Gu Jianfeng, Fang Yiwu, Ma Xinxin, Shao Baolin, Zhuo Kan
Ningbo Key Laboratory of Port Biological and Food Safety Testing, Ningbo Customs Technology Center (Ningbo Inspection and Quarantine Science Technology Academy), Ningbo, Zhejiang 315100, P.R. China.
Ningbo Zhongsheng Product Testing Co., Ltd, Ningbo, Zhejiang 315100, P.R. China.
J Nematol. 2023 Apr 19;55(1):20220036. doi: 10.2478/jofnem-2022-0036. eCollection 2023 Feb.
n. sp. was detected from Japanese maple trees () from Chiba, Japan during quarantine inspections in China. This species is characterized by second-stage juveniles (J2) with short tail length 32.2 (24-36.8) μm, finely rounded to broadly pointed tail terminus with extremely short hyaline tail terminus 4.3 (3.0-4.9) μm; perineal patterns of females characterized by an oval or irregular appearance, with round and low dorsal arch, and fine and smooth striae. n. sp. is very similar to in that the perineal pattern has fine, smooth striae and both J2 have a short tail, but it can be distinguished from the latter by perineal pattern of the female (lateral field distinct . indistinct), shorter J2 hyaline tail terminus (4.3 [3.0-4.9] μm . 8.2 [4.8-12.7] μm, and by J2 tail with finely rounded to broadly pointed tail terminus, never sharply pointed . finely rounded and almost pointed. The polytomous key codes of the new species are as follows: : A21, B2, C32, D4; : A21, B3, C2, D1, E2, F2; : A2, B23, C43, D34, E12, F34. Detailed phylogenetic analysis based on partial 18S, ITS, D2-D3 28S, and partial mtCOI sequences also confirmed it as a new species, which is very close to and and forms molecular group VIII. and other species detected from plants from Japan in China are also discussed.
在中国的检疫检查期间,从日本千叶的日本枫树()中检测到一种新种线虫。该物种的特征为:二期幼虫(J2)尾长较短,为32.2(24 - 36.8)μm,尾端从微圆到宽尖,透明尾端极短,为4.3(3.0 - 4.9)μm;雌虫会阴花纹呈椭圆形或不规则形,背弓圆且低,条纹细而平滑。该新种线虫与 非常相似,因为两者的会阴花纹都有细而平滑的条纹,且J2的尾巴都很短,但可以通过雌虫的会阴花纹(侧区明显. 不明显)、较短的J2透明尾端(4.3 [3.0 - 4.9]μm. 8.2 [4.8 - 12.7]μm)以及J2尾巴从微圆到宽尖、从不尖锐. 微圆且几乎尖锐来区分。新物种的多歧检索表编码如下:: A21, B2, C32, D4; : A21, B3, C2, D1, E2, F2; : A2, B23, C43, D34, E12, F34。基于部分18S、ITS、D2 - D3 28S和部分mtCOI序列的详细系统发育分析也证实它是一个新物种,该物种与 和 非常接近,形成分子类群VIII。还讨论了在中国从日本植物中检测到的 和其他 物种。