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Microbial (Bacteria, 16S) Diversity in Antarctic marine sediments (Admiralty Bay and Bransfield Strait)
Franco D, Signori C, Duarte R, Nakayama C, Campos L, Pellizari V (2018): Microbial (Bacteria, 16S) Diversity in Antarctic marine sediments (Admiralty Bay and Bransfield Strait). v1.2. SCAR - Microbial Antarctic Resource System. Dataset/Metadata.
Contact: Franco, Diego

Access data
Archived data
Availability: Creative Commons License This dataset is licensed under a Creative Commons Attribution 4.0 International License.

Amplicon dataset of Bacteria (16S ssh rRNA marker gene) found Antarctic marine sediments (Admiralty Bay and Bransfield Strait), sampled in December 2008. more

In total, 15 samples of marine sediments were collected using a Mini Box Corer (MBC) at different depths. The top 5 cm of sediments were transferred to sterile Whirl-Pack sample bags (Nasco, WI, USA) and stored frozen onboard (-20°C). Samples were shipped to the University of São Paulo (USP) after 4 months of sampling.
Study Extent: Surface sediment samples were collected along a bathymetric gradient in King George Island (stations 1–9, depths ranging from 100 to 502 m) and NBB – Bransfield Strait (stations 10–15, depths 693–1,147 m), located in the Northwestern Antarctic Peninsula. Sampling was conducted by the Brazilian Navy vessel NApOc Ary Rongel during the austral summer, December 2008.
Method step description:
  1. Genomic DNA was extracted from 0.25 g of surface sediment in quadruplicate using a PowerSoil DNA Kit (MoBio, Carlsbad, CA, USA), according to the manufacturer’s instructions. Microbial 16S rRNA gene fragments were amplified using a set of primers designed by adding a 10-nucleotide barcode to the forward primer, 519F, (5′-CAGCMGCCGCGGTAATWC-3′) and reverse primer 1068R (5′-CTGACGRCRGCCATGC-3′). The amplification reaction was carried out using the Accuprime pfx SuperMix (Thermo Scientific, USA) according to the manufacturer. PCR was performed with a thermal cycler (Thermo Scientific, USA) under the following conditions: 95°C for 5 min, 26 cycles of 95°C for 15 s, 59°C for 30 s and 68°C for 1 min. The PCR products were purified by using a DNA clean & concentrator kit (Zymo Research, USA).
  2. The amplicons from each sample were mixed at equimolar concentrations and then sequenced using GSFLX titanium instruments and reagents (Roche 454, Life Sciences, USA) at the Center for Advanced Technologies in Genomics (University of São Paulo, Brazil).

Marine, Dna sequencing, Metadata, PSW, Antarctic Penninsula, Admiralty Bay, PSW, Antarctica, Bransfield Strait, Bacteria

Geographical coverage
PSW, Antarctic Penninsula, Admiralty Bay [Marine Regions]
PSW, Antarctica, Bransfield Strait [Marine Regions]

Temporal coverage
1 December 2008 - 6 December 2008

Taxonomic coverage
Bacteria [WoRMS]

Molecular data

Federal University of Santa Catarina (UFSC), moredata creator
Universidade Federal de São Paulo (UNIFESP), moredata creator
Universidade Federal do Rio de Janeiro; Departamento de Zoologia, moredata creator
University of São Paulo, moredata creator

Related datasets
Published in:
AntOBIS: Antarctic Ocean Biodiversity Information System, more

Dataset status: Completed
Data type: Metadata
Data origin: Research: field survey
Metadatarecord created: 2019-04-03
Information last updated: 2019-04-10
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