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Biodiversity between sand grains: Meiofauna composition across southern and western Sweden assessed by metabarcoding
Swedish Museum of Natural History, Department of Zoology.
Swedish Museum of Natural History, Department of Zoology. Stockholm University.
2020 (English)In: Biodiversity Data Journal, ISSN 1314-2836, E-ISSN 1314-2828, Vol. 8, article id e51813Article in journal (Refereed) Published
Abstract [en]

The meiofauna is an important part of the marine ecosystem, but its composition and distribution patterns are relatively unexplored. Here we assessed the biodiversity and community structure of meiofauna from five locations on the Swedish western and southern coasts using a high-throughput DNA sequencing (metabarcoding) approach. The mitochondrial cytochrome oxidase 1 (COI) mini-barcode and nuclear 18S small ribosomal subunit (18S) V1-V2 region were amplified and sequenced using Illumina MiSeq technology. Our analyses revealed a higher number of species than previously found in other areas: thirteen samples comprising 6.5 dm3 sediment revealed 708 COI and 1,639 18S metazoan OTUs. Across all sites, the majority of the metazoan biodiversity was assigned to ArthropodaNematoda and Platyhelminthes. Alpha and beta diversity measurements showed that community composition differed significantly amongst sites. OTUs initially assigned to AcoelaGastrotricha and the two Platyhelminthes sub-groups Macrostomorpha and Rhabdocoela were further investigated and assigned to species using a phylogeny-based taxonomy approach. Our results demonstrate that there is great potential for discovery of new meiofauna species even in some of the most extensively studied locations.

Place, publisher, year, edition, pages
Sarah Atherton , 2020. Vol. 8, article id e51813
Keywords [en]
Illumina Mi-Seq, High Throughput Sequencing, Acoela, Gastrotricha, Platyhelminthes, Macrostomorpha, Rhabdocoela, Species Identification
National Category
Zoology
Research subject
Diversity of life
Identifiers
URN: urn:nbn:se:nrm:diva-3885DOI: 10.3897/BDJ.8.e51813OAI: oai:DiVA.org:nrm-3885DiVA, id: diva2:1506024
Funder
The Swedish Taxonomy Initiative (ArtDatabanken, SLU)Available from: 2020-12-02 Created: 2020-12-02 Last updated: 2020-12-09Bibliographically approved

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CiteExportLink to record
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