Microbiome (Bacteria, Archaea and fungi) from University Valley Permafrost cores (Antarctica)

Dernière version Publié par SCAR - Microbial Antarctic Resource System le Mar 19, 2019 SCAR - Microbial Antarctic Resource System

Amplicon sequencing dataset (Bacteria and Archaea based on 16S ssu rRNA gene, Fungi and other eukaryotes, based on the ITS marker) of microorganisms in permafrost samples (two cores with three different depths) taken in University Valley, Antarctica.

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Comment citer

Les chercheurs doivent citer cette ressource comme suit:

Goordial J, Davila A, Lacelle D, Pollard W, Marinova M, Greer C, DiRuggiero J, McKay C, Whyte L (2019): Microbiome (Bacteria, Archaea and fungi) from University Valley Permafrost cores (Antarctica). v1.1. SCAR - Microbial Antarctic Resource System. Dataset/Metadata. https://ipt.biodiversity.aq/resource?r=microbiome_university_valley_permafrost_antarctica&v=1.1

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L’éditeur et détenteur des droits de cette ressource est SCAR - Microbial Antarctic Resource System. This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License.

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Cette ressource a été enregistrée sur le portail GBIF, et possède l'UUID GBIF suivante : 3d255a2a-c297-4588-b67c-e0c2b4a31709.  SCAR - Microbial Antarctic Resource System publie cette ressource, et est enregistré dans le GBIF comme éditeur de données avec l'approbation du Scientific Committee on Antarctic Research.

Mots-clé

Metadata

Contacts

Personne ayant créé cette ressource:

Jacqueline Goordial
McGill University Ste-Anne-de-Bellevue CA
Alfonso Davila
NASA Ames Research Center Moffett Field US
Denis Lacelle
University of Ottawa Ottawa CA
Wayne Pollard
McGill University Montreal CA
Margarita Marinova
NASA Ames Research Center Moffett Field US
Charles Greer
National Research Council Canada Montreal CA
Jocelyn DiRuggiero
The Johns Hopkins University Baltimore US
Christopher McKay
NASA Ames Research Center Moffett Field US
Lyle Whyte
McGill University Ste-Anne-de-Bellevue CA

Personne pouvant répondre aux questions sur la ressource:

Jacqueline Goordial
McGill University Ste-Anne-de-Bellevue CA

Personne ayant renseigné les métadonnées:

Maxime Sweetlove
Research assistent
Royal Belgian Institute of Natural Sciences Rue Vautier 29 1000 Brussels BE

Autres personnes associées à la ressource:

Utilisateur

Couverture géographique

University Valley, McMurdo Dry Valleys, Antarctica

Enveloppe géographique Sud Ouest [-77.864, 160.729], Nord Est [-77.864, 160.729]

Couverture taxonomique

Bacteria were profiled by targeting the 16S ssu rRNA gene

Domain  Bacteria (Bacteria)

Archaea were profiled by targeting the 16S ssu rRNA gene

Domain  Archaea (Archaea)

Fungi (and some other Eukaryote groups) were profiled by targeting the ITS marker

Phylum  Fungi (Fungi)

Données sur le projet

Pas de description disponible

Titre Microbiome (Bacteria, Archaea and fungi) from University Valley Permafrost cores (Antarctica)
Financement This work was supported by NASA ASTEP program and with field support via NSF/OPP (project B-302-M). Support was provided by the Natural Sciences and Engineering Research Council (NSERC) Discovery Grant Program, NSERC Northern Supplements Program and NSERC CREATE Canadian Astrobiology Training Program (CATP).

Les personnes impliquées dans le projet:

Jacqueline Goordial

Méthodes d'échantillonnage

University Valley permafrost core samples were collected with a SIPRE corer (USA Cold Regions Research and Engineering Laboratory, Hanover, NH, USA). The cores were 0.3 km apart from each other. Samples were shipped to McGill University in a thermally insulated box and maintained at −20 °C until processing. All sample handling and processing were carried out according to protocols developed for low biomass permafrost soils to minimize contamination. Initial core processing took place in a walk-in freezer held at −5 °C in a dedicated laminar flow hood where 1 cm of the outside of the core was removed with a sterilized chisel. An additional 1 cm of the outside core was removed in a biological safety cabinet at room temperature immediately before samples being weighed and aliquoted for analysis. Dedicated biological safety cabinets, which had been pretreated to remove DNA/RNA or cells, were used for sample processing, nucleic acid extraction and PCR preparation.

Etendue de l'étude Samples were taken in December 2009 from permafrost soils in University Valley (1650–1800 m above sea level (a.s.l.)), located 450 m above Beacon Valley in the Quartermain Range. Samples analysed in this study were located near the head of the valley close to the glacier, a shadowed region where the soil surface experiences few thaw hours, and where the uppermost 50 cm of ice content in the ice-cemented permafrost formed from water vapour diffusion into the cryotic soils rather than from liquid water.
Contrôle qualité Negative controls (H2O in place of soil) underwent identical handling during the extraction procedure and were used as templates for PCR using 16S rRNA gene primers (27 F and 1492 R) to ensure no contamination during extraction.

Description des étapes de la méthode:

  1. Community DNA was extracted from 2 g of permafrost soil using the UltraClean Soil DNA Isolation kit (MoBio Laboratories Inc., Carlsbad, CA, USA), as described in the alternative protocol for maximum yield, and a bead beating step was added to aid lysis. For each sample, five extractions were performed and the resulting DNA was pooled and concentrated.
  2. DNA was sent for small subunit rDNA pyrosequencing analyses at the Research and Testing Laboratory (Lubbock, TX, USA) using the Roche 454 GS-FLX platform (Roche 454, Branford, CT, USA). Sample libraries were prepared with the following primers for bacterial 16S rRNA gene (28F-5′-GAGTTTGATCNTGGCTCAG-3′, 519R-5′-GTNTTACNGCGGCKGCTG-3′), archaeal 16S rRNA gene (349F-5′-GYGCASCAGKCGMGAAW-3′, 806R-5′-GGACTACVSGGGTATCTAAT-3′), Eukaryal/fungal internal transcribed region (ITS) (ITS1F-5′-CTTGGTCATTTAGAGGAAGTAA-3′, ITS4R-5′-TCCTCCGCTTATTGATATGC-3′) genes.

Citations bibliographiques

  1. Goordial, J., Davila, A., Lacelle, D., Pollard, W., Marinova, M. M., Greer, C. W., ... & Whyte, L. G. (2016). Nearing the cold-arid limits of microbial life in permafrost of an upper dry valley, Antarctica. The ISME journal, 10(7), 1613.

Métadonnées additionnelles

Identifiants alternatifs 3d255a2a-c297-4588-b67c-e0c2b4a31709
https://ipt.biodiversity.aq/resource?r=microbiome_university_valley_permafrost_antarctica