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            <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/dataset/756997.rdf" xlink:actuate="onRequest">Microbial community composition from 16s V4 region amplicon sequencing of the methane Seep at the Cinder Cones Cold Seep site, Nov 2016</gmx:Anchor>
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                        <gco:Date>2019-03-20</gco:Date>
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                <gmx:Anchor xlink:href="https://ror.org/00ysfqy60" xlink:title="ROR ID" xlink:actuate="onRequest">Oregon State University</gmx:Anchor>
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            <gco:CharacterString>Cite this dataset as: Thurber, A. (2019) Microbial community composition from 16s V4 region amplicon sequencing of the methane Seep at the Cinder Cones Cold Seep site, Nov 2016. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2019-02-25 [if applicable, indicate subset used]. doi:10.1575/1912/bco-dmo.756997.1 [access date]</gco:CharacterString>
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        <gco:CharacterString>Microbial community composition of the Cinder Cones Cold Seep Dataset Description: &amp;lt;p&amp;gt;This dataset includes details on 151 marine sediment community samples collected from the Cinder Cones Cold Seep site [-77.8, 166.666] in the Ross Sea region, Antarctica in November 2016. Data are uploaded to the NCBI Sequence Read Archive under submission SUB2655615 [&amp;lt;a href=&amp;quot;https://www.ncbi.nlm.nih.gov/bioproject/PRJNA387720&amp;quot; target=&amp;quot;_blank&amp;quot;&amp;gt;https://www.ncbi.nlm.nih.gov/bioproject/PRJNA387720&amp;lt;/a&amp;gt;] with a subset of the data from that archive originating from this project.&amp;lt;/p&amp;gt; Methods and Sampling: &amp;lt;p&amp;gt;Sediment cores were collected from the Cinder Cones site including a methane seep habitat and vertically sectioned into cm intervals with the exterior of the cores discarded to avoid vertical smearing.&amp;amp;nbsp; Sediments&amp;amp;nbsp;were placed in whirlpack bags and kept at -80 until DNA was extracted.&amp;lt;/p&amp;gt;

&amp;lt;p&amp;gt;Between 0.25 and 0.5 grams of frozen sediment had DNA extracted using the MoBio (now Qiagen) PowerSoil kits. Primers and amplification procedures follow the Earth Microbiome Project Protocol (http://www.earthmicrobiome.org/protocols-and-standards/16s/) using the updated primers in Apprill et al (2015) following Caporaso et al. (2011).&amp;amp;nbsp; In short, triplicate PCRs were run using the 515FB and the 806RB primers that copy the V4 region if the 16s rRNA gene. These primers were barcoded allowing later in silico separation of pooled samples.&amp;amp;nbsp; Controls and all samples were run on a gel to check for contamination.&amp;amp;nbsp; DNA was cleaned up using the MoBio UltraClean PCR Clean-Up Kit, samples were pooled into equal molar concentrations and submitted for sequencing.&amp;lt;/p&amp;gt;

&amp;lt;p&amp;gt;Data were de-multiplexed and primers trimmed. No other data manipulation has been performed.&amp;lt;/p&amp;gt;</gco:CharacterString>
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        <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/award/709614.rdf" xlink:title="OPP-1642570" xlink:actuate="onRequest">Funding provided by NSF Office of Polar Programs (formerly NSF PLR) (NSF OPP) Award Number: OPP-1642570 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1642570</gmx:Anchor>
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