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DNA barcodes enable higher taxonomic assignments in the Acari
- Source :
- Scientific Reports, Vol 11, Iss 1, Pp 1-13 (2021), Scientific Reports
- Publication Year :
- 2021
- Publisher :
- Nature Portfolio, 2021.
-
Abstract
- Although mites (Acari) are abundant in many terrestrial and freshwater ecosystems, their diversity is poorly understood. Since most mite species can be distinguished by variation in the DNA barcode region of cytochrome c oxidase I, the Barcode Index Number (BIN) system provides a reliable species proxy that facilitates large-scale surveys. Such analysis reveals many new BINs that can only be identified as Acari until they are examined by a taxonomic specialist. This study demonstrates that the Barcode of Life Datasystem’s identification engine (BOLD ID) generally delivers correct ordinal and family assignments from both full-length DNA barcodes and their truncated versions gathered in metabarcoding studies. This result was demonstrated by examining BOLD ID’s capacity to assign 7021 mite BINs to their correct order (4) and family (189). Identification success improved with sequence length and taxon coverage but varied among orders indicating the need for lineage-specific thresholds. A strict sequence similarity threshold (86.6%) prevented all ordinal misassignments and allowed the identification of 78.6% of the 7021 BINs. However, higher thresholds were required to eliminate family misassignments for Sarcoptiformes (89.9%), and Trombidiformes (91.4%), consequently reducing the proportion of BINs identified to 68.6%. Lineages with low barcode coverage in the reference library should be prioritized for barcode library expansion to improve assignment success.
- Subjects :
- Classification and taxonomy
Science
Barcode
DNA barcoding
Article
law.invention
Electron Transport Complex IV
law
Mite
Animals
DNA Barcoding, Taxonomic
Acari
Trombidiformes
DNA sequencing
Ecosystem
Gene Library
Mites
Multidisciplinary
biology
Biodiversity
DNA
biology.organism_classification
Sarcoptiformes
Data processing
Taxon
Genetic Techniques
Evolutionary biology
Next-generation sequencing
Genetic markers
Medicine
Identification (biology)
Subjects
Details
- Language :
- English
- ISSN :
- 20452322
- Volume :
- 11
- Issue :
- 1
- Database :
- OpenAIRE
- Journal :
- Scientific Reports
- Accession number :
- edsair.doi.dedup.....654e1a146da7bbf29c69aebe2023297a