Complete mitochondrial genome and phylogenetic analysis of Cirriformia tentaculata (Annelida, Polychaeta, Cirratulidae) from Weihai, Shandong, China.

Pub Date : 2024-07-26 eCollection Date: 2024-01-01 DOI:10.1080/23802359.2024.2381783

Hongjing Zhao, Jianlong Ge, Meijie Liao, Yingeng Wang, Xiaojun Rong, Jinjin Wang, Chunying Yuan, Qingman Cui

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Abstract

Cirriformia species usually inhabit intertidal zones and deep-sea sediments. Their accurate identification has proven to be challenging. Here, we present the complete mitochondrial genome of one Cirriformia tentaculata_Montagu 1808 specimen collected from China. The total length of the complete mitochondrial sequence of C. tentaculata is 15,516 bp and consists of 13 protein-coding genes (PCGs), 23 tRNA genes, two rRNA genes, and an A + T rich region (64.20%). All PCGs begin with the typical ATN start codon, except for cox1, which uses TTG. TAA or TAG serve as termination codons for twelve PCGs, while nad5 terminates with an incomplete codon, T. The phylogenetic tree revealed a close relationship between C. tentaculata in this study, and Cirriformia cf. tentaculata and Timarete posteria from Korea. The information will assist in the future identification and understanding of this species and offers a novel point of reference for identifying Cirriformia species, and phylogenetic studies.

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来自中国山东威海的Cirriformia tentaculata（无脊椎动物，多毛纲，Cirratulidae）的完整线粒体基因组及系统发育分析。

Cirriformia 物种通常栖息在潮间带和深海沉积物中。事实证明，对它们进行准确鉴定具有挑战性。在此，我们展示了采集自中国的一个 Cirriformia tentaculata_Montagu 1808 标本的完整线粒体基因组。C. tentaculata 完整的线粒体序列总长度为 15,516 bp，由 13 个蛋白编码基因（PCGs）、23 个 tRNA 基因、2 个 rRNA 基因和一个富含 A + T 的区域（64.20%）组成。除 cox1 使用 TTG 外，所有 PCG 都以典型的 ATN 起始密码子开始。系统发生树显示，本研究中的 C. tentaculata 与韩国的 Cirriformia cf. tentaculata 和 Timarete posteria 关系密切。这些信息将有助于今后对该物种的鉴定和了解，并为鉴定 Cirriformia 物种和系统发育研究提供了一个新的参考点。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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