AUTHOR=Honeycutt Rodney L. TITLE=Editorial: DNA Barcodes: Controversies, Mechanisms, and Future Applications JOURNAL=Frontiers in Ecology and Evolution VOLUME=9 YEAR=2021 URL=https://www.frontiersin.org/journals/ecology-and-evolution/articles/10.3389/fevo.2021.718865 DOI=10.3389/fevo.2021.718865 ISSN=2296-701X