Abstract:

DNA barcode of life has become one of hotspots of biology research in the recent years．DNA barcoding is now well established for animals．However，DNA barcoding in plants is going on slowly．And the search for an analogous region to plant has focused on chloroplast DNA and the internal transcribed spacers of nuclear ribosomal．The quest for a universal DNA barcode in plants is still disputed．In this paper，the advance of these barcoding regions and their combinations are reviwed，the advantages，criterion，drawbacks，existed dispute，and the prospect of application of DNA barcoding in plant are summaried．