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Molecular profiling of soil animal diversity in natural ecosystems : incongruence of molecular and morphological results.

Wu, Tiehang H. and Ayres, Edward and Li, Grace and Bardgett, Richard D. and Wall, Diana H. and Garey, James R. (2009) Molecular profiling of soil animal diversity in natural ecosystems : incongruence of molecular and morphological results. Soil Biology and Biochemistry, 41 (4). pp. 849-857. ISSN 0038-0717

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Abstract

A major problem facing ecologists is obtaining a complete picture of the highly complex soil community. While DNA-based methods are routinely used to assess prokaryote community structure and diversity in soil, approaches for measuring the total faunal community are not yet available. This is due to difficulties such as designing primers specific to a range of soil animals while excluding other eukaryotes. Instead, scientists use laborious and specialized taxonomic methods for extracting and identifying soil fauna. We examined this problem using DNA sequencing to profile soil animal diversity across two Alaskan ecosystems and compare the results with morphological analyses. Of 5267 sequences, representing 549 operational taxonomic units (OTU), only 18 OTUs were common to both sites. Representatives included 8 phyla, dominated by arthropods and nematodes. This is the most comprehensive molecular analysis of soil fauna to date, and provides a tool to rapidly assess a missing component of soil biodiversity.

Item Type: Article
Journal or Publication Title: Soil Biology and Biochemistry
Uncontrolled Keywords: Biodiversity ; Soil ; DNA sequence ; Community structure ; Phylogenetic analysis ; Morphological analysis
Subjects: G Geography. Anthropology. Recreation > GE Environmental Sciences
Departments: Faculty of Science and Technology > Lancaster Environment Centre
ID Code: 31297
Deposited By: Mr Richard Ingham
Deposited On: 07 Jan 2010 16:04
Refereed?: Yes
Published?: Published
Last Modified: 26 Jul 2012 16:55
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/31297

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