Comparison of the complete mitochondrial genome of Phyllophorus liuwutiensis (Echinodermata: Holothuroidea: Phyllophoridae) to that of other sea cucumbers

FEBS Open Bio

Ngoc Tuan Tran¹  Fuyuan Yang²  Qiuhua Yang²  Zaiqiao Sun²  Chenhui Zhong²  Jianshao Wu²  Zhihuang Zhu²  Qi Lin²  Zhen Lu²  Hui Ge²  Chen Zhou² 

[1] Institute of Marine Sciences Guangdong Provincial Key Laboratory of Marine Biotechnology Shantou University China;Key Laboratory of Cultivation and High‐value Utilization of Marine Organisms in Fujian Province Fisheries Research Institute of Fujian Xiamen China;

关键词: mitochondrial genome;    Phyllophorus liuwutiensis;    sea cucumber;    sequence analysis;    structure characteristic;   

DOI  :  10.1002/2211-5463.12914

来源: DOAJ

【 摘 要 】

Sea cucumber species are abundant (>1400 species) and widely distributed globally. mtDNA sequencing is frequently used to identify the phylogenetic and evolutionary relationships among species. However, there are no reports on the mitochondrial genome of Phyllophorus liuwutiensis. Here, we performed mtDNA sequencing of P. liuwutiensis to examine its phylogenetic relationships with other echinoderms. Its mitochondrial genome (15 969 bp) contains 37 coding genes, including 13 protein‐coding genes, 22 tRNA genes and 2 rRNA genes. Except for one protein‐coding gene (nad6) and five tRNA genes encoded on the negative strand, all other genes were encoded on the positive strand. The mitochondrial bases of P. liuwutiensis were composed of 29.55% T, 22.16% C, 35.64% A and 12.64% G. The putative control region was 703 bp in length. Seven overlapping regions (1–10 bp) were found. The noncoding region between the genes ranged from 1 to 130 bp in length. One putative control region has been found in the P. liuwutiensis mitogenome. All of the tRNA genes were predicted to fold into a cloverleaf structure. In addition, we compared the gene arrangements of six echinoderms, revealing that the gene order of P. liuwutiensis was a new arrangement.

【 授权许可】

Unknown