Zoological Studies

Vol. 61, 2022

(update: 2022.11.14)

Comparative Analysis of Complete Mitogenomes of Two Oxyurichthys Gobies and Their Phylogenetic Implication

Quan Van Nguyen1, Chien Pham Van1, Thanh Nguyen Xuan1, Jung-Il Kim2, Frank L. Pezold3,4, The Nguyen Duc1, Hiep Le Minh1, Chang-Bae Kim2, Viet Do Hung Dang1,*, and Thinh Dinh Do1,*

1Institute of Marine Environment and Resources, Vietnam Academy of Science and Technology, Haiphong, Vietnam. *Correspondence: E-mail: vietddh@imer.vast.vn (Dang); thinhdd@imer.vast.vn (Do).
E-mail: quannv@imer.vast.vn (Nguyen); chienpv@imer.vast.vn (Van); thanhnx@imer.vast.vn (Xuan); thend@imer.vast.vn (Duc); hieplm@imer.vast.vn (Minh)
2Department of Biotechnology, Sangmyung University, Seoul 03016, South Korea. E-mail: kim2429@gmail.com (JI Kim); evodevo@smu.ac.kr (CB Kim)
3Department of Life Sciences, Texas A&M University-Corpus Christi, Corpus Christi, TX, 78412-5806, USA. E-mail: frank.pezold@tamucc.edu (Pezold)
4Florida Museum of Natural History, University of Florida, Gainesville, FL, 32611-7800, USA

Received 20 July 2021 / Accepted 17 October 2022
Communicated by Ka Hou Chu

Oxyurichthys is a genus of goby that is widespread in the tropical Indo-West Pacific region. Oxyurichthys species are usually found in estuarine and coastal marine habitats. In Southeast Asia, they are commercial fishes and often collected by trawling to serve the market’s demand. The mitogenome serves as a good marker for investigating the systematics and evolution of fishes, but the mitogenome of Oxyurichthys species remains unknown. In this study, mitogenomes of two Oxyurichthys gobies, O. ophthalmonema and O. microlepis, were characterized and compared. The sizes of the mitogenomes were 16,504 bp and 16,506 bp for O. ophthalmonema and O. microlepis, respectively. Mitogenomes of these two species were similar in gene content and structure. Both included 37 genes and a control region. The two Oxyurichthys mitogenomes shared similar gene features and base composition with other recorded gobies. Typical conserved blocks (CSB-1, CSB-2, CSB-3 and CSB-D) were found in the control region of both species. Phylogenetic analyses based on concatenation of 13 protein-coding genes and 2 rRNAs revealed that the two Oxyurichthys species clustered together and were sister to species of the genera Sicydium, Sicyopterus and Stiphodon. The findings of the present study support previous evolutionary studies of gobies using other molecular markers.

Key words: Gobies, Mitogenome, Gene structure, Control region, Phylogeny.

Citation: Nguyen QV, Van CP, Xuan TN, Kim JI, Pezold FL, Duc TN, Le Minh H, Kim CB, Dang VDH, Do TD. 2022. Comparative analysis of complete mitogenomes of two Oxyurichthys gobies and their phylogenetic implication. Zool Stud 61:88.

Supplementary materials: Fig. S1Fig. S2Fig. S3Fig. S4Table S1Table S2