Evidence of adaptation, niche separation and microevolution within the genus Polaromonas on Arctic and Antarctic glacial surfaces
Polaromonas is one of the most abundant genera found on glacier surfaces, yet its ecology remains poorly described. Investigations made to date point towards a uniform distribution of Polaromonas phylotypes across the globe. We compared 43 Polaromonas isolates obtained from surfaces of Arctic and An...
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ftpubmed:oai:pubmedcentral.nih.gov:4921121 2023-05-15T13:51:10+02:00 Evidence of adaptation, niche separation and microevolution within the genus Polaromonas on Arctic and Antarctic glacial surfaces Gawor, Jan Grzesiak, Jakub Sasin-Kurowska, Joanna Borsuk, Piotr Gromadka, Robert Górniak, Dorota Świątecki, Aleksander Aleksandrzak-Piekarczyk, Tamara Zdanowski, Marek K. 2016-04-20 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4921121/ http://www.ncbi.nlm.nih.gov/pubmed/27097637 https://doi.org/10.1007/s00792-016-0831-0 en eng Springer Japan http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4921121/ http://www.ncbi.nlm.nih.gov/pubmed/27097637 http://dx.doi.org/10.1007/s00792-016-0831-0 © The Author(s) 2016 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. CC-BY Original Paper Text 2016 ftpubmed https://doi.org/10.1007/s00792-016-0831-0 2016-07-17T00:04:48Z Polaromonas is one of the most abundant genera found on glacier surfaces, yet its ecology remains poorly described. Investigations made to date point towards a uniform distribution of Polaromonas phylotypes across the globe. We compared 43 Polaromonas isolates obtained from surfaces of Arctic and Antarctic glaciers to address this issue. 16S rRNA gene sequences, intergenic transcribed spacers (ITS) and metabolic fingerprinting showed great differences between hemispheres but also between neighboring glaciers. Phylogenetic distance between Arctic and Antarctic isolates indicated separate species. The Arctic group clustered similarly, when constructing dendrograms based on 16S rRNA gene and ITS sequences, as well as metabolic traits. The Antarctic strains, although almost identical considering 16S rRNA genes, diverged into 2 groups based on the ITS sequences and metabolic traits, suggesting recent niche separation. Certain phenotypic traits pointed towards cell adaptation to specific conditions on a particular glacier, like varying pH levels. Collected data suggest, that seeding of glacial surfaces with Polaromonas cells transported by various means, is of greater efficiency on local than global scales. Selection mechanisms present of glacial surfaces reduce the deposited Polaromonas diversity, causing subsequent adaptation to prevailing environmental conditions. Furthermore, interactions with other supraglacial microbiota, like algae cells may drive postselectional niche separation and microevolution within the Polaromonas genus. Text Antarc* Antarctic Arctic PubMed Central (PMC) Antarctic Arctic The Antarctic Extremophiles 20 4 403 413 |
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Original Paper |
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Original Paper Gawor, Jan Grzesiak, Jakub Sasin-Kurowska, Joanna Borsuk, Piotr Gromadka, Robert Górniak, Dorota Świątecki, Aleksander Aleksandrzak-Piekarczyk, Tamara Zdanowski, Marek K. Evidence of adaptation, niche separation and microevolution within the genus Polaromonas on Arctic and Antarctic glacial surfaces |
topic_facet |
Original Paper |
description |
Polaromonas is one of the most abundant genera found on glacier surfaces, yet its ecology remains poorly described. Investigations made to date point towards a uniform distribution of Polaromonas phylotypes across the globe. We compared 43 Polaromonas isolates obtained from surfaces of Arctic and Antarctic glaciers to address this issue. 16S rRNA gene sequences, intergenic transcribed spacers (ITS) and metabolic fingerprinting showed great differences between hemispheres but also between neighboring glaciers. Phylogenetic distance between Arctic and Antarctic isolates indicated separate species. The Arctic group clustered similarly, when constructing dendrograms based on 16S rRNA gene and ITS sequences, as well as metabolic traits. The Antarctic strains, although almost identical considering 16S rRNA genes, diverged into 2 groups based on the ITS sequences and metabolic traits, suggesting recent niche separation. Certain phenotypic traits pointed towards cell adaptation to specific conditions on a particular glacier, like varying pH levels. Collected data suggest, that seeding of glacial surfaces with Polaromonas cells transported by various means, is of greater efficiency on local than global scales. Selection mechanisms present of glacial surfaces reduce the deposited Polaromonas diversity, causing subsequent adaptation to prevailing environmental conditions. Furthermore, interactions with other supraglacial microbiota, like algae cells may drive postselectional niche separation and microevolution within the Polaromonas genus. |
format |
Text |
author |
Gawor, Jan Grzesiak, Jakub Sasin-Kurowska, Joanna Borsuk, Piotr Gromadka, Robert Górniak, Dorota Świątecki, Aleksander Aleksandrzak-Piekarczyk, Tamara Zdanowski, Marek K. |
author_facet |
Gawor, Jan Grzesiak, Jakub Sasin-Kurowska, Joanna Borsuk, Piotr Gromadka, Robert Górniak, Dorota Świątecki, Aleksander Aleksandrzak-Piekarczyk, Tamara Zdanowski, Marek K. |
author_sort |
Gawor, Jan |
title |
Evidence of adaptation, niche separation and microevolution within the genus Polaromonas on Arctic and Antarctic glacial surfaces |
title_short |
Evidence of adaptation, niche separation and microevolution within the genus Polaromonas on Arctic and Antarctic glacial surfaces |
title_full |
Evidence of adaptation, niche separation and microevolution within the genus Polaromonas on Arctic and Antarctic glacial surfaces |
title_fullStr |
Evidence of adaptation, niche separation and microevolution within the genus Polaromonas on Arctic and Antarctic glacial surfaces |
title_full_unstemmed |
Evidence of adaptation, niche separation and microevolution within the genus Polaromonas on Arctic and Antarctic glacial surfaces |
title_sort |
evidence of adaptation, niche separation and microevolution within the genus polaromonas on arctic and antarctic glacial surfaces |
publisher |
Springer Japan |
publishDate |
2016 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4921121/ http://www.ncbi.nlm.nih.gov/pubmed/27097637 https://doi.org/10.1007/s00792-016-0831-0 |
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Antarctic Arctic The Antarctic |
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Antarctic Arctic The Antarctic |
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Antarc* Antarctic Arctic |
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Antarc* Antarctic Arctic |
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4921121/ http://www.ncbi.nlm.nih.gov/pubmed/27097637 http://dx.doi.org/10.1007/s00792-016-0831-0 |
op_rights |
© The Author(s) 2016 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. |
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CC-BY |
op_doi |
https://doi.org/10.1007/s00792-016-0831-0 |
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