Monophyly or polyphyly? Possible conflict between morphological and molecular interpretations of the well-known genus Zoothamnium (Ciliophora, Peritrichia)

Lifang Li; Honggang Ma; Khaled A. S. Al-Rasheid

doi:10.1007/s00343-015-4083-0

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Monophyly or polyphyly? Possible conflict between morphological and molecular interpretations of the well-known genus Zoothamnium (Ciliophora, Peritrichia)

OriginalPaper | Updated：2023-05-16

- Monophyly or polyphyly? Possible conflict between morphological and molecular interpretations of the well-known genus Zoothamnium (Ciliophora, Peritrichia)
- Monophyly or polyphyly? Possible conflict between morphological and molecular interpretations of the well-known genus Zoothamnium (Ciliophora, Peritrichia)
- 海洋湖沼学报（英文） 2015年33卷第2期页码：490-499
- Affiliations：
  
  1. Marine College Shandong University
  2. Institute of Evolution & Marine Biodiversity Ocean University of China
  3. Zoology Department King Saud University
- Author bio：
- Funds：
  
  Supported by the National Natural Science Foundation of China (Nos. 31071898, 31111120437), the Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry of China, the Key Laboratory of Mariculture (KLM), Ministry of Education, Ocean University of China, the Research Group Project (No. RGP-VPP-083), and the King Saud University Deanship of Scientific Research
- DOI：10.1007/s00343-015-4083-0
  中图分类号：
- 网络首发：2014-12-10，
  
  纸质出版：2015
- Accepted：
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Monophyly or polyphyly? Possible conflict between morphological and molecular interpretations of the well-known genus Zoothamnium (Ciliophora, Peritrichia)[J]. 海洋湖沼学报（英文）, 2015,33(2):490-499.

Li, L., Ma, H. & Al-Rasheid, K.A.S. Monophyly or polyphyly? Possible conflict between morphological and molecular interpretations of the well-known genus Zoothamnium (Ciliophora, Peritrichia)., Chin. J. Ocean. Limnol. 33, 490–499 (2015). https://doi.org/10.1007/s00343-015-4083-0
Monophyly or polyphyly? Possible conflict between morphological and molecular interpretations of the well-known genus Zoothamnium (Ciliophora, Peritrichia)[J]. 海洋湖沼学报（英文）, 2015,33(2):490-499. DOI： 10.1007/s00343-015-4083-0.

Li, L., Ma, H. & Al-Rasheid, K.A.S. Monophyly or polyphyly? Possible conflict between morphological and molecular interpretations of the well-known genus Zoothamnium (Ciliophora, Peritrichia)., Chin. J. Ocean. Limnol. 33, 490–499 (2015). https://doi.org/10.1007/s00343-015-4083-0 DOI：

摘要

Abstract

In this paper

we explore possible conflict between morphological and molecular interpretations of phylogenetic relationships within the well-known peritrichous genus Zoothamnium. On the basis of morphological evidence

for a long time this genus has been believed to be a well-defined monophyletic taxon. Nonetheless

Zoothamnium exhibits higher genetic diversity than the gross morphology of its species. Here

we used all available genetic information for the small subunit of ribosomal RNA (SSU rRNA) and internal transcribed spacer region (ITS1-5.8S-ITS2) for this genus to reconstruct phylogenies for four datasets (SSU rRNA

ITS1

ITS2

and ITS1-5.8S-ITS2) and a combined dataset (SSU rRNA+ITS1-5.8SITS2) using different phylogenetic methods and with consideration of the secondary structure of the genes. Confidence in phylogenetic tree selection was assessed with the approximately unbiased test. The molecular results showed both that Zoothamnium is more likely to be polyphyletic

and morphologically similar genera Zoothamnopsis and Myoschiston were always nested among Zoothamnium species. Accordingly

as with some other groups of ciliates

to understand more fully the correct phylogeny of Zoothamnium there remains a need for additional data from both morphological and molecular studies

covering additional Zoothamnium spp. and members of closely related genera (e.g. Zoothamnopsis

Myoschiston

and Epistylis).

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references

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