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Eur J Protistol. 2017 Oct;61(Pt A):180-193. doi: 10.1016/j.ejop.2017.08.003. Epub 2017 Sep 6.

Morphogenesis of a saline soil ciliate Urosoma salmastra (Dragesco and Dragesco-Kernéis, 1986) Berger, 1999 with notes on the phylogeny of Urosoma (Ciliophora, Hypotrichia).

Author information

1
The Key Laboratory of Biomedical Information Engineering, Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China.
2
College of Life Science, Northwest Normal University, Lanzhou 730070, China.
3
Department of Life Sciences, Natural History Museum, London SW7 5BD, UK.
4
Savaid Medical School, University of Chinese Academy of Sciences, Beijing 100049, China.
5
The Key Laboratory of Biomedical Information Engineering, Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China. Electronic address: andrews1201@hotmail.com.

Abstract

Morphogenesis in a population of Urosoma salmastra collected from saline soil in Weinan, China, was investigated using protargol staining. The main morphogenetic event that characterizes U. salmastra is the inclusion of cirrus III/2 in the formation of the frontoventra-transverse cirral anlagen. We also provide small subunit ribosomal DNA gene sequences for a population of U. salmastra and for two populations of U. emarginata. The molecular phylogeny indicates that Urosoma is not monophyletic, viz, U. emarginata branches separately from its congeners and the closest relative of U. salmastra is Oxytricha granulifera.

KEYWORDS:

Hypotrichia; Molecular phylogeny; Morphogenesis; Oxytrichidae; Urosoma

PMID:
29078171
DOI:
10.1016/j.ejop.2017.08.003
[Indexed for MEDLINE]

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