Categorization of species as native or nonnative using DNA sequence signatures without a complete reference library.

ABSTRACT: New genetic diagnostic approaches have greatly aided efforts to document global biodiversity and improve biosecurity. This is especially true for organismal groups in which species diversity has been underestimated historically due to difficulties associated with sampling, the lack of clear morphological characteristics, and/or limited availability of taxonomic expertise. Among these methods, DNA sequence barcoding (also known as "DNA barcoding") and by extension, meta-barcoding for biological communities, has emerged as one of the most frequently utilized methods for DNA-based species identifications. Unfortunately, the use of DNA barcoding is limited by the availability of complete reference libraries (i.e., a collection of DNA sequences from morphologically identified species), and by t

SUBMITTER: Andersen JC 

PROVIDER: S-EPMC7079013 | biostudies-literature | 2019 Jul

REPOSITORIES: biostudies-literature