Complete mitochondrial genome of a tropical sea cucumber, Stichopus chloronotus

Xiaoying Chen; Yuping Sun; Hongxia Zhao; Junru Hu; Bing Chen; Huo Li; Wen Huang

doi:10.1080/23802359.2021.1967218

Complete mitochondrial genome of a tropical sea cucumber, Stichopus chloronotus

Mitochondrial DNA B Resour. 2021 Aug 31;6(10):2788-2790. doi: 10.1080/23802359.2021.1967218. eCollection 2021.

Authors

Xiaoying Chen¹, Yuping Sun¹, Hongxia Zhao¹, Junru Hu¹, Bing Chen¹, Huo Li², Wen Huang^{1

2}

Affiliations

¹ Laboratory of Aquatic Sciences, Key Laboratory of Animal Nutrition and Feed Science in South China, Ministry of Agriculture in Rural Affairs, Guangdong Key Laboratory of Animal Breeding and Nutrition, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou, China.
² Guangdong Provincial Engineering and Technology Research Center, Doctoral Workstation of Guangdong Province, Guangdong Jinyang Biotechnology Co. Ltd, Maoming, China.

Abstract

In this study, we report the complete mitochondrial genome of Stichopus chloronotus. The mitogenome was 16,247 base pairs (58.55% A + T content) in length, comprising a total of 37 genes, including 13 protein-coding genes, 22 transfer RNA genes and 2 ribosomal RNA genes. To resolve the phylogenetic position of S. chloronotus, we analyzed all mitochondrial protein-coding genes from 27 species within the Echinodermata. The results showed that S. chloronotus belonged to the family Stichopodidae and was more closely related to tropical Stichopus species (S. horrens and S. monotuberculatus) than to other species. Our results will be useful for evolutionary analysis of sea cucumber species.

Keywords: Mitochondrial genome; Stichopus chloronotus; phylogenetic analysis.

Grants and funding

This work was supported by the Guangdong Basic and Applied Basic Research Foundation under grant number 2020A1515011115, the Guangdong Academy of Agricultural Science Talent Introduction Program under grant number R2020YJ-QG001, and the Science and Technology Program of Guangdong under grant number 2019A050505007.