Morphological taxonomy is the first requirement. Without classical taxonomy it is impossible to carry out molecular Taxonomy I(it is like a Tyre you donot know which car it belongs to) . That correct identification is done by morphological characters and then the specimen is borcoded and the borcode is submitted. If some one identifying based on barcode which is present in BOLD / gene bank and the one who has submitted has missed correct identification, the exercise goes wrong. Therefore it is requested to go far correct identification seriously then only bar code and submit. If I have identified a specimen correctly and I try to match bar code of my specimen with already present in BOLD/ genebank, is wrong then I will land with many confusions like I will think mine is a new species etc. IT HAS TO BE DONE VERY CAREFULLY
by followed up product of this gene using methods that involved protein extraction of other methods which is required long time and cost, so genotypic detection of gene and its expression represented a useful and time resuming