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Description of Rotylenchus urmiaensis n. sp. (Nematoda: Hoplolaimidae) from North-western Iran with a molecular phylogeny of the genus

In: Nematology
Authors:
Elmira Noruzi 1Department of Plant Protection, Faculty of Agriculture, University of Zanjan, Zanjan, 45371-38791, Iran

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Ramezan Asghari 1Department of Plant Protection, Faculty of Agriculture, University of Zanjan, Zanjan, 45371-38791, Iran

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Mohammad Reza Atighi 2Department of Plant Pathology, Faculty of Agriculture, Tarbiat Modares University, Tehran, Iran

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Ali Eskandari 1Department of Plant Protection, Faculty of Agriculture, University of Zanjan, Zanjan, 45371-38791, Iran

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Carolina Cantalapiedra-Navarrete 3Institute for Sustainable Agriculture (IAS), Spanish National Research Council (CSIC), Alameda del Obispo s/n, Apdo. 4084, 14080 Córdoba, Campus de Excelencia Internacional Agroalimentario, ceiA3, Spain

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Antonio Archidona-Yuste 3Institute for Sustainable Agriculture (IAS), Spanish National Research Council (CSIC), Alameda del Obispo s/n, Apdo. 4084, 14080 Córdoba, Campus de Excelencia Internacional Agroalimentario, ceiA3, Spain

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Gracia Liébanas 4Department of Animal Biology, Vegetal Biology and Ecology, University of Jaén, Campus ‘Las Lagunillas’ s/n, Edificio B3, 23071 Jaén, Spain

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Pablo Castillo 3Institute for Sustainable Agriculture (IAS), Spanish National Research Council (CSIC), Alameda del Obispo s/n, Apdo. 4084, 14080 Córdoba, Campus de Excelencia Internacional Agroalimentario, ceiA3, Spain

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Juan E. Palomares-Rius 3Institute for Sustainable Agriculture (IAS), Spanish National Research Council (CSIC), Alameda del Obispo s/n, Apdo. 4084, 14080 Córdoba, Campus de Excelencia Internacional Agroalimentario, ceiA3, Spain

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A new bisexual species of Rotylenchus from North-western Iran is described and illustrated based on morphological, morphometric and molecular studies. Rotylenchus urmiaensis n. sp. is characterised by having a truncate lip region with irregular longitudinal striation, lateral field areolated only in pharynx region, stylet length 34-40 μm, vulva positioned at 53-61%, and female tail conoid-rounded to dorsally convex-conoid with 5-10 annuli. Rotylenchus urmiaensis n. sp. appears to be similar to R. striaticeps, from which it may be differentiated morphologically by a slightly shorter body length (870-1269 vs 1000-1723 μm), shorter stylet (34-40 vs 39-50 μm), female tail shape (conoid-rounded to dorsally convex-conoid vs rounded), frequency of males (rare vs common as abundant as females), shorter spicules (39-43 vs 41-50 μm) and phasmid position (varying from three annuli anterior or three annuli posterior to anus vs at level to seven annuli anterior to anus), and molecularly. The results of phylogenetic analyses based on sequences of D2-D3 expansion region of 28S, ITS-rDNA, 18S rDNA, and the partial cytochrome c oxidase subunit 1 (coxI) mtDNA, confirmed the species differentiation and the close molecular relationship between R. urmiaensis n. sp. and R. striaticeps.

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