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Title 

The changing epitome of species identification - DNA barcoding

Authors 

M A AliG GyulaiN HidvegiB KertiF M A HemaidA K PandeyJoongku Lee

Issue Date 

2014

Citation 

Saudi Journal of Biological Sciences, vol. 21, no. 3, pp. 204-231

Keywords 

BiodiversityConservation geneticsDNA barcodingMolecular markersPlant taxonomySpecies identification

Abstract 

The discipline taxonomy (the science of naming and classifying organisms, the original bioinformatics and a basis for all biology) is fundamentally important in ensuring the quality of life of future human generation on the earth; yet over the past few decades, the teaching and research funding in taxonomy have declined because of its classical way of practice which lead the discipline many a times to a subject of opinion, and this ultimately gave birth to several problems and challenges, and therefore the taxonomist became an endangered race in the era of genomics. Now taxonomy suddenly became fashionable again due to revolutionary approaches in taxonomy called DNA barcoding (a novel technology to provide rapid, accurate, and automated species identifications using short orthologous DNA sequences). In DNA barcoding, complete data set can be obtained from a single specimen irrespective to morphological or life stage characters. The core idea of DNA barcoding is based on the fact that the highly conserved stretches of DNA, either coding or non coding regions, vary at very minor degree during the evolution within the species. Sequences suggested to be useful in DNA barcoding include cytoplasmic mitochondrial DNA (e.g. cox1) and chloroplast DNA (e.g. rbcL, trnL-F, matK, ndhF, and atpB rbcL), and nuclear DNA (ITS, and house keeping genes e.g. gapdh). The plant DNA barcoding is now transitioning the epitome of species identification; and thus, ultimately helping in the molecularization of taxonomy, a need of the hour. The 'DNA barcodes' show promise in providing a practical, standardized, species-level identification tool that can be used for biodiversity assessment, life history and ecological studies, forensic analysis, and many more.

ISSN 

1319-562X

Link 

http://dx.doi.org/10.1016/j.sjbs.2014.03.003

Appears in Collections

1. Journal Articles > Journal Articles

Registered Date

2017-04-19


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