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Description and molecular phylogeny of Ditylenchus gilanicus n. sp. (Nematoda: Anguinidae) from northern forests of Iran

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Abstract

Ditylenchus gilanicus n. sp. is described and illustrated based on morphological, morphometric and molecular characters. The new species is characterized by its small body size, six lines in the lateral field, weak stylet with distinct rounded knobs, median pharyngeal bulb with refractive valvular apparatus, pharyngeal bulb offset from intestine, female reproductive system having long post-vulval uterine sac (PUS), elongate conoid tail with pointed tip and common males with small spicules. Morphological differences between the new species and eight closely related species of the genus namely D. australiae, D. dauniae, D. elegans, D. filenchulus, D. geraerti, D. longicauda, D. medicaginis and D. zeae are discussed. Phylogenetic analyses using partial 18S rDNA and 28S rDNA D2/D3 sequences revealed that the new species belong to D. triformis-group.

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Acknowledgements

We acknowledge the Iranian National Science Foundation (INSF) and Tarbiat Modares University (Iran) for financial supports to this project.

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Authors and Affiliations

  1. Department of Plant Pathology, Faculty of Agriculture, Tarbiat Modares University, Tehran, Iran

    Ali Yaghoubi, Ebrahim Pourjam & Majid Pedram

  2. Nematode Assay Section, Agronomic Division, North Carolina Department of Agriculture and Consumer Services, Raleigh, NC, 27607, USA

    Weimin Ye

  3. Instituto de Agricultura Sostenible (IAS), Consejo Superior de Investigaciones Científicas (CSIC), Avda. Menendez Pidal s/n, 14004, Córdoba, Spain

    Pablo Castillo

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Correspondence to Ebrahim Pourjam.

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Yaghoubi, A., Pourjam, E., Ye, W. et al. Description and molecular phylogeny of Ditylenchus gilanicus n. sp. (Nematoda: Anguinidae) from northern forests of Iran. Eur J Plant Pathol 152, 735–746 (2018). https://doi.org/10.1007/s10658-018-1516-6

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