A limit on the evolutionary rescue of an Antarctic bacterium from rising temperatures
Climate change is gradual, but it can also cause brief extreme heat waves that can exceed the upper thermal limit of any one organism. To study the evolutionary potential of upper thermal tolerance, we evolved the cold-adapted Antarctic bacterium Pseudoalteromonas haloplanktis to survive at 30°C, be...
Published in: | Science Advances |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
American Association for the Advancement of Science (AAAS)
2022
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1126/sciadv.abk3511 https://www.science.org/doi/pdf/10.1126/sciadv.abk3511 |
id |
craaas:10.1126/sciadv.abk3511 |
---|---|
record_format |
openpolar |
spelling |
craaas:10.1126/sciadv.abk3511 2024-10-13T14:03:07+00:00 A limit on the evolutionary rescue of an Antarctic bacterium from rising temperatures Toll-Riera, Macarena Olombrada, Miriam Castro-Giner, Francesc Wagner, Andreas 2022 http://dx.doi.org/10.1126/sciadv.abk3511 https://www.science.org/doi/pdf/10.1126/sciadv.abk3511 en eng American Association for the Advancement of Science (AAAS) Science Advances volume 8, issue 28 ISSN 2375-2548 journal-article 2022 craaas https://doi.org/10.1126/sciadv.abk3511 2024-10-03T04:00:03Z Climate change is gradual, but it can also cause brief extreme heat waves that can exceed the upper thermal limit of any one organism. To study the evolutionary potential of upper thermal tolerance, we evolved the cold-adapted Antarctic bacterium Pseudoalteromonas haloplanktis to survive at 30°C, beyond its ancestral thermal limit. This high-temperature adaptation occurred rapidly and in multiple populations. It involved genomic changes that occurred in a highly parallel fashion and mitigated the effects of protein misfolding. However, it also confronted a physiological limit, because populations failed to grow beyond 30°C. Our experiments aimed to facilitate evolutionary rescue by using a small organism with large populations living at temperatures several degrees below their upper thermal limit. Larger organisms with smaller populations and living at temperatures closer to their upper thermal tolerances are even more likely to go extinct during extreme heat waves. Article in Journal/Newspaper Antarc* Antarctic AAAS Resource Center (American Association for the Advancement of Science) Antarctic Science Advances 8 28 |
institution |
Open Polar |
collection |
AAAS Resource Center (American Association for the Advancement of Science) |
op_collection_id |
craaas |
language |
English |
description |
Climate change is gradual, but it can also cause brief extreme heat waves that can exceed the upper thermal limit of any one organism. To study the evolutionary potential of upper thermal tolerance, we evolved the cold-adapted Antarctic bacterium Pseudoalteromonas haloplanktis to survive at 30°C, beyond its ancestral thermal limit. This high-temperature adaptation occurred rapidly and in multiple populations. It involved genomic changes that occurred in a highly parallel fashion and mitigated the effects of protein misfolding. However, it also confronted a physiological limit, because populations failed to grow beyond 30°C. Our experiments aimed to facilitate evolutionary rescue by using a small organism with large populations living at temperatures several degrees below their upper thermal limit. Larger organisms with smaller populations and living at temperatures closer to their upper thermal tolerances are even more likely to go extinct during extreme heat waves. |
format |
Article in Journal/Newspaper |
author |
Toll-Riera, Macarena Olombrada, Miriam Castro-Giner, Francesc Wagner, Andreas |
spellingShingle |
Toll-Riera, Macarena Olombrada, Miriam Castro-Giner, Francesc Wagner, Andreas A limit on the evolutionary rescue of an Antarctic bacterium from rising temperatures |
author_facet |
Toll-Riera, Macarena Olombrada, Miriam Castro-Giner, Francesc Wagner, Andreas |
author_sort |
Toll-Riera, Macarena |
title |
A limit on the evolutionary rescue of an Antarctic bacterium from rising temperatures |
title_short |
A limit on the evolutionary rescue of an Antarctic bacterium from rising temperatures |
title_full |
A limit on the evolutionary rescue of an Antarctic bacterium from rising temperatures |
title_fullStr |
A limit on the evolutionary rescue of an Antarctic bacterium from rising temperatures |
title_full_unstemmed |
A limit on the evolutionary rescue of an Antarctic bacterium from rising temperatures |
title_sort |
limit on the evolutionary rescue of an antarctic bacterium from rising temperatures |
publisher |
American Association for the Advancement of Science (AAAS) |
publishDate |
2022 |
url |
http://dx.doi.org/10.1126/sciadv.abk3511 https://www.science.org/doi/pdf/10.1126/sciadv.abk3511 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Science Advances volume 8, issue 28 ISSN 2375-2548 |
op_doi |
https://doi.org/10.1126/sciadv.abk3511 |
container_title |
Science Advances |
container_volume |
8 |
container_issue |
28 |
_version_ |
1812819530357932032 |