |
author_sort |
Evans, Tyler G. |
title |
Transcriptomic responses to seawater acidification among sea urchin populations inhabiting a natural pH mosaic |
title_short |
Transcriptomic responses to seawater acidification among sea urchin populations inhabiting a natural pH mosaic |
title_full |
Transcriptomic responses to seawater acidification among sea urchin populations inhabiting a natural pH mosaic |
title_fullStr |
Transcriptomic responses to seawater acidification among sea urchin populations inhabiting a natural pH mosaic |
title_full_unstemmed |
Transcriptomic responses to seawater acidification among sea urchin populations inhabiting a natural pH mosaic |
title_sort |
transcriptomic responses to seawater acidification among sea urchin populations inhabiting a natural ph mosaic |
publisher |
Wiley |
publishDate |
2017 |
url |
http://dx.doi.org/10.1111/mec.14038 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fmec.14038 https://onlinelibrary.wiley.com/doi/pdf/10.1111/mec.14038 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/mec.14038 https://onlinelibrary.wiley.com/doi/am-pdf/10.1111/mec.14038 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Molecular Ecology volume 26, issue 8, page 2257-2275 ISSN 0962-1083 1365-294X |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#am http://onlinelibrary.wiley.com/termsAndConditions#vor http://doi.wiley.com/10.1002/tdm_license_1 http://onlinelibrary.wiley.com/termsAndConditions http://onlinelibrary.wiley.com/termsAndConditions |
op_doi |
https://doi.org/10.1111/mec.14038 |
container_title |
Molecular Ecology |
container_volume |
26 |
container_issue |
8 |
container_start_page |
2257 |
op_container_end_page |
2275 |
_version_ |
1813451245243858944 |