Journal ArticleDOI
Molecular and morphological characterization of a poorly known marine ciliate, Myoschiston duplicatum precht 1935: implications for phylogenetic relationships between three morphologically similar genera -- Zoothamnium, Myoschiston, and Zoothamnopsis (Ciliophora, Peritrichia, Zoothamniidae).
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TLDR
The morphology and molecular phylogeny of Myoschiston duplicatum, a peritrich ciliate that has been recorded as an epibiont of crustaceans, but which is also identified on marine algae from Korea, is studied to provide an improved diagnosis and phylogenetic relationship in the family Zoothamniidae between the three morphologically similar genera.Abstract:
We studied the morphology and molecular phylogeny of Myoschiston duplicatum, a peritrich ciliate that has been recorded as an epibiont of crustaceans, but which we also identified on marine algae from Korea. The important morphological characteristics revealed by silver staining of Myoschiston species have not been described because they are rarely collected. Using morphological methods, we redescribed the type species of the genus, Myoschiston duplicatum, and provided an improved diagnosis of Myoschiston. In addition, the coding regions for nuclear small subunit (SSU) rRNA and internal transcribed spacer 1-5.8S-internal transcribed spacer 2 sequences were sequenced. Phylogenetic analyses that included available SSU rDNA sequences of peritrichs from GenBank strongly supported a position of M. duplicatum within the family Zoothamniidae. In addition, phylogenetic analyses were performed with single datasets (ITS1-5.8S-ITS2) and combined datasets (SSU rDNA + ITS1-5.8S-ITS2) to explore further the phylogenetic relationship in the family Zoothamniidae between the three morphologically similar genera-Zoothamnium, Myoschiston, and Zoothamnopsis.read more
Citations
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An integrative approach to phylogeny reveals patterns of environmental distribution and novel evolutionary relationships in a major group of ciliates
TL;DR: Reconstruction of ancestral states revealed that peritrichs may have transitioned repeatedly from freshwater to brackish/marine/hypersaline environments and provided a model of how to elucidate evolution in the context of ecological niches in any lineage of microbial eukaryotes.
Journal ArticleDOI
Insights into the origin and evolution of Peritrichia (Oligohymenophorea, Ciliophora) based on analyses of morphology and phylogenomics
Chuanqi Jiang,Guangying Wang,Jie Xiong,Wentao Yang,Zong-Yi Sun,Jin-Mei Feng,Alan Warren,Wei Miao +7 more
TL;DR: Evidence that spasmin is an important molecule to illustrate the phylogenetic position of Peritrichia within the class Oligohymenophorea, the monophyly of Per itrichia, and the diverse and rapid evolution of sessilid peritrichs is provided.
Journal ArticleDOI
Description of a New Freshwater Ciliate Epistylis wuhanensis n. sp. (Ciliophora, Peritrichia) from China, with a Focus on Phylogenetic Relationships within Family Epistylididae.
TL;DR: The morphological characteristics and molecular analyses support that the present Epistylis wuhanensis is a new species and expand phylogenetic analyses of sessilids based on both SSU rRNA gene sequences and ITS1‐5.8S‐ITS2 sequences reveal that the genus Epistsylis consists of Epistolis morphospecies and taxonomic revision of the genus is needed.
Journal ArticleDOI
Phylogeny of the families Zoothamniidae and Epistylididae (Protozoa: Ciliophora: Peritrichia) based on analyses of three rRNA-coding regions.
TL;DR: Intrafamilial phylogeny of some peritrichs was investigated using information from three genes, which provided more robust interpretations than single-gene analyses, and evolutionary hypotheses can be inferred.
Journal ArticleDOI
Two New Species of Zoothamnium (Ciliophora, Peritrichia) from Korea, with New Observations of Z. parahentscheli Sun et al., 2009.
TL;DR: Phylogenetic analysis revealed that the three Zoothamnium species described in this paper clustered with other members of the family Zoothamniidae, as expected.
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