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来自韩国的两种新的颈叶目纤毛虫的形态学与分子系统发育研究，新属，新种和新种（膜口目，触毛亚目）

Morphology and Molecular Phylogeny of Two New Trachelophyllid Ciliates, gen. nov., sp. nov. and sp. nov. (Litostomatea, Haptoria), From South Korea.

作者信息

Omar Atef, Moon Ji Hye, Jung Jae-Ho

机构信息

Natural Science Research Institute, Gangneung-Wonju National University, Gangneung, South Korea.

Department of Zoology, Al Azhar University, Assiut, Egypt.

出版信息

Front Microbiol. 2022 Jun 6;13:893886. doi: 10.3389/fmicb.2022.893886. eCollection 2022.

DOI:10.3389/fmicb.2022.893886
PMID:35733971
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9207515/
Abstract

The morphology and molecular phylogeny of two new ciliates, gen. nov., sp. nov. and sp. nov., discovered in South Korea, were investigated. The two species belong to the suborder Trachelophyllina, which is characterized by the presence of a mucilaginous layer containing lepidosomes covering the cortex. gen. nov., sp. nov. is characterized by the presence of a single layer of type II lepidosomes, representing a new genus. sp. nov. has only type I lepidosomes covering the cortex, a generic character of the genus , and is distinguished from other congeners by a combination of morphological features, including the 15-24 μm long rod-shaped extrusomes, the 9-13 ciliary rows, the 7-11 and 17-25 dikinetids in brush rows 1 and 2, respectively, and the bipolar brush row 3. Furthermore, the 18S rRNA gene sequences of the two new species were provided. The phylogenetic analyses show that the sequence of gen. nov., sp. nov. clusters with two other trachelophyllid sequences, and the sequence of sp. nov. is placed at the base of these three sequences with full support. Furthermore, the four trachelophyllid sequences that are available so far form a monophyletic clade.

摘要

对在韩国发现的两种新纤毛虫，即新属新种和新种的形态学及分子系统发育进行了研究。这两个物种属于Trachelophyllina亚目，其特征是皮层覆盖着一层含有鳞片体的黏液层。新属新种的特征是存在单层II型鳞片体，代表一个新属。新种的皮层仅覆盖有I型鳞片体，这是该属的一个共同特征，并且通过包括15 - 24μm长的杆状射出体、9 - 13排纤毛、第1排和第2排刷状列中分别有7 - 11个和17 - 25个双动基体以及双极刷状列3在内的形态特征组合，与其他同属物种相区分。此外，还提供了这两个新物种的18S rRNA基因序列。系统发育分析表明，新属新种的序列与其他两个Trachelophyllina序列聚类，新种的序列在完全支持下位于这三个序列的基部。此外，目前可用的四个Trachelophyllina序列形成一个单系类群。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/edb0/9207515/fbc629a6369d/fmicb-13-893886-g0008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/edb0/9207515/b7ff3a5dbd0f/fmicb-13-893886-g0001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/edb0/9207515/4f63768686cc/fmicb-13-893886-g0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/edb0/9207515/764fcd61c1e7/fmicb-13-893886-g0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/edb0/9207515/351a1bbdb127/fmicb-13-893886-g0004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/edb0/9207515/0272229a8fe0/fmicb-13-893886-g0005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/edb0/9207515/fe315e54984c/fmicb-13-893886-g0006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/edb0/9207515/4011c1b6987e/fmicb-13-893886-g0007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/edb0/9207515/fbc629a6369d/fmicb-13-893886-g0008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/edb0/9207515/b7ff3a5dbd0f/fmicb-13-893886-g0001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/edb0/9207515/4f63768686cc/fmicb-13-893886-g0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/edb0/9207515/764fcd61c1e7/fmicb-13-893886-g0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/edb0/9207515/351a1bbdb127/fmicb-13-893886-g0004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/edb0/9207515/0272229a8fe0/fmicb-13-893886-g0005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/edb0/9207515/fe315e54984c/fmicb-13-893886-g0006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/edb0/9207515/4011c1b6987e/fmicb-13-893886-g0007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/edb0/9207515/fbc629a6369d/fmicb-13-893886-g0008.jpg

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