Phylogenetic Relationships and Taxonomic Position of the Ribbon Worms of the Genus Parahubrechtia (Nemertea, Palaeonemertea) with Descriptions of Two New Species.

IF 1.5 3区生物学 Q2 ZOOLOGY

Zoological Studies Pub Date : 2022-08-15 eCollection Date: 2022-01-01 DOI:10.6620/ZS.2022.61-38

Alexei V Chernyshev, Neonila E Polyakova, Shi-Chun Sun

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Abstract

The genus Parahubrechtia Gibson and Sundberg, 1999 was first described within the family Hubrechtiidae (class Pilidiophora) and subsequently transferred to the family Callineridae (class Palaeonemertea). Here we describe two new species, Parahubrechtia rayi sp. nov. from the Sea of Japan (Russia) and P. peri sp. nov. from the South China Sea (China). A phylogenetic analysis based on partial sequences of five nuclear and mitochondrial gene regions, 18S rRNA, 28S rRNA, histone H3, 16S rRNA, and COI, has confirmed the monophyly of the genus Parahubrechtia, and indicated a close relationship to Callinera Bergendal, 1900, whose monophyly is not confirmed. Both genera belong to the family Tubulanidae, with its junior synonym being Callineridae. Three major subclades are distinguished within the Tubulanidae: subclade Tubulanus s. str., subclade Tubulanus punctatus, and subclade Parahubrechtia + Callinera. The further status of Parahubrechtia depends on whether the paraphyly of Callinera is confirmed or not and how the problem of paraphyly of the genus Tubulanus Renier, 1804 is resolved.

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副带虫属(Nemertea, Palaeonemertea)的系统发育关系和分类地位及两新种记述。

Parahubrechtia Gibson和Sundberg, 1999年首次在Hubrechtiidae科(Pilidiophora纲)中被描述，随后被转移到Callineridae科(Palaeonemertea纲)。本文报道了来自日本海(俄罗斯)的Parahubrechtia rayi sp. nov和来自中国南海(中国)的P. peri sp. nov两个新种。基于18S rRNA、28S rRNA、组蛋白H3、16S rRNA和COI 5个核和线粒体基因区域的部分序列进行系统发育分析，证实了Parahubrechtia属的单系性，并表明其与calinera Bergendal, 1900有密切的亲缘关系，后者的单系性尚未得到证实。这两个属都属于管状花科，其低级同义是针状花科。管虫科中有三个主要的亚支系:管虫亚支系、点状管虫亚支系和副管虫亚支系。Parahubrechtia的进一步地位取决于Callinera的类属是否得到证实，以及如何解决Tubulanus Renier, 1804属类属的问题。

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来源期刊

Zoological Studies 生物-动物学

CiteScore

2.80

自引率

6.20%

发文量

审稿时长

6-12 weeks

期刊介绍： Zoological Studies publishes original research papers in five major fields: Animal Behavior, Comparative Physiology, Evolution, Ecology, and Systematics and Biogeography. Manuscripts are welcome from around the world and must be written in English. When the manuscript concerns the use of animals or specimens in research, a statement must be included to the effect that the author(s) has adhered to the legal requirements of the country in which the work was carried out or to any institutional guidelines.