The combtooth blenny (Blenniidae) genus Omobranchus contains small, cryptobenthic fishes common to nearshore habitats throughout the Indo-West Pacific. Recent molecular systematic studies have resolved Omobranchus as monophyletic but little research has been done to resolve species-level relationships. Herein, phylogenetic analyses of one mitochondrial (CO1) and four nuclear (ENC1, myh6, sreb2, and tbr1) genes provide evidence for the monophyly of Omobranchus and support for the elongatus and banditus species group. Sampling of multiple individuals from widespread species (O. ferox, O. punctatus, and O. elongatus) suggested that the Thai-Malay Peninsula is a phylogeographic break that may be a historic barrier to gene flow. Additionally, common meristics and other morphological characters are used to describe an early life history stage of O. ferox and O. punctatus.
Bibliographical noteFunding Information:
This study was partially funded by Dayton Research Fund Fellowships (Bell Museum of Natural History, University of Minnesota), the Department of Fisheries, Wildlife, and Conservation Biology (University of Minnesota), the East Asia and Pacific Summer Program from Japan Society for Promotion of Science and National Science Foundation (OISE 1210051), the East Asia and Pacific Summer Program from Ministry of Science and Technology of Taiwan and National Science Foundation (OISE 1414788), the Lerner Gray Memorial Fund for Marine Research (American Museum of Natural History), and the Minnesota Agricultural Experiment Station. J. Egan received financial support from a Simons Foundations Canada Fellowship in Systematic Biology and a National Science Foundation Graduate Research Fellowship (OISE 00039202). Research was conducted under animal care and use protocol 1304-30536A approved by the University of Minnesota Animal Care and Use Committee.
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- DNA barcoding
- Thai-Malay Peninsula