Morphological and molecular characterisation of Longidorus patuxentensis n. sp. (Nematoda: Longidoridae) from Maryland and California, USA

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2023-11-08 DOI:10.1163/15685411-bja10296

Mihail R. Kantor, Sergei A. Subbotin, Bill Im, Zafar A. Handoo

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Abstract

Summary A new needle nematode species, Longidorus patuxentensis n. sp., was collected along the banks of the Western Branch Patuxent River from Upper Marlboro, MD, USA, and described herein. Female body length of the new species ranges from 3.8 to 5.2 mm, with a set off lip region by depression, 77-92 μ m long odontostyle, 40-53 μ m long odontophore, vulva located at 46.3-50.1% and tail conoid with bluntly rounded tip. The new species has four juvenile developmental stages and no males. It looks morphologically similar to L. breviannulatus , L. elongatus , L. martini , L. americanus , L. grandis , L. sabalanicus and L. sturhani by having a ventrally curved to spiral body, generally similar lip region and conoid tail with a rounded terminus, but differs from these species by the odontostyle, odontophore, total stylet length and a few other characters. Phylogenetic analysis of the D2-D3 expansion segments of 28S rRNA gene sequences placed L. patuxentensis n. sp. in a clade with L. litchi , L. fangi , L. jonesi , L. diadecturus and Longidorus sp. The D2-D3 sequence of L. patuxentensis n. sp. was identical to that of Longidorus sp.5 collected from Juglans sp. growing in Butte County, California, USA. The D2-D3 of 28S and ITS1 rRNA and COI gene sequences indicated that the Maryland and California populations belong to the same species, described herein as L. patuxentensis n. sp.

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美国马里兰州和加利福尼亚州长线虫科长线虫的形态和分子特征

摘要在美国马里兰州上万宝路(Upper Marlboro)帕塔克森特河(Patuxent River)西部支流河岸采集到一种针状线虫，并对其进行了描述。新种雌体体长3.8 ~ 5.2 mm，唇部凹陷，齿柱长77 ~ 92 μ m，齿孔长40 ~ 53 μ m，外阴占46.3 ~ 50.1%，尾圆锥形，尖粗圆。这个新物种有四个幼年发育阶段，没有雄性。在形态上与L. breviannulatus、L. elongatus、L. martini、L. americanus、L. grandis、L. sabalanicus和L. sturhani相似，具有腹弯至螺旋形的身体，大体相似的唇区和圆锥形尾部，末端为圆形，但在齿柱、齿孔、总柱头长度和其他一些特征上与这些物种不同。通过28S rRNA基因序列D2-D3扩增片段的系统发育分析，将帕塔克森l.s patuxentensis n. sp.与L. litchi、L. fangi、L. jonesi、L. diadecturus和Longidorus sp.属同一支系。帕塔克森l.s patuxentensis n. sp. D2-D3序列与美国加利福尼亚州Butte县Juglans sp.5中收集的Longidorus sp. D2-D3序列相同。28S和ITS1 rRNA的D2-D3序列和COI基因序列表明，马里兰和加利福尼亚居群属于同一种，本文将其称为patuxentensis n. sp。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.