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Additional data on Iranian trichodorids (Triplonchida: Trichodoridae) and proposal for a new synonymy

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Molecular data on several species of trichodorids occurring in Iran are provided. Live specimens of two species, Trichodorus arasbaranensisand T. gilanensis, were collected from their type localities. One population of T. orientaliswas collected from Arasbaran forests in Eastern Azarbayjan province. The species Paratrichodorus porosus, occurring in Gilan province, and one European isolate of P. pachydermuswere also included in phylogenetic analysis. An Iranian population of T. minzi, representing only the second population found of this rare species, was recovered from soil samples collected from grasslands of north-western Iran and is in morphological congruence with the original description of the species. Besides morphological study, molecular phylogenetic study was performed on newly reported species using partial 28S rDNA data, and the phylogenetic relations of all sequenced species as inferred from Bayesian analysis are discussed. According to the phylogenetic tree, two newly described species, T. golestanensisand T. iranicus, formed a clade and further studies revealed they have the same morphology and molecular sequences of 28S rDNA D2-D3. Accordingly, T. golestanensisis regarded as a junior synonym of T. iranicusaccording to the Principle of Priority.

Affiliations: 1: 1Department of Plant Pathology, Faculty of Agriculture, Tarbiat Modares University, Tehran, Iran; 2: 2Department of Animal Science, Faculty of Agriculture, Tarbiat Modares University, Tehran, Iran


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