Azimi Sedighe, Abolafia Joaquín, Pedram Majid
Department of Plant Protection, Faculty of Agriculture, Shahid Chamran University of Ahvaz, Ahvaz, Iran.
Departamento de Biología Animal, Biología Vegetal y Ecología, Universidad de Jaén, Campus de las Lagunillas, Avenida de Ben Saprut s/n. 23071-Jaén, Spain.
J Nematol. 2021 Feb 2;52. doi: 10.21307/jofnem-2020-128. eCollection 2020.
n. sp., recovered from the rhizospheric soil of date palm in Khuzestan province, southwest Iran, is described and illustrated based upon morphological, morphometric and molecular data. The new species is characterized by its sheath, closely fitting most of the body, cuticle with or without numerous irregular lines, sometimes appearing as blocks in distal body region. Lateral field without discrete longitudinal lines, but often with continuous broken striae or anastomoses. Continuous lip region with single annulus, slightly elevated labial disc, stylet with posteriorly sloping knobs. Vulva with or without slightly modified lips, spermatheca with sperm and tail conoid, symmetrically narrowing at distal region to form a narrow conical region. Morphologically, the new species looks similar to , , , and . The latter species appears more similar to the new species under light microscopy, but could be separated using the scanning electron microscopy and molecular data. The new species was also compared with and , two species with close phylogenetic affinities to it. The phylogenetic relationships of the new species were reconstructed and discussed using partial sequences of the D2-D3 expansion segments of large subunit, and internal transcribed spacer regions (LSU D2-D3 and ITS rDNA). , the second studied species, was recovered from north Iran and characterized by morphological and molecular data.
本文基于形态学、形态测量学和分子数据，对从伊朗西南部胡齐斯坦省枣椰树根际土壤中分离得到的一个新种进行了描述和图示。该新种的特征在于其鞘紧密贴合虫体大部分，角质层有或无许多不规则线纹，有时在虫体远端区域呈块状。侧区无离散纵线，但常有连续的间断条纹或吻合线。唇区连续，有单个环纹，唇盘略隆起，口针后端有倾斜的瘤。阴门有或无稍经修饰的唇，受精囊有精子，尾呈锥形，在远端区域对称变窄形成狭窄的锥形区域。形态上，该新种与[具体物种1]、[具体物种2]、[具体物种3]、[具体物种4]和[具体物种5]相似。后几个物种在光学显微镜下与新种更相似，但可通过扫描电子显微镜和分子数据进行区分。新种还与[具体物种6]和[具体物种7]进行了比较，这两个物种与其有密切的系统发育亲缘关系。利用大亚基D2 - D3扩展片段和内部转录间隔区（LSU D2 - D3和ITS rDNA）的部分序列重建并讨论了新种的系统发育关系。第二个研究物种[具体物种8]从伊朗北部分离得到，并通过形态学和分子数据进行了表征。
