Álvarez-Ortega Sergio
Departamento de Biología y Geología, Física y Química Inorgánica, Universidad Rey Juan Carlos, Campus de Móstoles, 28933 Madrid, Spain.
Animals (Basel). 2020 Dec 4;10(12):2300. doi: 10.3390/ani10122300.
This paper deals with the morphological and molecular characterization of Baqri and Bohra, 2001, with an integrative approach. The finding of in California is a remarkable biogeographical novelty, as it is the first American record of the species. Molecular data herein obtained represent the first molecular study of the genus . Furthermore, scanning electron microscopy (SEM) observations of a member of are provided for the first time. Additionally, this contribution provides new insights into the phylogeny and taxonomy of the nematode genus . A brief historical outline of the matter is presented. Then, the morphological pattern of the genus is revised and illustrated, the anterior position of amphids, whose opening is located on lateral lip, being its most relevant diagnostic feature. The phylogenetic analysis inferred from D2-D3 expansion segments of 28S rRNA gene shows that clustered together with other dorylaimid species characterized by the absence of and that it does not share a recent common ancestor with other members of the family Nordiidae. A likely polyphyly of the family Nordiidae is confirmed. Finally, an updated taxonomy of the genus is proposed, including a revised diagnosis, a list of species, a key to species identification, and a compendium of their main morphometrics and distribution data.
本文采用综合方法对2001年的巴克里（Baqri）和博拉（Bohra）进行了形态学和分子特征分析。在加利福尼亚发现该物种是一个显著的生物地理学新发现，因为这是该物种在美国的首次记录。本文获得的分子数据代表了对该属的首次分子研究。此外，首次提供了对该属一个成员的扫描电子显微镜（SEM）观察结果。此外，本研究为线虫属的系统发育和分类学提供了新的见解。文中介绍了该问题的简要历史概况。然后，对该属的形态模式进行了修订和说明，其中最相关的诊断特征是位于侧唇上的化感器开口的前部位置。从28S rRNA基因的D2-D3扩增片段推断的系统发育分析表明，该物种与其他以缺乏[具体结构或特征未提及]为特征的矛线目物种聚集在一起，并且它与诺氏科的其他成员没有最近的共同祖先。诺氏科可能的多系性得到了证实。最后，提出了该属的更新分类，包括修订后的诊断、物种列表、物种鉴定关键以及它们主要形态测量和分布数据的纲要。
