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Nat Rev Microbiol. 2015 Jul;13(7):439-46. doi: 10.1038/nrmicro3468. Epub 2015 Jun 8.

Dispersing misconceptions and identifying opportunities for the use of 'omics' in soil microbial ecology.

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Institute of Biological and Environmental Sciences, University of Aberdeen, Cruickshank Building, St. Machar Drive, Aberdeen, AB24 3UU, UK.


Technological advances are enabling the sequencing of environmental DNA and RNA at increasing depth and with decreasing costs. Metagenomic and transcriptomic analysis of soil microbial communities and the assembly of 'population genomes' from soil DNA are therefore now feasible. Although the value of such 'omic' approaches is limited by the associated technical and bioinformatic difficulties, even if these obstacles were eliminated and 'perfect' metagenomes and metatranscriptomes were available, important conceptual challenges remain. This Opinion article considers these conceptual challenges in the context of the current use of omics in soil microbiology, but the main arguments presented are also relevant to the application of omics to marine, freshwater, gut or other environments.

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