DNA metabarcoding marker choice skews perception of marine eukaryotic biodiversity

Jordan M Casey, Emma Ransome, Allen G Collins, Angka Mahardini, Eka M Kurniasih, Andrianus Sembiring, Nina M D Schiettekatte, Ni Kadek Dita Cahyani, Aji Wahyu Anggoro, Mikaela Moore, Abby Uehling, Mahdi Belcaid, Paul H Barber, Jonathan B Geller & Christopher P Meyer
DNA metabarcoding is an increasingly popular technique to investigate biodiversity; however, many methodological unknowns remain, especially concerning the biases resulting from marker choice. Regions of the cytochrome c oxidase subunit I (COI) and 18S rDNA (18S) genes are commonly employed “universal” markers for eukaryotes, but the extent of taxonomic biases introduced by these markers and how such biases may impact metabarcoding performance is not well quantified. Here, focusing on macro-eukaryotes, we use standardized sampling from...
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2 downloads reported since publication in 2021.

These counts follow the COUNTER Code of Practice, meaning that Internet robots and repeats within a certain time frame are excluded.
What does this mean?