Research Article

Complete mitochondrial genome sequence of the humphead wrasse, Cheilinus undulatus

Published: April 10, 2013
Genet. Mol. Res. 12 (2) : 1095-1105 DOI: https://doi.org/10.4238/2013.April.10.5
Cite this Article:
X.Z. Qi, S.W. Yin, J. Luo, R. Huo (2013). Complete mitochondrial genome sequence of the humphead wrasse, Cheilinus undulatus. Genet. Mol. Res. 12(2): 1095-1105. https://doi.org/10.4238/2013.April.10.5
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Abstract

The humphead wrasse (Cheilinus undulatus) is a large coral fish that has become threatened due to habitat loss and fishing pressure. We sequenced the mitochondrial genome of C. undulatus, using a normal PCR method. The complete mtDNA sequence encoded 13 protein genes, 22 tRNA genes and 2 rRNA genes. It was found to be 16,613 bp in length and had an overall H-strand base compositions of 27.3 for A, 30.9 for C, 16.8 for G, and 25.0% for T. Compared with the sequences of 8 other members of the family Labridae, gene content, genome organization, and nucleotide compositions were similar. All tRNAs formed a typical clover-leaf structure, except tRNASer (AGY), and most of the size variations among tRNAs stemmed from variations of length in the arm and loop of TΨC, and loop of DHU.

The humphead wrasse (Cheilinus undulatus) is a large coral fish that has become threatened due to habitat loss and fishing pressure. We sequenced the mitochondrial genome of C. undulatus, using a normal PCR method. The complete mtDNA sequence encoded 13 protein genes, 22 tRNA genes and 2 rRNA genes. It was found to be 16,613 bp in length and had an overall H-strand base compositions of 27.3 for A, 30.9 for C, 16.8 for G, and 25.0% for T. Compared with the sequences of 8 other members of the family Labridae, gene content, genome organization, and nucleotide compositions were similar. All tRNAs formed a typical clover-leaf structure, except tRNASer (AGY), and most of the size variations among tRNAs stemmed from variations of length in the arm and loop of TΨC, and loop of DHU.

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