Characterization of the complete mitochondrial genome of Longicollum pagrosomi yamaguti, 1935 (Palaeacanthocephala: Echinorhynchida) in cultured large yellow croaker (Larimichthys crocea) and its phylogenetic implications.

IF 2.4 3区医学 Q2 PARASITOLOGY

Parasitology Pub Date : 2025-07-01 DOI:10.1017/S003118202510036X

Zhongjie Ren, Xiaoao Yang, Lihua Jiang, Denghui Zhu, Zhen Tao, Yanjie Wang, Peipei Fu, Rui Song

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Abstract

A species of acanthocephalan collected from the hindgut of Larimichthys crocea was identified as Longicollum pagrosomi Yamaguti, 1935 based on morphological characteristics. The complete mitochondrial genome of this parasite was sequenced. The mitogenome exhibited a circular structure with a total length of 14 632 bp, containing 12 protein coding genes (PCGs), 2 ribosomal RNAs (rRNAs), 22 transfer RNAs (tRNAs) and 2 major non-coding regions. The most frequently used start codon was GTG, and the most abundant amino acid was valine. The phylogenetic analyses of the mitogenome using Bayesian inference and maximum likelihood methods showed that the genus Longicollum formed a sister clade to the genus Pomphorhynchus, supporting the monophyly of Pomphorhynchus. This study reported a new host for L. pagrosomi and revealed the first complete mitogenome sequence of the genus Longicollum.

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养殖大黄鱼（Larimichthys crocea） Longicollum pagrosomi Yamaguti, 1935（古棘头目：棘头目）线粒体全基因组的特征及其系统发育意义。

根据形态特征鉴定，从crocea Larimichthys后肠中采集的棘头虫为Longicollum pagrosomi Yamaguti， 1935。对该寄生虫的全线粒体基因组进行了测序。有丝分裂基因组呈圆形结构，全长14 632 bp，包含12个蛋白质编码基因（PCGs）、2个核糖体rna （RNAs）、22个转移rna （tRNAs）和2个主要非编码区。最常用的起始密码子是GTG，最丰富的氨基酸是缬氨酸。利用贝叶斯推断和最大似然方法对有丝分裂基因组进行系统发育分析，结果表明，长柱属与Pomphorhynchus属是一个姐妹分支，支持Pomphorhynchus属的单系性。本研究报道了一个新的寄主，揭示了长柱属植物的第一个完整的有丝分裂基因组序列。

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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来源期刊

Parasitology 医学-寄生虫学

CiteScore

4.80

自引率

4.20%

发文量

280

审稿时长

3-8 weeks

期刊介绍： Parasitology is an important specialist journal covering the latest advances in the subject. It publishes original research and review papers on all aspects of parasitology and host-parasite relationships, including the latest discoveries in parasite biochemistry, molecular biology and genetics, ecology and epidemiology in the context of the biological, medical and veterinary sciences. Included in the subscription price are two special issues which contain reviews of current hot topics, one of which is the proceedings of the annual Symposia of the British Society for Parasitology, while the second, covering areas of significant topical interest, is commissioned by the editors and the editorial board.