<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>A new species of the genus <italic>Talanema</italic>, recovered from the northwest of Iran, was described based on morphological, morphometric, and molecular data. <italic>Talanema</italic> eshtiaghii sp. n. was characterized by its 1.45–1.68 mm long body, lip region offset by constriction and 13–15 μm wide, odontostyle 15–18 μm long, double guiding ring, neck 312–362 μm long, pharyngeal expansion occupying 41–43% of the total neck length, uterus tripartite, and 111–189 μm long or 2.1–3.2 body diameters, vulva transverse (V = 55–58), tail similar in both sexes, conical with a dorsal concavity (30–44 μm, c = 33–56, c’ = 1.0–1.6), spicules 49–56 μm long, and 14–18 shortly spaced ventromedian supplements in front of the level of the anterior end of spicules, with distinct hiatus. It was compared to four closely similar species, with emphasis on the most relevant traits to distinguish them. Molecular phylogenetic studies using partial sequence of the 28S rDNA (D2–D3 segment) revealed that the new species forms a clade with other currently sequenced representatives of <italic>Talanema</italic>, tentatively supporting the monophyly of this genus.</p>
</abstract>

A new species of the genus Talanema, recovered from the northwest of Iran, was described based on morphological, morphometric, and molecular data. Talanema eshtiaghii sp. n. was characterized by its 1.45–1.68 mm long body, lip region offset by constriction and 13–15 μm wide, odontostyle 15–18 μm long, double guiding ring, neck 312–362 μm long, pharyngeal expansion occupying 41–43% of the total neck length, uterus tripartite, and 111–189 μm long or 2.1–3.2 body diameters, vulva transverse (V = 55–58), tail similar in both sexes, conical with a dorsal concavity (30–44 μm, c = 33–56, c’ = 1.0–1.6), spicules 49–56 μm long, and 14–18 shortly spaced ventromedian supplements in front of the level of the anterior end of spicules, with distinct hiatus. It was compared to four closely similar species, with emphasis on the most relevant traits to distinguish them. Molecular phylogenetic studies using partial sequence of the 28S rDNA (D2–D3 segment) revealed that the new species forms a clade with other currently sequenced representatives of Talanema, tentatively supporting the monophyly of this genus.

Morphological and Molecular Characterization of <italic>Talanema eshtiaghii</italic> sp. n. (Dorylaimida, Qudsianematidae) from Iran

Department of Plant Protection, Faculty of Agriculture

Departamento de Biología Animal, Biología Vegetal y Ecología

Universidad de Jaén, Campus ‘Las Lagunillas’ s/n

Journal of Nematology

This work is licensed under the Creative Commons Attribution 4.0 International License.

Morphological and Molecular Characterization of  sp. n. (Dorylaimida, Qudsianematidae) from Iran

A new species of the genus Talanema, recovered from the northwest of Iran, was described based on morphological, morphometric, and molecular data. Talanema...

Morphological and Molecular Characterization of Talanema eshtiaghii sp. n. (Dorylaimida, Qudsianematidae) from Iran

Article Category: Research Paper

Published Online: Jun 05, 2023

Page range: -

Received: Dec 18, 2022

DOI: https://doi.org/10.2478/jofnem-2023-0022

Keywords
Bayesian inference, D2–D3 rDNA, phylogeny, taxonomy

© 2023 Nasir Vazifeh et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Morphological and Molecular Characterization of Talanema eshtiaghii sp. n. (Dorylaimida, Qudsianematidae) from Iran

Article Category: Research Paper

Published Online: Jun 05, 2023

Page range: -

Received: Dec 18, 2022

DOI: https://doi.org/10.2478/jofnem-2023-0022

KeywordsBayesian inference, D2–D3 rDNA, phylogeny, taxonomy

© 2023 Nasir Vazifeh et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Keywords
Bayesian inference, D2–D3 rDNA, phylogeny, taxonomy