Microbial DNA records historical delivery of anthropogenic mercury
Mercury (Hg) is an anthropogenic pollutant that is toxic to wildlife and humans, but the response of remote ecosystems to globally distributed Hg is elusive. Here, we use DNA extracted from a dated sediment core to infer the response of microbes to historical Hg delivery. We observe a significant as...
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| Veröffentlicht in: | The ISME Journal 2015-12, Vol.9 (12), p.2541-2550 |
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| creator | Poulain, Alexandre J Aris-Brosou, Stéphane Blais, Jules M Brazeau, Michelle Keller, Wendel (Bill) Paterson, Andrew M |
| description | Mercury (Hg) is an anthropogenic pollutant that is toxic to wildlife and humans, but the response of remote ecosystems to globally distributed Hg is elusive. Here, we use DNA extracted from a dated sediment core to infer the response of microbes to historical Hg delivery. We observe a significant association between the mercuric reductase gene (
merA
) phylogeny and the timing of Hg deposition. Using relaxed molecular clock models, we show a significant increase in the scaled effective population size of the
merA
gene beginning ~200 years ago, coinciding with the Industrial Revolution and a coincident strong signal for positive selection acting on residues in the terminal region of the mercuric reductase. This rapid evolutionary response of microbes to changes in the delivery of anthropogenic Hg indicates that microbial genomes record ecosystem response to pollutant deposition in remote regions. |
| doi_str_mv | 10.1038/ismej.2015.86 |
| format | Article |
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merA
) phylogeny and the timing of Hg deposition. Using relaxed molecular clock models, we show a significant increase in the scaled effective population size of the
merA
gene beginning ~200 years ago, coinciding with the Industrial Revolution and a coincident strong signal for positive selection acting on residues in the terminal region of the mercuric reductase. This rapid evolutionary response of microbes to changes in the delivery of anthropogenic Hg indicates that microbial genomes record ecosystem response to pollutant deposition in remote regions.</description><identifier>ISSN: 1751-7362</identifier><identifier>EISSN: 1751-7370</identifier><identifier>DOI: 10.1038/ismej.2015.86</identifier><identifier>PMID: 26057844</identifier><language>eng</language><publisher>London: Nature Publishing Group UK</publisher><subject>631/326/171/1878 ; 704/172/169/896 ; Amino Acid Sequence ; Anthropogenic factors ; Bacteria - classification ; Bacteria - genetics ; Bacteria - isolation & purification ; Bacteria - metabolism ; Bacterial Proteins - genetics ; Bacterial Proteins - metabolism ; Biomedical and Life Sciences ; Deoxyribonucleic acid ; DNA ; DNA, Bacterial - genetics ; Ecology ; Ecosystem ; Environmental Pollutants - analysis ; Environmental Pollutants - metabolism ; Environmental Pollution - history ; Evolutionary Biology ; Geologic Sediments - chemistry ; Geologic Sediments - microbiology ; History, 19th Century ; History, 20th Century ; Humans ; Life Sciences ; Mercury ; Mercury - analysis ; Mercury - metabolism ; Microbial Ecology ; Microbial Genetics and Genomics ; Microbiology ; Molecular Sequence Data ; Original ; original-article ; Oxidoreductases - genetics ; Oxidoreductases - metabolism ; Phylogeny ; Pollutant deposition ; Population number ; Sequence Alignment ; Wildlife</subject><ispartof>The ISME Journal, 2015-12, Vol.9 (12), p.2541-2550</ispartof><rights>The Author(s) 2015</rights><rights>Copyright Nature Publishing Group Dec 2015</rights><rights>Copyright © 2015 International Society for Microbial Ecology 2015 International Society for Microbial Ecology</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c553t-73fa3b619526f51570e46e3a40ff64bdb8c79fc2d98d7844d529833fd52e17383</citedby><cites>FETCH-LOGICAL-c553t-73fa3b619526f51570e46e3a40ff64bdb8c79fc2d98d7844d529833fd52e17383</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC4817628/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC4817628/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,727,780,784,885,27924,27925,53791,53793</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/26057844$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Poulain, Alexandre J</creatorcontrib><creatorcontrib>Aris-Brosou, Stéphane</creatorcontrib><creatorcontrib>Blais, Jules M</creatorcontrib><creatorcontrib>Brazeau, Michelle</creatorcontrib><creatorcontrib>Keller, Wendel (Bill)</creatorcontrib><creatorcontrib>Paterson, Andrew M</creatorcontrib><title>Microbial DNA records historical delivery of anthropogenic mercury</title><title>The ISME Journal</title><addtitle>ISME J</addtitle><addtitle>ISME J</addtitle><description>Mercury (Hg) is an anthropogenic pollutant that is toxic to wildlife and humans, but the response of remote ecosystems to globally distributed Hg is elusive. Here, we use DNA extracted from a dated sediment core to infer the response of microbes to historical Hg delivery. We observe a significant association between the mercuric reductase gene (
merA
) phylogeny and the timing of Hg deposition. Using relaxed molecular clock models, we show a significant increase in the scaled effective population size of the
merA
gene beginning ~200 years ago, coinciding with the Industrial Revolution and a coincident strong signal for positive selection acting on residues in the terminal region of the mercuric reductase. This rapid evolutionary response of microbes to changes in the delivery of anthropogenic Hg indicates that microbial genomes record ecosystem response to pollutant deposition in remote regions.</description><subject>631/326/171/1878</subject><subject>704/172/169/896</subject><subject>Amino Acid Sequence</subject><subject>Anthropogenic factors</subject><subject>Bacteria - classification</subject><subject>Bacteria - genetics</subject><subject>Bacteria - isolation & purification</subject><subject>Bacteria - metabolism</subject><subject>Bacterial Proteins - genetics</subject><subject>Bacterial Proteins - metabolism</subject><subject>Biomedical and Life Sciences</subject><subject>Deoxyribonucleic acid</subject><subject>DNA</subject><subject>DNA, Bacterial - genetics</subject><subject>Ecology</subject><subject>Ecosystem</subject><subject>Environmental Pollutants - analysis</subject><subject>Environmental Pollutants - metabolism</subject><subject>Environmental Pollution - history</subject><subject>Evolutionary Biology</subject><subject>Geologic Sediments - chemistry</subject><subject>Geologic Sediments - microbiology</subject><subject>History, 19th Century</subject><subject>History, 20th Century</subject><subject>Humans</subject><subject>Life Sciences</subject><subject>Mercury</subject><subject>Mercury - analysis</subject><subject>Mercury - metabolism</subject><subject>Microbial Ecology</subject><subject>Microbial Genetics and Genomics</subject><subject>Microbiology</subject><subject>Molecular Sequence Data</subject><subject>Original</subject><subject>original-article</subject><subject>Oxidoreductases - genetics</subject><subject>Oxidoreductases - metabolism</subject><subject>Phylogeny</subject><subject>Pollutant deposition</subject><subject>Population number</subject><subject>Sequence Alignment</subject><subject>Wildlife</subject><issn>1751-7362</issn><issn>1751-7370</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><sourceid>C6C</sourceid><sourceid>EIF</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNptkb1v2zAQxYmgQe2kHbMWArp0sUOK4oeWAG6-GsBJl3YmKOpo05BEh5QC-L8vFSdGGmS6A--Hx3f3EDojeE4wlecutrCZ55iwueRHaEoEIzNBBf506Hk-QScxbjBmgnPxGU1ynlpZFFP0896Z4Cunm-zqYZEFMD7UMVu72PvgTHquoXFPEHaZt5nu-nXwW7-CzpmshWCGsPuCjq1uInx9qafo7831n8tfs-Xv27vLxXJmGKN98mE1rTgpWc4tI0xgKDhQXWBreVHVlTSitCavS1mP3mqWl5JSmyoQQSU9RRd73e1QtVAb6PqgG7UNrtVhp7x26v9J59Zq5Z9UIYng-Sjw40Ug-McBYq9aFw00je7AD1ElipWspGxEv79DN34IXVovUZRywpNoomZ7Kp0wxgD2YIZgNaajntNRYzpK8sR_e7vBgX6NIwHzPRDTqFtBePPth4r_ADQ7m34</recordid><startdate>20151201</startdate><enddate>20151201</enddate><creator>Poulain, Alexandre J</creator><creator>Aris-Brosou, Stéphane</creator><creator>Blais, Jules M</creator><creator>Brazeau, Michelle</creator><creator>Keller, Wendel (Bill)</creator><creator>Paterson, Andrew M</creator><general>Nature Publishing Group UK</general><general>Nature Publishing Group</general><scope>C6C</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7QL</scope><scope>7SN</scope><scope>7ST</scope><scope>7T7</scope><scope>7TM</scope><scope>7X7</scope><scope>7XB</scope><scope>88E</scope><scope>8FD</scope><scope>8FE</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>ATCPS</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BHPHI</scope><scope>C1K</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FR3</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>LK8</scope><scope>M0S</scope><scope>M1P</scope><scope>M7N</scope><scope>M7P</scope><scope>P64</scope><scope>PATMY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PYCSY</scope><scope>SOI</scope><scope>7TV</scope><scope>5PM</scope></search><sort><creationdate>20151201</creationdate><title>Microbial DNA records historical delivery of anthropogenic mercury</title><author>Poulain, Alexandre J ; Aris-Brosou, Stéphane ; Blais, Jules M ; Brazeau, Michelle ; Keller, Wendel (Bill) ; Paterson, Andrew M</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c553t-73fa3b619526f51570e46e3a40ff64bdb8c79fc2d98d7844d529833fd52e17383</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>631/326/171/1878</topic><topic>704/172/169/896</topic><topic>Amino Acid Sequence</topic><topic>Anthropogenic factors</topic><topic>Bacteria - 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Here, we use DNA extracted from a dated sediment core to infer the response of microbes to historical Hg delivery. We observe a significant association between the mercuric reductase gene (
merA
) phylogeny and the timing of Hg deposition. Using relaxed molecular clock models, we show a significant increase in the scaled effective population size of the
merA
gene beginning ~200 years ago, coinciding with the Industrial Revolution and a coincident strong signal for positive selection acting on residues in the terminal region of the mercuric reductase. This rapid evolutionary response of microbes to changes in the delivery of anthropogenic Hg indicates that microbial genomes record ecosystem response to pollutant deposition in remote regions.</abstract><cop>London</cop><pub>Nature Publishing Group UK</pub><pmid>26057844</pmid><doi>10.1038/ismej.2015.86</doi><tpages>10</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | 631/326/171/1878 704/172/169/896 Amino Acid Sequence Anthropogenic factors Bacteria - classification Bacteria - genetics Bacteria - isolation & purification Bacteria - metabolism Bacterial Proteins - genetics Bacterial Proteins - metabolism Biomedical and Life Sciences Deoxyribonucleic acid DNA DNA, Bacterial - genetics Ecology Ecosystem Environmental Pollutants - analysis Environmental Pollutants - metabolism Environmental Pollution - history Evolutionary Biology Geologic Sediments - chemistry Geologic Sediments - microbiology History, 19th Century History, 20th Century Humans Life Sciences Mercury Mercury - analysis Mercury - metabolism Microbial Ecology Microbial Genetics and Genomics Microbiology Molecular Sequence Data Original original-article Oxidoreductases - genetics Oxidoreductases - metabolism Phylogeny Pollutant deposition Population number Sequence Alignment Wildlife |
| title | Microbial DNA records historical delivery of anthropogenic mercury |
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