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            <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/dataset/897962.rdf" xlink:actuate="onRequest">Lost City hydrothermal fluids sequence data from R/V Atlantis AT42-01 in the Lost City hydrothermal field from September to October 2018 (Lost City Limits to Life project)</gmx:Anchor>
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            <gco:CharacterString>Cite this dataset as: Brazelton, W. (2023) Lost City hydrothermal fluids sequence data from R/V Atlantis AT42-01 in the Lost City hydrothermal field from September to October 2018 (Lost City Limits to Life project). Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2023-06-27 [if applicable, indicate subset used]. http://lod.bco-dmo.org/id/dataset/897962 [access date]</gco:CharacterString>
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        <gco:CharacterString>Lost City hydrothermal fluids sequence data Dataset Description: &amp;lt;p&amp;gt;Amplicon sequences related to this dataset are available via NCBI BioProject&amp;amp;nbsp;PRJNA672129, and metagenome and metatranscriptome sequences are available via BioProject&amp;amp;nbsp;PRJNA779602. MAGs are associated with the same BioProject and are individually accessible via BioSamples&amp;amp;nbsp;SAMN23474158&amp;amp;nbsp;-&amp;amp;nbsp;SAMN23474187. In addition, GenBank accessions are listed for each MAG in Table S4. Protocols, metadata, and additional data are provided in a Zenodo-archived GitHub repository, &amp;lt;em&amp;gt;Brazelton-Lab/Brazelton-2022-Lost-City-fluids-MAGs: Final, published versions of text included&amp;lt;/em&amp;gt;. Citations and links to these resources can be found within the Related Datasets section of this metadata page.&amp;lt;/p&amp;gt; Methods and Sampling: &amp;lt;p&amp;gt;&amp;lt;strong&amp;gt;Methods and Sampling&amp;amp;nbsp;&amp;lt;/strong&amp;gt;&amp;lt;/p&amp;gt;

&amp;lt;p&amp;gt;On the seafloor, venting fluids were slowly pumped through 0.2 μm Millipore Sterivex cartridge filters or into acid-washed Kynar bags with the HOG sampler. Samples intended for RNA extractions were collected into 2 L Kynar bags containing 67 mL of a stop solution (97.5% 200 proof ethanol, 2.5% Trizol LS). Fluid temperatures were monitored in real-time during sampling with a probe embedded into the sampler intake. Immediately upon shipboard recovery of ROV Jason, all Sterivex filters were stored at -80 ºC.&amp;lt;/p&amp;gt;

&amp;lt;p&amp;gt;Extraction of DNA from all Sterivex filters (including in situ-filtered fluids and fluids collected in Kynar bags and filtered shipboard) was conducted as described in the full protocol available via the Zenodo-archived GitHub repository (DOI: 10.5281/zenodo.5798015) and on protocols.io (DOI: dx.doi.org/10.17504/protocols.io.bykqpuvw). Total RNA was extracted from the Sterivex filters with a modification of the DNA extraction protocol optimized for RNA. The full protocol is available in the Zenodo-archived GitHub repository (DOI: 10.5281/zenodo.5798015) and on protocols.io (DOI: dx.doi.org/10.17504/protocols.io.bykspuwe). First-strand synthesis of cDNA was performed with SuperScript IV Reverse Transcriptase and random hexamers (Thermo Fisher).&amp;lt;/p&amp;gt;

&amp;lt;p&amp;gt;&amp;lt;br /&amp;gt;
Sequencing of amplicons generated from 16S rRNA genes and cDNA was performed at the Genomics Core Facility at Michigan State University on an Illumina MiSeq instrument using dual-indexed Illumina fusion primers targeting the V4 region of the 16S rRNA gene. Metagenome libraries were constructed with size-selected, sonicated DNA fragments of 500-700 bp with the NEBnext Ultra DNA II library kit for Illumina (E7645S). Paired-end sequencing (2 x 125 bp) of metagenomic libraries was conducted at the University of Utah High-Throughput Genomics Core Facility at the Huntsman Cancer Institute with an Illumina HiSeq2500 platform. The two metatranscriptome libraries were constructed and sequenced by the University of Utah High-Throughput Genomics Core Facility at the Huntsman Cancer Institute. Total RNA was hybridized with NEBNext rRNA Depletion Solution Bacteria (E7850L) to substantially diminish rRNA from the samples. Stranded RNA sequencing libraries were prepared using the NEBNext Ultra II RNA Library Prep Kit for Illumina (E7770L). Following the transfer of the flowcell to an Illumina NovaSeq 6000 instrument, a 150 cycle paired-end sequence run was performed using a NovaSeq 6000 S4 reagent Kit v1.5 (20028312).&amp;lt;/p&amp;gt;

&amp;lt;p&amp;gt;&amp;amp;nbsp;&amp;lt;/p&amp;gt;

&amp;lt;p&amp;gt;&amp;amp;nbsp;&amp;lt;/p&amp;gt;

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        <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/award/658603.rdf" xlink:title="OCE-1536702" xlink:actuate="onRequest">Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1536702 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1536702</gmx:Anchor>
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        <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/award/658624.rdf" xlink:title="OCE-1536405" xlink:actuate="onRequest">Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1536405 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1536405</gmx:Anchor>
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	Units: unitless
	Description: &lt;p&gt;Status of the SRA record at the time of submission (e.g., new).&lt;/p&gt; 
http://lod.bco-dmo.org/id/dataset-parameter/991565.rdf
	Name: bioproject_accession
	Units: unitless
	Description: &lt;p&gt;NCBI BioProject accession identifying the overarching project to which the sequencing data belong.&lt;/p&gt; 
http://lod.bco-dmo.org/id/dataset-parameter/991566.rdf
	Name: biosample_accession
	Units: unitless
	Description: &lt;p&gt;NCBI BioSample accession identifying the biological sample from which sequence data were generated.&lt;/p&gt; 
http://lod.bco-dmo.org/id/dataset-parameter/991567.rdf
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	Units: unitless
	Description: &lt;p&gt;Descriptive name of the environmental or biological sample.&lt;/p&gt; 
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	Units: unitless
	Description: &lt;p&gt;Unique identifier assigned to the sequencing library prepared from the sample.&lt;/p&gt; 
http://lod.bco-dmo.org/id/dataset-parameter/991569.rdf
	Name: title
	Units: unitless
	Description: &lt;p&gt;Short title or label for the sequencing library, typically matching the library identifier.&lt;/p&gt; 
http://lod.bco-dmo.org/id/dataset-parameter/991570.rdf
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http://lod.bco-dmo.org/id/dataset-parameter/991571.rdf
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	Description: &lt;p&gt;Source material used for library preparation (METAGENOMIC indicates the mixed material from metagenome; METATRANSCRIPTOMIC incidates transcription products from community targets).&lt;/p&gt; 
http://lod.bco-dmo.org/id/dataset-parameter/991572.rdf
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	Units: unitless
	Description: &lt;p&gt;Method used to enrich or select DNA fragments for sequencing (PCR indicates source material was selected by designed primers; RANDOM indicates random selection by shearing or other method)&lt;/p&gt; 
http://lod.bco-dmo.org/id/dataset-parameter/991573.rdf
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	Units: unitless
	Description: &lt;p&gt;Read configuration of the sequencing library (paired for paired-end sequencing).&lt;/p&gt; 
http://lod.bco-dmo.org/id/dataset-parameter/991574.rdf
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	Units: unitless
	Description: &lt;p&gt;Sequencing platform used to generate the data.&lt;/p&gt; 
http://lod.bco-dmo.org/id/dataset-parameter/991575.rdf
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	Units: unitless
	Description: &lt;p&gt;Specific sequencing instrument model used to generate the data.&lt;/p&gt; 
http://lod.bco-dmo.org/id/dataset-parameter/991576.rdf
	Name: design_description
	Units: unitless
	Description: &lt;p&gt;Description of the sequencing assay design.&lt;/p&gt; 
http://lod.bco-dmo.org/id/dataset-parameter/991577.rdf
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	Description: &lt;p&gt;File format of the raw sequencing data.&lt;/p&gt; 
http://lod.bco-dmo.org/id/dataset-parameter/991578.rdf
	Name: filename
	Units: unitless
	Description: &lt;p&gt;Name of the first sequencing data file associated with the run.&lt;/p&gt; 
http://lod.bco-dmo.org/id/dataset-parameter/991579.rdf
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	Units: unitless
	Description: &lt;p&gt;Name of the second sequencing data file associated with the run.&lt;/p&gt; 
http://lod.bco-dmo.org/id/dataset-parameter/991580.rdf
	Name: filename3
	Units: unitless
	Description: &lt;p&gt;Optional additional file associated with the run.&lt;/p&gt; 
http://lod.bco-dmo.org/id/dataset-parameter/991581.rdf
	Name: filename4
	Units: unitless
	Description: &lt;p&gt;Optional additional file associated with the run.&lt;/p&gt; 
http://lod.bco-dmo.org/id/dataset-parameter/991582.rdf
	Name: assembly
	Units: unitless
	Description: &lt;p&gt;Identifier for an associated genome assembly, if applicable.&lt;/p&gt; 
http://lod.bco-dmo.org/id/dataset-parameter/991583.rdf
	Name: fasta_file
	Units: unitless
	Description: &lt;p&gt;Name of an associated FASTA file contianing assembled or processed sequences, if applicable.&lt;/p&gt; 
http://lod.bco-dmo.org/id/dataset-parameter/991584.rdf
	Name: Comment
	Units: unitless
	Description: &lt;p&gt;Comment added by data manager to differentiate between metagenome and amplicon data.&lt;/p&gt; 
http://lod.bco-dmo.org/id/dataset-parameter/991585.rdf
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&amp;lt;p&amp;gt;On the seafloor, venting fluids were slowly pumped through 0.2 μm Millipore Sterivex cartridge filters or into acid-washed Kynar bags with the HOG sampler. Samples intended for RNA extractions were collected into 2 L Kynar bags containing 67 mL of a stop solution (97.5% 200 proof ethanol, 2.5% Trizol LS). Fluid temperatures were monitored in real-time during sampling with a probe embedded into the sampler intake. Immediately upon shipboard recovery of ROV Jason, all Sterivex filters were stored at -80 ºC.&amp;lt;/p&amp;gt;

&amp;lt;p&amp;gt;Extraction of DNA from all Sterivex filters (including in situ-filtered fluids and fluids collected in Kynar bags and filtered shipboard) was conducted as described in the full protocol available via the Zenodo-archived GitHub repository (DOI: 10.5281/zenodo.5798015) and on protocols.io (DOI: dx.doi.org/10.17504/protocols.io.bykqpuvw). Total RNA was extracted from the Sterivex filters with a modification of the DNA extraction protocol optimized for RNA. The full protocol is available in the Zenodo-archived GitHub repository (DOI: 10.5281/zenodo.5798015) and on protocols.io (DOI: dx.doi.org/10.17504/protocols.io.bykspuwe). First-strand synthesis of cDNA was performed with SuperScript IV Reverse Transcriptase and random hexamers (Thermo Fisher).&amp;lt;/p&amp;gt;

&amp;lt;p&amp;gt;&amp;lt;br /&amp;gt;
Sequencing of amplicons generated from 16S rRNA genes and cDNA was performed at the Genomics Core Facility at Michigan State University on an Illumina MiSeq instrument using dual-indexed Illumina fusion primers targeting the V4 region of the 16S rRNA gene. Metagenome libraries were constructed with size-selected, sonicated DNA fragments of 500-700 bp with the NEBnext Ultra DNA II library kit for Illumina (E7645S). Paired-end sequencing (2 x 125 bp) of metagenomic libraries was conducted at the University of Utah High-Throughput Genomics Core Facility at the Huntsman Cancer Institute with an Illumina HiSeq2500 platform. The two metatranscriptome libraries were constructed and sequenced by the University of Utah High-Throughput Genomics Core Facility at the Huntsman Cancer Institute. Total RNA was hybridized with NEBNext rRNA Depletion Solution Bacteria (E7850L) to substantially diminish rRNA from the samples. Stranded RNA sequencing libraries were prepared using the NEBNext Ultra II RNA Library Prep Kit for Illumina (E7770L). Following the transfer of the flowcell to an Illumina NovaSeq 6000 instrument, a 150 cycle paired-end sequence run was performed using a NovaSeq 6000 S4 reagent Kit v1.5 (20028312).&amp;lt;/p&amp;gt;

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