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Molecular and morphological characterisations of two new species of Rotylenchus (Nematoda: Hoplolaimidae) from Iran

AutorReza Atighi, Mohammad; Pourjam, Ebrahim; Pedram, Majid; Cantalapiedra-Navarrete, C. ; Palomares Rius, Juan E. ; Castillo, Pablo
Palabras claveD2-D3
Molecular
Morphology
Morphometrics
Oriental Beech tree
Phylogeny
Rotylenchus Conicaudatus N. SP
Rotylenchus Iranicus N. SP
Spiral nematodes
Taxonomy
Fecha de publicación2011
EditorBrill Academic Publishers
CitaciónNematology 13(8): 951-964 (2011)
ResumenTwo new amphimictic species, Rotylenchus iranicus n. sp. and R. conicaudatus n. sp., are described. Rotylenchus iranicus n. sp. is characterised mainly by an offset hemispherical lip region with 5-6, rarely 7, annuli, stylet 39-44 μm long, vulva located at 53-65% and rounded tail with 4-9 annuli and typical smooth tip. Morphologically this species is related to R. montanus, R. provincialis and R. aqualamus. Rotylenchus conicaudatus n. sp. is characterised mainly by a slightly offset conoid-rounded lip region with four or five, rarely six annuli, stylet 27-32 μm long, vulva located at 52-63% and conoid-rounded tail with 10-16 annuli and a typical annulated tip. Morphologically this species is related to R. pumilus, R. abnormecaudatus, R. acuspicaudatus and R. provincialis. The results of the phylogenetic analysis based on sequences of the D2-D3 expansion regions of 28S and ITS1-rRNA genes confirmed the species differentiation. Phylogenetic relationships with other species were difficult to assign using D2-D3 expansion regions of 28S. However, using ITS1-rRNA, R. conicaudatus n. sp. presented a close relationship with R. unisexus, whilst R. iranicus n. sp. was closely related to R. conicaudatus n. sp., R. unisexus, R. incultus and R. laurentinus.
Versión del editorhttp://dx.doi.org/10.1163/138855411X571795
URIhttp://hdl.handle.net/10261/89926
DOI10.1163/138855411X571795
Identificadoresdoi: 10.1163/138855411X571795
issn: 1388-5545
e-issn: 1568-5411
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