Description of Heterodera microulae sp. n. (Nematoda: Heteroderinae) from China - a new cyst nematode in the Goettingiana group
文献类型： 外文期刊
第一作者： Li, Wenhao
作者： Li, Wenhao;Li, Huixia;Ni, Chunhui;Luo, Ning;Xu, Xuefen;Peng, Deliang;Liu, Yonggang
作者机构：
关键词： Goettingiana group; Heterodera; Morphology; New species; Phylogeny; Taxonomy
期刊名称：JOURNAL OF NEMATOLOGY （ 影响因子：1.402； 五年影响因子：2.012 ）
ISSN： 0022-300X
年卷期： 2020 年 52 卷
页码：
收录情况： SCI
摘要： A new cyst-forming nematode, Heterodera microulae sp. n., was isolated from the roots and rhizosphere soil of Microula sikkimensis in China. Morphologically, the new species is characterized by lemon-shaped body with an extruded neck and obtuse vulval cone. The vulval cone of the new species appeared to be ambifenestrate without bullae and a weak underbridge. The second-stage juveniles have a longer body length with four lateral lines, strong stylets with rounded and flat stylet knobs, tail with a comparatively longer hyaline area, and a sharp terminus. The phylogenetic analyses based on ITS-rDNA, D2-D3 of 28S rDNA, and COI sequences revealed that the new species formed a separate Glade from other Heterodera species in Goettingiana group, which further support the unique status of H. microulae sp. n. Therefore, it is described herein as a new species of genus Heterodera; additionally, the present study provided the first record of Goettingiana group in Gansu Province, China.
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