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.

摘要

在这项研究中，我们报告了Stichopus chloronotus的完整线粒体基因组。有丝分裂基因组长度为16,247个碱基对（A+T含量58.55%），共包含37个基因，包括13个蛋白质编码基因、22个转移RNA基因和2个核糖体RNA基因。为了解析S. chloronotus的系统发育位置，我们分析了棘皮动物内 27 个物种的所有线粒体蛋白编码基因。结果表明，S. chloronotus属于家庭Stichopodidae并更密切相关的热带刺参种（S. horrens和S. monotuberculatus) 而不是其他物种。我们的结果将有助于海参物种的进化分析。