Morphological and molecular characterisation of Talanema ibericum sp. n. (Dorylaimida, Qudsianematidae) from southern Iberian Peninsula

IF 1.2 4区生物学 Q2 ZOOLOGY

Nematology Pub Date : 2022-11-18 DOI:10.1163/15685411-bja10214

R. Peña‐Santiago, Nazareth Cortés, M. García-Ruiz, J. Abolafia

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引用次数: 2

Abstract

A new species of the genus Talanema, T. ibericum sp. n., collected in natural areas of southeastern Iberian Peninsula, is characterised, including morphological description, line, LM and SEM illustrations, and molecular (18S, D2-D3 28S rDNA sequences) study. The new species is distinguished by its 1.27-1.59 mm long body, lip region offset by constriction and 14-16.5 μm wide with perioral liplets, odontostyle 16.5-19.5 μm long, neck 285-359 μm long, pharyngeal expansion occupying 42-48% of the total neck length, uterus tripartite and 147-228 μm long or 2.6-4.0 body diam., vulva transverse (V = 53-59), presence of cuticular irregularities at both sides of vulva, female tail conical with a dorsal concavity (27-40 μm, c = 36-54, c′ = 1.0-1.3), male tail short and rounded conoid (24 μm, c = 66, c′ = 0.8), spicules 58 μm long, and 17 almost contiguous ventromedian supplements with hiatus. Morphological and molecular data reveal that the new species is similar to (but easily separable from) T. baqrii, with which it is compared. Present results support the monophyly of the genus Talanema.

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来自伊比利亚半岛南部的iberanema ibericum sp. n. (Dorylaimida, Qudsianematidae)的形态和分子特征

本文对采集于伊比利亚半岛东南部自然地区的Talanema属一新种T. ibericum sp. n.进行了鉴定，包括形态描述、线条、LM和SEM图以及分子(18S, D2-D3 28S rDNA序列)研究。该新种体长1.27 ~ 1.59 mm，唇部缩窄，宽14 ~ 16.5 μm，有口周小唇，齿柱长16.5 ~ 19.5 μm，颈长285 ~ 359 μm，咽部扩张占颈总长度42 ~ 48%，子宫三部，长147 ~ 228 μm，体径2.6 ~ 4.0，外阴横(V = 53 ~ 59)，外阴两侧表皮不规则，雌尾圆锥形，背凹(27 ~ 40 μm, c = 36 ~ 54, c′= 1.0 ~ 1.3)。雄尾短，圆锥形(24 μm, c = 66, c′= 0.8)，针状体长58 μm, 17个几乎相邻的腹中补孔。形态学和分子数据表明，该新种与T. baqrii相似(但易于分离)，并与之进行比较。目前的研究结果支持该属的单系性。

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.