Bogale Mesfin, Tadesse Betre, Nuaima Rasha Haj, Honermeier Bernd, Hallmann Johannes, DiGennaro Peter
Department of Entomology and Nematology, University of Florida, Gainesville, FL 32611, USA.
Justus Liebig University, Schubertstraße 81, 35392 Gießen, Germany.
Plants (Basel). 2021 Mar 31;10(4):674. doi: 10.3390/plants10040674.
is an economically important root-lesion nematode species that affects agronomic and ornamental plants. Understanding its diversity is of paramount importance to develop effective control and management strategies. This study aimed to characterize the morphological and genetic diversity among seven European isolates. An isolate from the USA was included in the molecular analyses for comparative purposes. Morphometrics of the European isolates generally were within the range of the original descriptions for this species. However, multiple morphometric characteristics, including body length, maximum body width, tail length and length of the post-vulval uterine sac showed discrepancies when compared to other populations. Nucleotide sequence-based analyses revealed a high level of intraspecific diversity among the isolates. We observed no correlation between D2-D3 rDNA- and COXI-based phylogenetic similarities and geographic origin. Our phylogenetic analyses including selected GenBank sequences also suggest that the controversy surrounding the distinction between and remains.
是一种对经济有重要影响的根结线虫物种，会影响农艺植物和观赏植物。了解其多样性对于制定有效的控制和管理策略至关重要。本研究旨在表征七个欧洲分离株的形态和遗传多样性。为了进行比较，分子分析中纳入了一个来自美国的分离株。欧洲分离株的形态测量通常在该物种原始描述的范围内。然而，与其他种群相比，包括体长、最大体宽、尾长和阴门后子宫囊长度在内的多个形态测量特征存在差异。基于核苷酸序列的分析揭示了分离株之间存在高水平的种内多样性。我们观察到基于D2-D3 rDNA和COXI的系统发育相似性与地理起源之间没有相关性。我们包括选定GenBank序列的系统发育分析也表明，围绕[具体物种名称1]和[具体物种名称2]之间区分的争议仍然存在。
