Description of Hemicycliophora geraerti n. sp. (Tylenchida: Hemicycliophoridae) associated with Prunus persica L. from China

IF 1.2 4区生物学 Q2 ZOOLOGY

Nematology Pub Date : 2022-12-22 DOI:10.1163/15685411-bja10210

Chenying Zhang, M. Munawar, P. Castillo, Shousheng Han, Jingwu Zheng

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Abstract

Hemicycliophora species are migratory root ectoparasites of higher plants, commonly known as sheath nematodes. The present study describes a new species, Hemicycliophora geraerti n. sp., recovered from the rhizosphere of peach tree (Prunus persica) in Zhejiang Province, China. This species is characterised by a cuticular sheath loosely fitting to the body, a lip region slightly set-off with body contour bearing 3-4 annuli, oral plate narrow, ovate, and non-protruding, amphidial apertures plugged, dorsoventrally flanked in the first lip annulus, stylet 110 (103-116) μm long and flexible, excretory pore located 4-7 annuli posterior to the base of the pharyngeal bulb; vulval lips modified with a small vulval sleeve, anus located 16 (13-21) annuli posterior to vulva, tail elongated, having a narrowly rounded slightly offset spike. The molecular characterisation and phylogenetic analyses based on D2-D3 expansion segments of the 28S rRNA, ITS rRNA, and COI mtDNA gene indicated the unique status and support the novelty of this population of Hemicycliophora, therefore herein described as H. geraerti n. sp.

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文章标题中国桃李(Prunus persica L.)的伴生半环蚜(半环蚜科)描述

半环线虫是高等植物的迁移根外寄生虫，俗称鞘线虫。本文报道了浙江省桃树(Prunus persica)根际中发现的一新种——半环蚜(Hemicycliophora geraerti n. sp.)。本种的特征是角质层鞘与身体松散贴合，唇部略偏置，身体轮廓有3-4个环，口板狭窄，卵形，不突出，两侧孔塞住，第一个唇环背腹两侧，花柱长110 (103-116)μm，柔韧，排泄孔位于咽球基部后4-7个环;外阴唇具一小外阴套，肛门位于外阴后16(13-21)环空，尾部拉长，具一狭圆稍偏置的穗状突起。基于28S rRNA、ITS rRNA和COI mtDNA基因D2-D3扩增片段的分子特征和系统发育分析表明，该群体具有独特的地位，并支持其新颖性，因此本文将其命名为H. geraerti n. sp。

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来源期刊

Nematology 生物-动物学

CiteScore

2.60

自引率

33.30%

发文量

审稿时长

3 months

期刊介绍： Nematology is an international journal for the publication of all aspects of nematological research (with the exception of vertebrate parasitology), from molecular biology to field studies. Papers on nematode parasites of arthropods, and on soil free-living nematodes, and on interactions of these and other organisms, are particularly welcome. Research on fresh water and marine nematodes is also considered when the observations are of more general interest. Nematology publishes full research papers, short communications, Forum articles (which permit an author to express a view on current or fundamental subjects), perspectives on nematology, and reviews of books and other media.