Morphological and molecular characterisation of Talanema maculatum sp. n. (Dorylaimida, Qudsianematidae) from Iran

IF 1.2 4区生物学 Q2 ZOOLOGY

Nematology Pub Date : 2023-04-05 DOI:10.1163/15685411-bja10242

M. Asgari, Mahsa Mohammadlou, A. Eskandari, J. Abolafia, R. Peña‐Santiago

引用次数: 0

Abstract

A new species of the genus Talanema, T. maculatum sp. n., collected in a natural enclave of Iran, is characterised on the basis of morphological and molecular data. It is distinguishable by its 1.82-2.20 mm long body, lip region offset by constriction and 20-23 μm wide with perioral liplets, odontostyle 21.5-28 μm long, guiding ring double, neck 394-525 μm long, pharyngeal expansion occupying 44-49% of the total neck length, uterus tripartite and 308-441 μm long or 5.1-6.8 body diam., vulva transverse (V = 54-58), presence of abundant cuticle irregularities at the perivulval area, tail similar in both sexes, conical with a dorsal concavity (31-45 μm, c = 46-71, c′ = 0.9-1.1), spicules 70-75 μm long, and 14-18 shortly spaced ventromedian supplements ending at level of the anterior end of spicules, with hiatus. Molecular analysis of 28S-rDNA gene confirms the monophyly of Talanema and the difficulties in elucidating its external evolutionary relationships.

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伊朗黄斑塔拉蝇属(Dorylaimida, Qudsianematidae)形态学和分子特征

在形态和分子数据的基础上，对采集于伊朗天然飞地的Talanema属一新种T.maculatum sp.n进行了表征。其体长1.82-2.20 mm，唇区因收缩而偏移，宽20-23μm，口周唇，齿型长21.5-28μm，双导环，颈部长394-525μm，咽部扩张占颈部总长度的44-49%，子宫三方，308-441μm长或5.1-6.8体径，外阴横向（V=54-58），外阴周围区域存在大量角质层不规则性，尾部两性相似，圆锥形，背部凹陷（31-45μm，c=46-71，c′=0.9-1.1），针状物长70-75μm，14-18个短间隔的腹内侧补品终止于针状物前端水平，并有裂孔。28S rDNA基因的分子分析证实了Talanema的单系性以及阐明其外部进化关系的困难。

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

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.