Determining of DNA-Barcoding of 6 – 8 species by partial sequencing of mtDNA (CO1) using molecular method (PCR-Sequencing)

Barcodes are short segments of DNA that can be used to uniquely identify an unknown specimen to species, particularly when diagnostic morphological features are absent. These sequences could offer a new forensic tool in plant and animal Conservation-especially for endangered species. It was proved that a small fragment of mitochondrial DNA from the 5′-end of cytochrome c oxidase subunit 1 (COI) gene as a reliable, quick and costeffective identification system for most Crustacea like shrimp. Take a look in DNA barcoding website show that there is a little data about Iranian shrimps which live in Persian Gulf and Oman Sea. In this Study six species of shrimp: Fenoro penaeus indicus, Fenoro penaeus merguensis, penaeus semisulcatus, Metapenaeus affinis, Marsupenaeus japonicas, Fenoro penaeus penicillatus were collected from different stations in Persian Gulf and Oman Sea. All materials were preserved in 70% ethanol and were shipped to the laboratory for taxonomic studies. After identification, the total DNA was extracted; COI gene was first amplified and then sequenced for each species. Finally the collected data were analyzed with the specific phylogenetic software. The results were amazing and the interesting part was that analytical methods for showing species relationship suggested that Fenoro penaeus penicillatus is closer to Marsupenaeus gnus than penaeus gnus. This finding needs more investigation to be proved. We suggest a workflow for DNA barcoding, including database generation and management, which will ultimately be necessary if we are to succeed to join universal DNA barcode for Crustacea.

Iranian Fisheries Science Research Institute

Published