Corresponding author: Donald Hobern (
Academic editor:
Between 2010 and 2015, the International Barcode of Life (iBOL) consortium successfully completed the BARCODE 500K project, a $125 million effort that delivered DNA barcode coverage for 500,000 species. BIOSCAN is a seven-year program (2019-2025) that builds on this foundation, expanding coverage of the barcode reference library to two million species and operationalising metabarcoding for eukaryote communities globally. BIOSCAN will scan species assemblages from at least 2,500 ecosystems and will codify species interactions for at least 2,500 sites.
DNA barcoding is a well-established approach for rapid, cost-effective species diagnosis, with many applications in support of taxonomy, biosecurity, conservation, and monitoring. Uptake has been particularly significant in hyperdiverse invertebrate groups where morphological approaches to species identification are often limiting (because of the scale of diversity and the small number of expert taxonomists) or inapplicable (for example in associating individuals from different life stages). The barcode reference library maintained as
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The BIOSCAN program, launched by iBOL in 2019, seeks to operationalise DNA barcoding at the global scale for development of species inventories and preliminary exploration of undescribed diversity, for surveying community composition across the world's ecosystems, and codifying species interactions (the symbiome). BIOSCAN will exploit the latest advances in sequencing platforms to lower costs, increase precision, and accelerate processing of samples, to speed the uptake of DNA barcoding for protecting life on Earth.
Donald Hobern
Biodiversity_Next 2019