Increasing temperature-driven changes in life history traits and gene expression of an Antarctic tardigrade species
The Antarctic region has been experiencing some of the planet's strongest climatic changes, including an expected increase of the land temperature. The potential effects of this warming trend will lead ecosystems to a risk of losing biodiversity. Antarctic mosses and lichens host different micr...
Published in: | Frontiers in Physiology |
---|---|
Main Authors: | , , , , , , , |
Other Authors: | , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2023
|
Subjects: | |
Online Access: | https://hdl.handle.net/11380/1326627 https://doi.org/10.3389/fphys.2023.1258932 |
id |
ftunivmodena:oai:iris.unimore.it:11380/1326627 |
---|---|
record_format |
openpolar |
spelling |
ftunivmodena:oai:iris.unimore.it:11380/1326627 2024-04-14T08:00:13+00:00 Increasing temperature-driven changes in life history traits and gene expression of an Antarctic tardigrade species Giovannini I. Manfrin C. Greco S. Vincenzi J. Altiero T. Guidetti R. Giulianini P. Rebecchi L. Giovannini, I. Manfrin, C. Greco, S. Vincenzi, J. Altiero, T. Guidetti, R. Giulianini, P. Rebecchi, L. 2023 https://hdl.handle.net/11380/1326627 https://doi.org/10.3389/fphys.2023.1258932 eng eng info:eu-repo/semantics/altIdentifier/pmid/37766751 info:eu-repo/semantics/altIdentifier/wos/WOS:001071822000001 volume:14 firstpage:1 lastpage:12 journal:FRONTIERS IN PHYSIOLOGY https://hdl.handle.net/11380/1326627 doi:10.3389/fphys.2023.1258932 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85172389729 info:eu-repo/semantics/openAccess Antarctica DEGs (differentially expressed genes) TDPs (tardigrade disordered proteins) fitne global warming life cycle thermal stre transcriptome info:eu-repo/semantics/article 2023 ftunivmodena https://doi.org/10.3389/fphys.2023.1258932 2024-03-21T17:33:53Z The Antarctic region has been experiencing some of the planet's strongest climatic changes, including an expected increase of the land temperature. The potential effects of this warming trend will lead ecosystems to a risk of losing biodiversity. Antarctic mosses and lichens host different microbial groups, micro-arthropods and meiofaunal organisms (e.g., tardigrades, rotifers). The eutardigrade Acutuncus antarcticus is considered a model animal to study the effect of increasing temperature due to global warming on Antarctic terrestrial communities. In this study, life history traits and fitness of this species are analyzed by rearing specimens at two different and increasing temperatures (5 & DEG;C vs. 15 & DEG;C). Moreover, the first transcriptome analysis on A. antarcticus is performed, exposing adult animals to a gradual increase of temperature (5 & DEG;C, 10 & DEG;C, 15 & DEG;C, and 20 & DEG;C) to find differentially expressed genes under short- (1 day) and long-term (15 days) heat stress. Acutuncus antarcticus specimens reared at 5 & DEG;C live longer (maximum life span: 686 days), reach sexual maturity later, lay more eggs (which hatch in longer time and in lower percentage) compared with animals reared at 15 & DEG;C. The fitness decreases in animals belonging to the second generation at both rearing temperatures. The short-term heat exposure leads to significant changes at transcriptomic level, with 67 differentially expressed genes. Of these, 23 upregulated genes suggest alterations of mitochondrial activity and oxido-reductive processes, and two intrinsically disordered protein genes confirm their role to cope with heat stress. The long-term exposure induces alterations limited to 14 genes, and only one annotated gene is upregulated in response to both heat stresses. The decline in transcriptomic response after a long-term exposure indicates that the changes observed in the short-term are likely due to an acclimation response. Therefore, A. antarcticus could be able to ... Article in Journal/Newspaper Acutuncus antarcticus Antarc* Antarctic Antarctica antarcticus Tardigrade Archivio della ricerca dell'Università di Modena e Reggio Emilia (Unimore: IRIS) Antarctic The Antarctic Frontiers in Physiology 14 |
institution |
Open Polar |
collection |
Archivio della ricerca dell'Università di Modena e Reggio Emilia (Unimore: IRIS) |
op_collection_id |
ftunivmodena |
language |
English |
topic |
Antarctica DEGs (differentially expressed genes) TDPs (tardigrade disordered proteins) fitne global warming life cycle thermal stre transcriptome |
spellingShingle |
Antarctica DEGs (differentially expressed genes) TDPs (tardigrade disordered proteins) fitne global warming life cycle thermal stre transcriptome Giovannini I. Manfrin C. Greco S. Vincenzi J. Altiero T. Guidetti R. Giulianini P. Rebecchi L. Increasing temperature-driven changes in life history traits and gene expression of an Antarctic tardigrade species |
topic_facet |
Antarctica DEGs (differentially expressed genes) TDPs (tardigrade disordered proteins) fitne global warming life cycle thermal stre transcriptome |
description |
The Antarctic region has been experiencing some of the planet's strongest climatic changes, including an expected increase of the land temperature. The potential effects of this warming trend will lead ecosystems to a risk of losing biodiversity. Antarctic mosses and lichens host different microbial groups, micro-arthropods and meiofaunal organisms (e.g., tardigrades, rotifers). The eutardigrade Acutuncus antarcticus is considered a model animal to study the effect of increasing temperature due to global warming on Antarctic terrestrial communities. In this study, life history traits and fitness of this species are analyzed by rearing specimens at two different and increasing temperatures (5 & DEG;C vs. 15 & DEG;C). Moreover, the first transcriptome analysis on A. antarcticus is performed, exposing adult animals to a gradual increase of temperature (5 & DEG;C, 10 & DEG;C, 15 & DEG;C, and 20 & DEG;C) to find differentially expressed genes under short- (1 day) and long-term (15 days) heat stress. Acutuncus antarcticus specimens reared at 5 & DEG;C live longer (maximum life span: 686 days), reach sexual maturity later, lay more eggs (which hatch in longer time and in lower percentage) compared with animals reared at 15 & DEG;C. The fitness decreases in animals belonging to the second generation at both rearing temperatures. The short-term heat exposure leads to significant changes at transcriptomic level, with 67 differentially expressed genes. Of these, 23 upregulated genes suggest alterations of mitochondrial activity and oxido-reductive processes, and two intrinsically disordered protein genes confirm their role to cope with heat stress. The long-term exposure induces alterations limited to 14 genes, and only one annotated gene is upregulated in response to both heat stresses. The decline in transcriptomic response after a long-term exposure indicates that the changes observed in the short-term are likely due to an acclimation response. Therefore, A. antarcticus could be able to ... |
author2 |
Giovannini, I. Manfrin, C. Greco, S. Vincenzi, J. Altiero, T. Guidetti, R. Giulianini, P. Rebecchi, L. |
format |
Article in Journal/Newspaper |
author |
Giovannini I. Manfrin C. Greco S. Vincenzi J. Altiero T. Guidetti R. Giulianini P. Rebecchi L. |
author_facet |
Giovannini I. Manfrin C. Greco S. Vincenzi J. Altiero T. Guidetti R. Giulianini P. Rebecchi L. |
author_sort |
Giovannini I. |
title |
Increasing temperature-driven changes in life history traits and gene expression of an Antarctic tardigrade species |
title_short |
Increasing temperature-driven changes in life history traits and gene expression of an Antarctic tardigrade species |
title_full |
Increasing temperature-driven changes in life history traits and gene expression of an Antarctic tardigrade species |
title_fullStr |
Increasing temperature-driven changes in life history traits and gene expression of an Antarctic tardigrade species |
title_full_unstemmed |
Increasing temperature-driven changes in life history traits and gene expression of an Antarctic tardigrade species |
title_sort |
increasing temperature-driven changes in life history traits and gene expression of an antarctic tardigrade species |
publishDate |
2023 |
url |
https://hdl.handle.net/11380/1326627 https://doi.org/10.3389/fphys.2023.1258932 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Acutuncus antarcticus Antarc* Antarctic Antarctica antarcticus Tardigrade |
genre_facet |
Acutuncus antarcticus Antarc* Antarctic Antarctica antarcticus Tardigrade |
op_relation |
info:eu-repo/semantics/altIdentifier/pmid/37766751 info:eu-repo/semantics/altIdentifier/wos/WOS:001071822000001 volume:14 firstpage:1 lastpage:12 journal:FRONTIERS IN PHYSIOLOGY https://hdl.handle.net/11380/1326627 doi:10.3389/fphys.2023.1258932 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85172389729 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.3389/fphys.2023.1258932 |
container_title |
Frontiers in Physiology |
container_volume |
14 |
_version_ |
1796317129203515392 |