DNA Barcoding

DNA barcoding is a taxonomic method that uses a short genetic marker in an organism's DNA to identify it as belonging to a particular species. It differs from molecular phylogeny in that the main goal is not to determine classification but to identify an unknown sample in terms of a known classification. Although barcodes are sometimes used in an effort to identify unknown species or assess whether species should be combined or separated, the utility of DNA barcoding for these purposes is subject to debate.

Applications include, for example, identifying plant leaves even when flowers or fruit are not available, identifying insect larvae (which typically have fewer diagnostic characters than adults), identifying the diet of an animal based on stomach contents or faeces, and identifying products in commerce (for example, herbal supplements or wood).

Read more about DNA Barcoding:  Choice of Locus, Vouchered Specimens, Origin, Criticisms, DNA Barcoding Software

Famous quotes containing the word dna:

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