Biodiversitas Journal of Biological Diversity
Vol. 18 No. 4 (2017)

Use of DNA barcode in the identification of catfishes (Siluriformes: Ariidae) from Malaysia

MOHD LUTFI ABDULLAH (School of Biological Sciences, Universiti Sains Malaysia. 11800 Penang, Malaysia.)
SITI AZIZAH MOHD NOR (School of Biological Sciences, Universiti Sains Malaysia. 11800 Penang, Malaysia.)
DARLINA MD. NAIM (School of Biological Sciences, Universiti Sains Malaysia. 11800 Penang, Malaysia)



Article Info

Publish Date
04 Oct 2017

Abstract

Abdullah ML, Nor SAM, Naim DMd. 2017. Use of DNA barcode in the identification of catfishes (Siluriformes: Ariidae) from Malaysia. Biodiversitas 18: 1358-1366. The genus Ariidae contains many valuable fish species threatened by overfishing, but knowledge on distribution and threats is still limited due to taxonomic ambiguities. The aim of this study was to apply DNA barcoding techniques to establish a resource of DNA for identification of Ariidae species in Malaysia. A 621 bp of mitochondrial cytochrome oxidase subunit I (COI) gene was utilized to resolve phylogenetic relationships and molecular taxonomy of eight presumed Malaysian Ariid species. We found the monophyly of most species was well established with a mean Kimura-2 parameter (K2P) interspecies distance of 9.6% except for two species, Arius venosus, and Nemapteryx caelata that have very low interspecies genetic distance. The BLAST result shows only two species matched the presumably eight identified fish species. Such discrepancies could arise as a result of misidentifications or errors in GenBank database input, hybridization or incomplete lineage sorting. We suggest the use of DNA barcoding is integrated into the workflow during taxonomic studies as it could significantly increase knowledge about species distributions.

Copyrights © 2017






Journal Info

Abbrev

biodiv

Publisher

Subject

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

Description

The Biodiversitas Journal was first published in 2000 by the Department of Biology, FMNS, Universitas Sebelas Maret, Surakarta, Indonesia, then in 2006 it was co-published by the Society for Indonesian Biodiversity and that department; since 2017 it was also hosted by Smujo. From 2003-2012 it was ...