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Survey functional genes in Arctic marine sediment communities

ABSTRACT: Survey functional genes in Arctic marine sediment communities

PROVIDER: PRJNA483318 | ENA |

REPOSITORIES: ENA

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Survey functional genes in Arctic marine sediment communities

Project description:The objective was to identify functional genes encoded by Fungi and fungal-like organisms to assess putative ecological roles Using the GeoChip microarray, we detected fungal genes involved in the complete assimilation of nitrate and the degradation of lignin, as well as evidence for Partitiviridae (a mycovirus) that likely regulates fungal populations in the marine environment. These results demonstrate the potential for fungi to degrade terrigenously-sourced molecules, such as permafrost and compete with algae for nitrate during blooms. Ultimately, these data suggest that marine fungi could be as important in oceanic ecosystems as they are in freshwater environments.

2020-07-14 | GSE117831 | GEO

Survey of Functional Genes in the Arctic Soil

Project description:The objective of this study was to identify the different functional genes involved in key biogeochemical cycles in the low Arctic regions. Understanding the microbial diversity in the Arctic region is an important step to determine the effects of climate change on these areas.

2021-03-11 | GSE168623 | GEO

Survey of Functional Genes in the Arctic Soil of Pond Inlet

Project description:The objective of this study was to identify the different functional genes involved in key biogeochemical cycles in thehigh Arctic regions. Understanding the microbial diversity in the Arctic region is an important step to determine the effects of climate change on these areas.

2021-03-17 | GSE168985 | GEO

Survey of Functional Genes in the Arctic Soil of Whapmagoostui-Kuujjuarapik

Project description:The objective of this study was to identify the different functional genes involved in key biogeochemical cycles in the sub- Arctic regions. Understanding the microbial diversity in the Arctic region is an important step to determine the effects of climate change on these areas.

2021-03-16 | GSE168911 | GEO

Survey of Functional Genes in the Arctic Soil

Project description:Survey of Functional Genes in the Arctic Soil

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Survey of Functional Genes in the Arctic Soil of Whapmagoostui-Kuujjuarapik

Project description:Survey of Functional Genes in the Arctic Soil of Whapmagoostui-Kuujjuarapik

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Survey of Functional Genes in the Arctic Soil of Pond Inlet

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Arctic sediment

Project description:Arctic sediment Raw sequence reads

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Arctic sediment

Project description:Microbial biogeography in the Arctic subsurface sediment

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microbial functional genes are fundamentally different from bacterial phylogenetic distributions in arctic soils

Project description:Understanding biological diversity and distribution patterns at multiple spatial scales is a central issue in ecology. Here, we investigated the biogeographical patterns of functional genes in soil microbes from 24 arctic heath sites using GeoChip-based metagenomics and principal coordinates of neighbour matrices (PCNM)-based analysis. Functional gene richness varied considerably among sites, while the proportions of each major functional gene category were evenly distributed. Functional gene composition varied significantly at most medium and broad spatial scales, and the PCNM analyses indicated that 14-20% of the variation in total and major functional gene categories could be attributed primarily to relatively broad-scale spatial effects that were consistent with broad-scale variation in soil pH and total nitrogen. The combination of variance partitioning and multi-scales analysis indicated that spatial distance effects contributed 12% to variation in functional gene composition，whereas environmental factors contributed only 3%. This relatively strong influence of spatial as compared to environmental variation in determining functional gene distributions contrasts sharply with typical microbial phylotype/species-based biogeographical patterns in the Arctic and elsewhere. Our results suggest that the distributions of soil functional genes cannot be predicted from phylogenetic distributions because spatial factors associated with historical contingencies are relatively important determinants of their biogeography.

2014-12-10 | GSE63927 | GEO

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