Prospects of DNA Barcoding in Protists for Exploring and Conserving Their Biodiversity

DNA barcoding is practiced for species identification, using short, highly variable, and standardized DNA regions to accurately and efficiently identify different species. Using DNA barcoding combined with other molecular and bioinformatics technologies, such as metagenomics, transcriptomics, and environmental DNA analysis, has increased the scope of its application. Environmental DNA analysis is effective in monitoring the biodiversity of specific protists. The integrated use of these methods allows biodiversity to be evaluated at various levels, identifying rarer and newly discovered unculturable species, and studying protist functional biology in previously impossible ways. The ability of DNA analysis to be used on a broad scale and as a routine method of tracking biodiversity changes in the environment is crucial to the success of conservation efforts. High-throughput sequencing technologies offer the largely unexplored possibilities of using them to comprehensively examine protist communities, providing essential data for conservation policies, and the ability to observe changes over time. In this respect, DNA barcoding has the potential to become a key instrument in revealing the previously unknown variety of protists and providing critical data for its conservation and management. Continued progress in technology and methodology, and close collaboration among scientific researchers, conservationists, policymakers, and the general public, are also critical factors in unlocking the full potential of DNA barcoding for biodiversity research and conservation.