DNA barcoding and traditional taxonomy: An integrative approach

Taxonomic classification of vertebrates and invertebrates is one of the most important and challenging method for biologists. Previously, species discovery and taxonomic classification were based on morphological features, ecology, reproductive isolation, or behavior. However, most species remain unidentified due to the slow progress and lack of expertise in the relevant field. Furthermore, there is very little morphological variation in cryptic species, making it difficult to discriminate between them. Therefore, there is a need for a highly informative, rapid, and easy procedure to resolve these issues. Integrative approach is a new and robust technique that uses for species identification, classification, and discrimination. Most taxonomists consider DNA barcoding as a threat to traditional taxonomy. However, research indicates that DNA barcoding and traditional taxonomy are complimentary to each other. Here we advocate a combined approach of traditional taxonomy and DNA barcoding called integrated taxonomy. Integrated taxonomy is the most authentic and informatic to new species discovering, taxonomic classification and research. Recently, most studies have employed integrated approach because it is not only used for taxonomic classification but also for phylogeney, phylogeography, population genetics, ecology, development, behavior, and temperature studies. It is the most useful and relevant approach for delineating novel species, biodiversity research, and conservation.