Authors
Carmelo Andujar, Thomas J Creedy, Paula Arribas, Heriberto Lopez, Antonia Salces-Castellano, Antonio Perez-Delgado, Alfried P Vogler, Brent C Emerson
Publication date
2020/1/1
Journal
BioRxiv
Publisher
Cold Spring Harbor Laboratory
Description
Metabarcoding of Metazoa using mitochondrial genes may be confounded by both the accumulation of PCR and sequencing artefacts and the co‐amplification of nuclear mitochondrial pseudogenes (NUMTs). The application of read abundance thresholds and denoising methods is efficient in reducing noise accompanying authentic mitochondrial amplicon sequence variants (ASVs). However, these procedures do not fully account for the complex nature of concomitant sequences and the highly variable DNA contribution of specimens in a metabarcoding sample. We propose, as a complement to denoising, the metabarcoding Multidimensional Abundance Threshold Evaluation (metaMATE) framework, a novel approach that allows comprehensive examination of multiple dimensions of abundance filtering and the evaluation of the prevalence of unwanted concomitant sequences in denoised metabarcoding …
Total citations
2020202120222023202411015152
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