Qu Zhishuai, Pan Hongbo, Lin Xiaofeng, Li Lifang, Aleidan Abdullah Mohammad A, Al-Farraj Saleh A, Stoeck Thorsten, Hu Xiaozhong
Institute of Evolution & Marine Biodiversity, Ocean University of China, Qingdao, 266003, China.
Department of Ecology, University of Kaiserslautern, Kaiserslautern, 67663, Germany.
J Eukaryot Microbiol. 2018 Mar;65(2):236-249. doi: 10.1111/jeu.12472. Epub 2017 Sep 25.
Three new cyrtophorian ciliates isolated from coastal areas of China were described based on morphological and genetic data. The Chlamydodon mnemosyne-like species Chlamydodon similis sp. n. differs from its congeners mainly by its number of somatic kineties. Chlamydodon oligochaetus sp. n. is distinguished from its congeners mainly by having fewer somatic kineties, and/or an elongated body shape. Chlamydodon crassidens sp. n. is characterized mainly by an inverted triangular body shape, a posteriorly interrupted cross-striated band (5-6 μm wide), and a large cytostome. Moreover, we provided small-subunit (SSU) rDNA sequences of C. similis sp. n. and C. oligochaetus sp. n. Maximum likelihood (ML) and Bayesian inference (BI) consistently placed C. similis sp. n. as a sister to C. paramnemosyne, but showed different branching position of C. oligochaetus sp. n., which may be due to a low taxon sampling in the Chlamydodontidae and/or an insufficient resolution of the marker gene at species level.
基于形态学和遗传学数据，对从中国沿海地区分离出的三种新的篮管类纤毛虫进行了描述。类记忆篮管虫（Chlamydodon mnemosyne-like）物种相似篮管虫（Chlamydodon similis sp. n.）与其同属物种的主要区别在于其体动基列的数量。寡毛篮管虫（Chlamydodon oligochaetus sp. n.）与其同属物种的主要区别在于其体动基列较少，和/或身体形状细长。厚齿篮管虫（Chlamydodon crassidens sp. n.）的主要特征是倒三角形的身体形状、后部中断的横纹带（宽5-6μm）和一个大的胞口。此外，我们提供了相似篮管虫和寡毛篮管虫的小亚基（SSU）rDNA序列。最大似然法（ML）和贝叶斯推断（BI）一致将相似篮管虫置于副记忆篮管虫（C. paramnemosyne）的姐妹位置，但寡毛篮管虫显示出不同的分支位置，这可能是由于篮管科中分类单元采样较少和/或标记基因在物种水平上分辨率不足所致。
