Samsudin Nurul Farhana, Zainal Abidin Muchlisin, Thuy Yen Duong, Suwat Tanyaros, Larry M. Page, Yahui Zhao, Eleanor A.S. Adamson, Md. Zain Khaironizam, Mark De Bruyn, Mohd Nor Siti Azizah
Members of the freshwater halfbeak genus Dermogenys are hard to identify to the species level, despite several previous attempts to isolate fixed meristic, morphometric and colour pattern differences. This has led to ongoing confusion in scientific literature, records of species occurrence, and entries in museum collections. Here, a DNA barcoding study was conducted on the genus to gain further understanding of its taxonomic status across the Southeast Asian region. Fish were collected from 33 localities, spanning freshwater and brackish habitats in Malaysia, Western Indonesia, Thailand and Vietnam. In total, 290 samples of Dermogenys spp. were amplified for a 651 base pair fragment of the mitochondrial cytochrome oxidase c subunit I (COI) gene. Analysis was able to successfully differentiate the three species: D. collettei, D. siamensis, D. sumatrana; reveal the presence of a new putative species, Dermogenys sp., that was sampled in sympatry with D. collettei at three locations; as well as uncovering two genetic lineages of a fifth species, D. bispina, that display non-overlapping geographical distributions in drainages of northern Borneo; Kudat and Sandakan. This study expands the barcode library for Zenarchopteridae, demonstrates the efficacy of DNA barcoding techniques for differentiating Dermogenys species, and the potential thereof in species discovery. © 2018 The Author(s).
School of Biological Sciences, Universiti Sains Malaysia, Minden, Penang, 11800, Malaysia; Faculty of Marine and Fisheries, Syiah Kuala University, Banda Aceh, 23111, Indonesia; College of Aquaculture and Fisheries, Cantho University, Cantho City, Viet Nam; Faculty of Science and Fisheries Technology, Rajamangala University of Technology Srivijaya, Trang Campus, Trang, 92150, Thailand; Florida Museum of Natural History, Gainesville, 32611, FL, United States; Institute of Zoology, Chinese Academy of Sciences, Datun Road, Chaoyang District, Beijing, 100101, China; Natural History Museum, Cromwell Road, London, SW7 5BD, United Kingdom; Fishmongers' Company, Fishmongers' Hall, London Bridge, London, EC4R 9EL, United Kingdom; University of Sydney, School of Life and Environmental Sciences, Sydney, NSW, Australia; Institute of Marine Biotechnology, Universiti Malaysia Terengganu, Kuala Terengganu, Terengganu, 21030, Malaysia
Research at a Glance
Register to unlock
Topics & SDG Alignment
Register to unlock
Collaboration
Register to unlock
Author Profile (Selected)
Register to unlock
References Overview
Register to unlock
Journal & Source
Register to unlock
Metadata & Integrity
Register to unlock