DNA barcoding for elasmobranch diversity assessment in Thailand: Its advantages and limitations.

ABSTRACT: The assessment of elasmobranch biodiversity in Thailand benefits greatly from the application of DNA barcoding, which helps mitigate the challenge posed by a shortage of expert taxonomists. Fragments of COI and ND2 mitochondrial DNA were examined, and the strengths and weaknesses of these two markers were compared. In this study, DNA products from 153 elasmobranch samples were amplifiable and revealed a total of 28 shark species and 32 batoid species. Many species could be confidently identified as their morphological characteristics aligned with DNA barcodes. However, several exceptions were recognized. The absence of reference sequences for rare species presented a challenge for species verification, and the misidentification of reference sequences, as well as changes in species names du

SUBMITTER: Khudamrongsawat J 

PROVIDER: S-EPMC12578239 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature