Hosseinvand Manouchehr, Eskandari Ali, Abolafia Joaquín, Ghaderi Reza
Department of Plant Protection, Faculty of Agriculture, University of Zanjan, 45371-38791, Zanjan, Iran.
Departamento de Biología Animal, Biología Vegetal y Ecología, Universidad de Jaén, Campus 'Las Lagunillas' s/n, Edificio B3, 23071 Jaén, Spain.
J Nematol. 2021 Oct 26;53. doi: 10.21307/jofnem-2021-059. eCollection 2021.
Discopersicus n. sp., is described and illustrated from a population associated with the rhizosphere of carrot ( L.) in Dezful, Khuzestan province, south-western Iran. Based on morphological and morphometric data, the new species is characterized by a 601-734 µm long body, a prominent perioral labial disc and oblique amphidial slits, 10-11 µm long stylet, vulva at 65-67% of body length, 15.5-17 µm long spicules, and an elongate conoid tail with a pointed terminus. It is the second species of the genus Discopersicus and differs from its counterpart D. iranicus, by its anterior position of vulva, shorter stylet, lower M.B. ratio, different shape of tail tip, and shorter spicules in male specimens. A molecular phylogenetic analysis using the D2-D3 expansion segments of 28S rDNA sequences, placed the new species in close relationship with five sequences of the genus .
新种Discopersicus被描述并展示，其样本采自伊朗西南部胡齐斯坦省迪兹富尔与胡萝卜（L.）根际相关的群体。基于形态学和形态测量数据，新物种的特征为体长601 - 734 µm，口周唇盘突出，侧器缝倾斜，口针长10 - 11 µm，阴门位于体长的65 - 67%处，交合刺长15.5 - 17 µm，尾部细长呈锥形且末端尖锐。它是Discopersicus属的第二个物种，与同属的伊朗Discopersicus不同，其阴门位置靠前、口针较短、M.B.比率较低、尾尖形状不同，且雄性标本的交合刺较短。使用28S rDNA序列的D2 - D3扩展片段进行的分子系统发育分析表明，新物种与该属的五个序列关系密切。
