Description of Deladenus hyrcanus sp. n. (Tylenchomorpha, Neotylenchidae) from Iran

© 2025 Mohammad Esmaeil Agh Atabai et al., published by Sciendo.

Détails bibliographiques
Publié dans:Journal of nematology. - 1969. - 57(2025), 1 vom: 25. Feb., Seite 20250037
Auteur principal: Agh Atabai, Mohammad Esmaeil (Auteur)
Autres auteurs: Aliramaji, Farzad, Shokoohi, Ebrahim
Format: Article en ligne
Langue:English
Publié: 2025
Accès à la collection:Journal of nematology
Sujets:Journal Article Deladenus gilanica fungivorous morphology nematodes rDNA taxonomy
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520 |a During a survey on the members of the family Neotylenchidae in northern Iran, a population of Deladenus was recovered, which, based on the morphology and molecular characters, identified as a new species. Deladenus hyrcanus sp. n., was isolated from dead wood of Acer velutinum in Balaband forests, Mazandaran Province. Morphologically, the new species is characterized by the moderate body length of the mycetophagous females (718-806 μm) with c = 10.2-12.6, c' = 3.5-4.4 and V = 86-87, stylet length 7.5-10 μm with three small knobs inclined backward, the lateral field with 7-8 incisures, position of excretory pore at level of hemizonid or slightly posterior to it, lacking a post-uterine sac, elongate-conoid tail (58-72 μm), with rounded to pointed terminus and males not observed. According to similarities in general morphology, D. hyrcanus sp. n., resembles D. gilanica and D. zyzyphus; however, the new species is distinguished from them in body length, lateral field incisures, and tail length. It was furthermore compared with D. aridus, D. bonabensis and D. brevis, by similarities in the position of the excretory pore and hemizonid, posterior to the nerve ring, lack of a median chamber, and a conoid tail narrowing to a rounded to pointed terminus. Molecular phylogenetic analysis based on D2-D3 expansion domain of 28S rDNA placed the new species close to D. gilanica in a clade with 1.00 posterior probability. The measurements, line illustration, and LM photographs are provided for the new species 
650 4 |a Journal Article 
650 4 |a Deladenus gilanica 
650 4 |a fungivorous 
650 4 |a morphology 
650 4 |a nematodes 
650 4 |a rDNA 
650 4 |a taxonomy 
700 1 |a Aliramaji, Farzad  |e verfasserin  |4 aut 
700 1 |a Shokoohi, Ebrahim  |e verfasserin  |4 aut 
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