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Mitogenome Announcement Characterization of the complete mitochondrial genome of golden tank goby, Glossogobius aureus (Perciformes: Gobiidae).

ABSTRACT: We applied next-generation sequencing (NGS) method to construct the complete mitochondrial genome of Glossogobius aureus. The obtained mitogenome of G. aureus (16,590 bp) exhibited a typical structure harboring 13 protein-coding genes (PCGs), 22 transfer RNAs (tRNAs), two ribosomal RNAs (rRNAs), and one control regions (D-loop). Most of mitochondrial genes are encoded on the heavy (H) strand, except for eight tRNAs and ND6. Unusual start codons were identified in COX1 (GTG) and ATP6 (TTG). Six genes (ND2, COX2, COX3, ND3, ND4, and CytB) were terminated by an incomplete stop codon (TA-/T-). A phylogenetic study showed that Glossogobius formed a clade distinct from other species in the subfamily Gobiinae. G. aureus was most closely related to G. giuris with 87.04% sequence identity among the four species in the genus Glossogobius.

SUBMITTER: Fu'adil Amin MH

PROVIDER: S-EPMC7759244 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature

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Mitogenome Announcement Characterization of the complete mitochondrial genome of golden tank goby, Glossogobius aureus (Perciformes: Gobiidae).

Fu'adil Amin Muhammad Hilman MH Tabassum Nazia N Kim Ah-Ran AR Lee Dae-Sung DS Kim Hyun-Woo HW

Mitochondrial DNA. Part B, Resources 20201224 4

We applied next-generation sequencing (NGS) method to construct the complete mitochondrial genome of Glossogobius aureus. The obtained mitogenome of G. aureus (16,590 bp) exhibited a typical structure harboring 13 protein-coding genes (PCGs), 22 transfer RNAs (tRNAs), two ribosomal RNAs (rRNAs), and one control regions (D-loop). Most of mitochondrial genes are encoded on the heavy (H) strand, except for eight tRNAs and ND6. Unusual start codons were identified in COX1 (GTG) and ATP ...[more]

PMID: 33426288

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Project description:The golden flathead goby Glossogobius aureus is a native species in the Philippines, Australia, Japan, Taiwan, and many other countries in Asia. In the Philippines, it is an important food fish as it is commonly caught in major lakes. In this study, a total of 307 specimens morphologically identified as G. aureus were sampled from nine major lakes in the Philippines and were sequenced for their mitochondrial cytochrome b (cyt b) gene. Two hundred sixty of the 307 cyt b sequences had sequence similarities of ≥ 99% with G. aureus reference sequence in GenBank, while the remaining 47 (all from Lake Lanao) had sequence similarities of only 95% and were thus designated as Glossogobius cf. aureus and treated as a separate population. The sequences were then analyzed to examine the pattern of genetic diversity, relatedness, divergence, and demographic history among native and translocated populations of the species. Twenty-nine haplotypes were recovered, of which four haplotypes were shared among three to seven populations. Only one haplotype each was found in the native population in Lake Buhi and translocated population in Lake Paoay. Low haplotype and low nucleotide diversities were found for the populations in Laguna de Bay, Lanao, Bato, Buhi, Paoay, and Sebu lakes, which indicate founder event for the introduced populations in Lanao, Paoay, and Sebu lakes and recent genetic bottleneck for the native populations in Laguna de Bay, Bato, and Buhi. In contrast, high haplotype but low nucleotide diversities were found for the native populations of Taal, Naujan, and Buluan lakes, signifying a recent bottleneck followed by population expansion. Pairwise FST values showed generally large (FST = 0.168-0.249) to very large (FST = 0.302-1.000) genetic divergence between populations except between Laguna de Bay and Lake Bato, Laguna de Bay and Lake Buhi, and Lake Bato and Lake Buhi populations, which showed nonsignificant genetic differentiation. Lake Buluan and Lake Sebu populations showed moderate genetic differentiation (FST = 0.098). Neutrality tests showed significant negative Tajima's D and Fu's FS values only for the population from Laguna de Bay, which suggests that the population is undergoing expansion. These results are important for establishing scientifically sound strategies for effective conservation and sustainable exploitation of G. aureus in the Philippines.

Dataset Information

Mitogenome Announcement Characterization of the complete mitochondrial genome of golden tank goby, Glossogobius aureus (Perciformes: Gobiidae).

Publications

Mitogenome Announcement Characterization of the complete mitochondrial genome of golden tank goby, <i>Glossogobius aureus</i> (Perciformes: Gobiidae).

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