Abstract
DNA barcode is a fragment of short DNA sequence from a standard part of the genome. DNA barcoding is an effective taxonomic method for species identification through analyzing the DNA barcodes. With the dramatic increasing of DNA barcode sequences, the analysis methods have developed rapidly, which promoted their applications in molecular identification for organisms. Since 2003, DNA barcoding has been widely used in species identification for animals, plants, fungi, etc. It has also robustly promoted the development of scientific disciplines, such as taxonomy, biodiversity science, and ecology. Based on review of DNA barcoding techniques, we summarized five main analysis methods on DNA barcodes, i.e. the genetic distance-, genetic similarity-, phylogenetic tree-, sequence characters-, and statistical classification-based methods. Moreover, we proposed a prospect for research and applications of DNA barcoding in the future.
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