The complete mitochondrial genome of Pseudocolochirus violaceus (Cucumariidae, Dendrochirotida)

Abstract

The complete mitochondrial genome of Pseudocolochirus violaceus was obtained and described in this study. This complete mitochondrial genome is 15,752 bp in length and consists of 13 protein-coding genes, 2 ribosomal RNA genes, and 22 transfer RNA genes. Except ND6 and 5 tRNAs, the others were encoded by the heavy strand. The overall base composition of the heavy-strand was 38.65% A, 12.09% G, 24.31% C, and 24.95% T, with a high A + T content of 63.6%. The phylogenetic analysis suggested that P. violaceus was closest to Cucumaria miniata. The newly described mitochondrial genome may provide valuable data for phylogenetic analysis for Holothuroidea.

Keywords:

• Pseudocolochirus violaceus
• mitochondrial genome
• phylogeny

Disclosure statement

No potential conflict of interest was reported by the author(s).

Data availability

The data that support the findings of this study are openly available in NCBI at https://www.ncbi.nlm.nih.gov/, reference number MT587564.

Additional information

Funding

This work was supported by the National Natural Science Foundation of China [grant number 31872571], [grant number 31902373]; the Natural Science Foundation of Guangdong Province [grant number 2018A030307029]; and the Foundation of Department of Education of Guangdong Province [grant number 2019KZDXM018], [grant number 2018KTSCX127].