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Characterization of a Pseudokeronopsis Strain (Ciliophora, Urostylida) and Its Bacterial Endosymbiont “Candidatus Trichorickettsia” (Alphaproteobacteria, Rickettsiales). DIVERSITY 2022. [DOI: 10.3390/d14121032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Symbiotic associations between bacteria and ciliate protists are rather common. In particular, several cases were reported involving bacteria of the alphaproteobacterial lineage Rickettsiales, but the diversity, features, and interactions in these associations are still poorly understood. In this work, we characterized a novel ciliate protist strain originating from Brazil and its associated Rickettsiales endosymbiont by means of live and ultrastructural observations, as well as molecular phylogeny. Though with few morphological peculiarities, the ciliate was found to be phylogenetically affiliated with Pseudokeronopsis erythrina, a euryhaline species, which is consistent with its origin from a lagoon with significant spatial and seasonal salinity variations. The bacterial symbiont was assigned to “Candidatus Trichorickettsia mobilis subsp. hyperinfectiva”, being the first documented case of a Rickettsiales associated with urostylid ciliates. It resided in the host cytoplasm and bore flagella, similarly to many, but not all, conspecifics in other host species. These findings highlight the ability of “Candidatus Trichorickettsia” to infect multiple distinct host species and underline the importance of further studies on this system, in particular on flagella and their regulation, from a functional and also an evolutionary perspective, considering the phylogenetic proximity with the well-studied and non-flagellated Rickettsia.
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Zhang T, Shao C, Zhang T, Song W, Vd’ačný P, Al-Farraj SA, Wang Y. Multi-Gene Phylogeny of the Ciliate Genus Trachelostyla (Ciliophora, Hypotrichia), With Integrative Description of Two Species, Trachelostyla multinucleata Spec. nov. and T. pediculiformis (Cohn, 1866). Front Microbiol 2022; 12:775570. [PMID: 35178037 PMCID: PMC8844511 DOI: 10.3389/fmicb.2021.775570] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Accepted: 11/25/2021] [Indexed: 11/13/2022] Open
Abstract
Many hypotrich genera, including Trachelostyla, are taxonomically challenging and in a need of integrative revision. Using morphological data, molecular phylogenetic analyses, and internal transcribed spacer 2 (ITS2) secondary structures, we attempt to cast more light on species relationships within the genus Trachelostyla. The present multifaceted approach reveals that (1) a large-sized species with numerous macronuclear nodules, isolated from sandy littoral sediments in southern China, is new to science and is endowed here with a name, T. multinucleata spec. nov.; (2) two other Chinese populations previously identified as T. pediculiformis represent undescribed species; and (3) multigene phylogeny is more robust than single-gene trees, recovering the monophyly of the genus Trachelostyla with high bootstrap frequency. Additionally, ITS2 secondary structures and the presence of compensatory base changes in helices A and B indicate the presence of four distinct taxa within the molecularly studied members of the genus Trachelostyla. Molecular data are more suitable for delimitation of Trachelostyla species than morphological characters as interspecific pairwise genetic distances of small subunit (18S) rDNA, ITS1-5.8S-ITS2, and large subunit (28S) rDNA sequences do not overlap, whereas ranges of multiple morphometric features might transcend species boundaries.
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Affiliation(s)
- Tengyue Zhang
- Laboratory of Protozoological Biodiversity and Evolution in Wetland, College of Life Sciences, Shaanxi Normal University, Xi’an, China
- Institute of Evolution and Marine Biodiversity, Ocean University of China, Qingdao, China
- Department of Zoology, Comenius University in Bratislava, Bratislava, Slovakia
| | - Chen Shao
- Laboratory of Protozoological Biodiversity and Evolution in Wetland, College of Life Sciences, Shaanxi Normal University, Xi’an, China
| | - Tengteng Zhang
- Institute of Evolution and Marine Biodiversity, Ocean University of China, Qingdao, China
| | - Weibo Song
- Laboratory of Protozoological Biodiversity and Evolution in Wetland, College of Life Sciences, Shaanxi Normal University, Xi’an, China
- Institute of Evolution and Marine Biodiversity, Ocean University of China, Qingdao, China
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Peter Vd’ačný
- Department of Zoology, Comenius University in Bratislava, Bratislava, Slovakia
| | - Saleh A. Al-Farraj
- Zoology Department, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Yurui Wang
- Laboratory of Protozoological Biodiversity and Evolution in Wetland, College of Life Sciences, Shaanxi Normal University, Xi’an, China
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Pecina L, Vďačný P. DNA barcoding and coalescent-based delimitation of endosymbiotic clevelandellid ciliates (Ciliophora: Clevelandellida): a shift to molecular taxonomy in the inventory of ciliate diversity in panesthiine cockroaches. Zool J Linn Soc 2021. [DOI: 10.1093/zoolinnean/zlab063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
Phylogenetically distinct lineages may be hidden behind identical or highly similar morphologies. The phenomenon of morphological crypticity has been recently detected in symbiotic ciliates of the family Clevelandellidae, as multivariate and Fourier shape analyses failed to distinguish genetically distinct taxa. To address the question of species boundaries, the phylogenetic information contained in the rDNA cistron of clevelandellid ciliates, which had been isolated from the digestive tract of blaberid cockroaches, was studied using a multifaceted statistical approach. Multigene phylogenies revealed that the genus Clevelandella is paraphyletic containing members of the genus Paraclevelandia. To resolve the paraphyly of Clevelandella, two new genera, Anteclevelandella gen. nov. and Rhynchoclevelandella gen. nov., are proposed based on morphological synapomorphies and shared molecular characters. Multigene analyses and Bayesian species delimitation supported the existence of 13 distinct species within the family Clevelandellidae, eight of which represent new taxa. Moreover, two new Nyctotherus species were recognized within the clade that is sister to the Clevelandellidae. According to the present distance and network analyses, the first two domains of the 28S rRNA gene showed much higher power for species discrimination than the 18S rRNA gene and ITS region. Therefore, the former molecular marker was proposed to be a suitable group-specific barcode for the family Clevelandellidae.
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Affiliation(s)
- Lukáš Pecina
- Department of Zoology, Faculty of Natural Sciences, Comenius University in Bratislava, 842 15 Bratislava, Slovakia
| | - Peter Vďačný
- Department of Zoology, Faculty of Natural Sciences, Comenius University in Bratislava, 842 15 Bratislava, Slovakia
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Flöder S, Yong J, Klauschies T, Gaedke U, Poprick T, Brinkhoff T, Moorthi S. Intraspecific trait variation alters the outcome of competition in freshwater ciliates. Ecol Evol 2021; 11:10225-10243. [PMID: 34367571 PMCID: PMC8328434 DOI: 10.1002/ece3.7828] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Accepted: 06/04/2021] [Indexed: 11/18/2022] Open
Abstract
Trait variation among heterospecific and conspecific organisms may substantially affect community and food web dynamics. While the relevance of competition and feeding traits have been widely studied for different consumer species, studies on intraspecific differences are more scarce, partly owing to difficulties in distinguishing different clones of the same species. Here, we investigate how intraspecific trait variation affects the competition between the freshwater ciliates Euplotes octocarinatus and Coleps hirtus in a nitrogen-limited chemostat system. The ciliates competed for the microalgae Cryptomonas sp. (Cry) and Navicula pelliculosa (Nav), and the bacteria present in the cultures over a period of 33 days. We used monoclonal Euplotes and three different Coleps clones (Col 1, Col 2, and Col 3) in the experiment that could be distinguished by a newly developed rDNA-based molecular assay based on the internal transcribed spacer (ITS) regions. While Euplotes feeds on Cry and on bacteria, the Coleps clones cannot survive on bacteria alone but feed on both Cry and Nav with clone-specific rates. Experimental treatments comprised two-species mixtures of Euplotes and one or all of the three different Coleps clones, respectively. We found intraspecific variation in the traits "selectivity" and "maximum ingestion rate" for the different algae to significantly affect the competitive outcome between the two ciliate species. As Nav quickly escaped top-down control and likely reached a state of low food quality, ciliate competition was strongly determined by the preference of different Coleps clones for Cry as opposed to feeding on Nav. In addition, the ability of Euplotes to use bacteria as an alternative food source strengthened its persistence once Cry was depleted. Hence, trait variation at both trophic levels codetermined the population dynamics and the outcome of species competition.
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Affiliation(s)
- Sabine Flöder
- Institute for Chemistry and Biology of the Marine Environment (ICBM)University of OldenburgWilhelmshavenGermany
| | - Joanne Yong
- Institute for Chemistry and Biology of the Marine Environment (ICBM)University of OldenburgWilhelmshavenGermany
| | - Toni Klauschies
- Ecology and Ecosystem ModellingUniversity of PotsdamPotsdamGermany
| | - Ursula Gaedke
- Ecology and Ecosystem ModellingUniversity of PotsdamPotsdamGermany
| | - Tobias Poprick
- Institute for Chemistry and Biology of the Marine Environment (ICBM)University of OldenburgWilhelmshavenGermany
| | - Thorsten Brinkhoff
- Institute for Chemistry and Biology of the Marine Environment (ICBM)University of OldenburgWilhelmshavenGermany
| | - Stefanie Moorthi
- Institute for Chemistry and Biology of the Marine Environment (ICBM)University of OldenburgWilhelmshavenGermany
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Rataj M, Vd'ačný P. Cryptic host-driven speciation of mobilid ciliates epibiotic on freshwater planarians. Mol Phylogenet Evol 2021; 161:107174. [PMID: 33831547 DOI: 10.1016/j.ympev.2021.107174] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 03/28/2021] [Accepted: 03/30/2021] [Indexed: 01/18/2023]
Abstract
Mobilids are among the most taxonomically diverse but morphologically uniform groups of epibiotic ciliates. They attach to their hosts by means of an adhesive disc as harmless commensals such as Urceolaria, or as parasites causing significant economic loss such as some Trichodina species. We investigated the diversity, species boundaries, and phylogenetic relationships of mobilids associated with freshwater planarians, using 114 new sequences of two mitochondrial (16S rRNA gene and cytochrome c oxidase gene) and five nuclear (18S rRNA gene, ITS1-5.8S-ITS2 region, D1/D2 domains of 28S rRNA gene) markers. Although the morphological disparity of the isolated trichodinids and urceolariids was low, Bayesian coalescent analyses revealed the existence of five distinct evolutionary lineages/species given the seven molecular markers. The occurrence of mobilids perfectly correlated with their planarian hosts: Trichodina steinii and two Urceolaria mitra-like taxa were associated exclusively with the planarian Dugesia gonocephala, Trichodina polycelis sp. n. with the planarian Polycelis felina, and Trichodina schmidtea sp. n. with the planarian Schmidtea polychroa. Host organisms thus very likely constitute sharply isolated niches that might permit speciation of their epibiotic ciliates, even though no distinct morphological features appear to be recognizable among ciliates originating from different hosts.
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Affiliation(s)
- Matej Rataj
- Department of Zoology, Comenius University in Bratislava, 842 15 Bratislava, Slovak Republic
| | - Peter Vd'ačný
- Department of Zoology, Comenius University in Bratislava, 842 15 Bratislava, Slovak Republic.
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Chen L, Liu Y, Long Y, Lyu J, Feng C, Ning Y, Yi Z. Morphology and molecular phylogeny of two new soil ciliates, Hemiurosomoida warreni nov. spec. and Hemiurosoma clampi nov. spec. (Ciliophora, Hypotrichia) from Tibet. Eur J Protistol 2020; 77:125746. [PMID: 33276198 DOI: 10.1016/j.ejop.2020.125746] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 10/13/2020] [Accepted: 10/26/2020] [Indexed: 10/23/2022]
Abstract
Two novel hypotrichous ciliates, Hemiurosomoida warreni nov. spec. and Hemiurosoma clampi nov. spec., isolated from soil in the Lhalu Wetland and Motuo Virgin Forest in Tibet, respectively, were investigated using live observation and protargol staining. Hemiurosomoida warreni nov. spec. strongly resembles the type species H. longa but can be distinguished by its body size in vivo (110-145 × 30-40 μm vs. 50-100 × 18-40 μm), number of adoral membranelles (25-38 vs. 15-22), and numbers of right (29-39 vs. 14-23) and left (26-35 vs. 13-23) marginal cirri, transverse cirri (3 vs. 4 or 5) and macronuclear nodules (4-8 vs. 2). Hemiurosoma clampi nov. spec. is characterized by its vermiform body shape, colourless cortical granules distributed in irregular rows, two macronuclear nodules, three frontal cirri, one buccal cirrus, four frontoventral cirri ranged in a line, two transverse cirri, lacking postoral ventral and pretransverse ventral cirri, and marginal rows that are not posteriorly confluent. Phylogenetic analyses based on SSU rDNA gene sequences suggest that Hemiurosomoida is not monophyletic. A close relationship is revealed between Hemiurosomoida warreni nov. spec., Parakahilella macrostoma, Hemiurosoma clampi nov. spec., and the type species Hemiurosoma terricola. As expected, all these species are classified within the "non-oxytrichid Dorsomarginalia".
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Affiliation(s)
- Lingyun Chen
- Laboratory of Microbiota, College of Life Science, Northwest Normal University, Lanzhou 730070, China
| | - Yongqiang Liu
- Institute of Evolution & Marine Biodiversity, Ocean University of China, Qingdao 266003, China; College of Fisheries, Ocean University of China, Qingdao 266003, China
| | - Yongli Long
- Laboratory of Microbiota, College of Life Science, Northwest Normal University, Lanzhou 730070, China
| | - Jing Lyu
- Laboratory of Microbiota, College of Life Science, Northwest Normal University, Lanzhou 730070, China
| | - Chunyan Feng
- Laboratory of Microbiota, College of Life Science, Northwest Normal University, Lanzhou 730070, China
| | - Yingzhi Ning
- Laboratory of Microbiota, College of Life Science, Northwest Normal University, Lanzhou 730070, China.
| | - Zhenzhen Yi
- Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitoring, Guangdong Provincial Key Laboratory for Healthy and Safe Aquaculture, School of Life Science, South China Normal University, Guangzhou 510631, China.
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Morphology and taxonomy of Pseudokeronopsis rubra (Ehrenberg, 1836) and Pseudokeronopsis parasongi sp. nov. (Ciliophora, Hypotrichia, Urostylida) from the Yellow Sea. Eur J Protistol 2020; 76:125737. [DOI: 10.1016/j.ejop.2020.125737] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2019] [Revised: 06/21/2020] [Accepted: 07/28/2020] [Indexed: 11/19/2022]
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8
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Obert T, Vďačný P. Delimitation of five astome ciliate species isolated from the digestive tube of three ecologically different groups of lumbricid earthworms, using the internal transcribed spacer region and the hypervariable D1/D2 region of the 28S rRNA gene. BMC Evol Biol 2020; 20:37. [PMID: 32171235 PMCID: PMC7071660 DOI: 10.1186/s12862-020-1601-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Accepted: 03/03/2020] [Indexed: 01/19/2023] Open
Abstract
Background Various ecological groups of earthworms very likely constitute sharply isolated niches that might permit speciation of their symbiotic ciliates, even though no distinct morphological features appear to be recognizable among ciliates originating from different host groups. The nuclear highly variable ITS1–5.8S-ITS2 region and the hypervariable D1/D2 region of the 28S rRNA gene have proven to be useful tools for the delimitation of species boundaries in closely related free-living ciliate taxa. In the present study, the power of these molecular markers as well as of the secondary structure of the ITS2 molecule were tested for the first time in order to discriminate the species of endosymbiotic ciliates that were isolated from the gastrointestinal tract of three ecologically different groups of lumbricid earthworms. Results Nineteen new ITS1–5.8S-ITS2 region and D1/D2-28S rRNA gene sequences were obtained from five astome species (Anoplophrya lumbrici, A. vulgaris, Metaradiophrya lumbrici, M. varians, and Subanoplophrya nodulata comb. n.), which were living in the digestive tube of three ecological groups of earthworms. Phylogenetic analyses of the rRNA locus and secondary structure analyses of the ITS2 molecule robustly resolved their phylogenetic relationships and supported the distinctness of all five species, although previous multivariate morphometric analyses were not able to separate congeners in the genera Anoplophrya and Metaradiophrya. The occurrence of all five taxa, as delimited by molecular analyses, was perfectly correlated with the ecological groups of their host earthworms. Conclusions The present study indicates that morphology-based taxonomy of astome ciliates needs to be tested in the light of molecular and ecological data as well. The use of morphological identification alone is likely to miss species that are well delimited based on molecular markers and ecological traits and can lead to the underestimation of diversity and overestimation of host range. An integrative approach along with distinctly increased taxon sampling would be helpful to assess the consistency of the eco-evolutionary trend in astome ciliates.
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Affiliation(s)
- Tomáš Obert
- Department of Zoology, Faculty of Natural Sciences, Comenius University in Bratislava, Bratislava, 842 15, Slovak Republic
| | - Peter Vďačný
- Department of Zoology, Faculty of Natural Sciences, Comenius University in Bratislava, Bratislava, 842 15, Slovak Republic.
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Documentation of a new hypotrich species in the family Amphisiellidae, Lamtostyla gui n. sp. (Protista, Ciliophora) using a multidisciplinary approach. Sci Rep 2020; 10:3763. [PMID: 32111909 PMCID: PMC7048753 DOI: 10.1038/s41598-020-60327-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Accepted: 02/11/2020] [Indexed: 01/04/2023] Open
Abstract
An integrated approach considering both morphologic and molecular data is now required to improve biodiversity estimations and provide more robust systematics interpretations in hypotrichs, a highly differentiated group of ciliates. In present study, we document a new hypotrich species, Lamtostyla gui n. sp., collected from Chongming wetland, Shanghai, China, based on investigations using living observation, protargol staining, scanning and transmission electron microscopy, and gene sequencing. The new species is mainly recognized by having a short amphisiellid median cirral row composed of four cirri, three frontoventral cirri, three dorsal kinetids, four to eight macronuclear nodules, and small colorless cortical granules distributed as rosettes around dorsal bristles. Transmission electron microscope observation finds the associated microtubules of cirri and pharyngeal discs of L. gui are distinct from those in other hypotrichs. Morphogenesis of this species indicates that parental adoral membranelles retained intact or partial renewed is a potential feature to separate Lamtostyla granulifera-group and Lamtostyla lamottei-group. Phylogenetic analysis based on small subunit ribosomal RNA (rRNA) gene shows that this molecular marker is not useful to resolve phylogenetic relationships of the genus Lamtostyla, as well as many other hypotrichous taxa. We additionally characterize the internal transcribed spacers (ITS) region and the almost complete large subunit rRNA, which will be essential for future studies aimed at solving phylogenetic problems of Lamtostyla, or even the family Amphisiellidae. As a final remark, the critical screening of GenBank using ITS genes of our organism allows us to recognize a large amount of hypotrichous sequences have been misclassified as fungi. This observation suggests that hypotrichs could be frequently found in fungi-rich environment and overlooked by fungal specialists.
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Zhan Z, Li J, Xu K. Ciliate Environmental Diversity Can Be Underestimated by the V4 Region of SSU rDNA: Insights from Species Delimitation and Multilocus Phylogeny of Pseudokeronopsis (Protist, Ciliophora). Microorganisms 2019; 7:microorganisms7110493. [PMID: 31717798 PMCID: PMC6920991 DOI: 10.3390/microorganisms7110493] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2019] [Revised: 10/22/2019] [Accepted: 10/25/2019] [Indexed: 12/03/2022] Open
Abstract
Metabarcoding and high-throughput sequencing methods have greatly improved our understanding of protist diversity. Although the V4 region of small subunit ribosomal DNA (SSU-V4 rDNA) is the most widely used marker in DNA metabarcoding of eukaryotic microorganisms, doubts have recently been raised about its suitability. Here, using the widely distributed ciliate genus Pseudokeronopsis as an example, we assessed the potential of SSU-V4 rDNA and four other nuclear and mitochondrial markers for species delimitation and phylogenetic reconstruction. Our studies revealed that SSU-V4 rDNA is too conservative to distinguish species, and a threshold of 97% and 99% sequence similarity detected only one and three OTUs, respectively, from seven species. On the basis of the comparative analysis of the present and previously published data, we proposed the multilocus marker including the nuclear 5.8S rDNA combining the internal transcribed spacer regions (ITS1-5.8S-ITS2) and the hypervariable D2 region of large subunit rDNA (LSU-D2) as an ideal barcode rather than the mitochondrial cytochrome c oxidase subunit 1 gene, and the ITS1-5.8S-ITS2 as a candidate metabarcoding marker for ciliates. Furthermore, the compensating base change and tree-based criteria of ITS2 and LSU-D2 were useful in complementing the DNA barcoding and metabarcoding methods by giving second structure and phylogenetic evidence.
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Affiliation(s)
- Zifeng Zhan
- Laboratory of Marine Organism Taxonomy and Phylogeny, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; (Z.Z.); (J.L.)
- Laboratory for Marine Biology and Biotechnology, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266071, China
- Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China
| | - Ju Li
- Laboratory of Marine Organism Taxonomy and Phylogeny, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; (Z.Z.); (J.L.)
- Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China
| | - Kuidong Xu
- Laboratory of Marine Organism Taxonomy and Phylogeny, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; (Z.Z.); (J.L.)
- Laboratory for Marine Biology and Biotechnology, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266071, China
- Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Correspondence:
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Kim K, Jung J, Min G. Morphology and Molecular Phylogeny of Two New Terrestrial Ciliates,
Australocirrus rubrus
n. sp. and
Notohymena gangwonensis
n. sp. (Ciliophora: Oxytrichidae), from South Korea. J Eukaryot Microbiol 2019; 66:740-751. [DOI: 10.1111/jeu.12718] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Revised: 01/08/2019] [Accepted: 01/31/2019] [Indexed: 11/28/2022]
Affiliation(s)
- Kang‐San Kim
- Department of Biological Sciences Inha University 100 Inha‐ro, Nam‐gu Incheon 22212 South Korea
| | - Jae‐Ho Jung
- Department of Biology Gangneung‐Wonju National University 6 Jukheon‐gil Gangneung‐si Gangwon‐do 25457 South Korea
| | - Gi‐Sik Min
- Department of Biological Sciences Inha University 100 Inha‐ro, Nam‐gu Incheon 22212 South Korea
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12
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Zhu E, Ba S, Lyu Z, Li J, Shao C. Morphogenesis and Molecular Phylogeny of the Soil Ciliate
Holostichides chardezi
(Ciliophora, Hypotrichia, Bakuellidae), with Redefinition of
Holostichides
Foissner, 1987 and Establishment of a New Genus
Anteholostichides. J Eukaryot Microbiol 2019; 66:730-739. [DOI: 10.1111/jeu.12717] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Revised: 01/15/2019] [Accepted: 02/01/2019] [Indexed: 11/30/2022]
Affiliation(s)
- Erkang Zhu
- The Key Laboratory of Biomedical Information Engineering, Ministry of Education, School of Life Science and Technology Xi'an Jiaotong University Xi'an 710049 China
| | - Sang Ba
- School of Sciences Tibet University Lhasa 850000 China
| | - Zhao Lyu
- The Key Laboratory of Biomedical Information Engineering, Ministry of Education, School of Life Science and Technology Xi'an Jiaotong University Xi'an 710049 China
| | - Jingbao Li
- Key Laboratory for Space Bioscience and Biotechnology, Institute of Special Environmental Biophysics, School of Life Sciences Northwestern Polytechnical University Youyi Xilu 127 Xi'an 710072 Shaanxi China
| | - Chen Shao
- The Key Laboratory of Biomedical Information Engineering, Ministry of Education, School of Life Science and Technology Xi'an Jiaotong University Xi'an 710049 China
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Lyu Z, Li J, Zhu E, Shao C. Morphology and morphogenesis of a new soil urostylid ciliate, with the establishment of a new genus Caudiurostyla gen. nov. (Ciliophora, Hypotrichia). Eur J Protistol 2018; 66:166-176. [DOI: 10.1016/j.ejop.2018.09.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 09/26/2018] [Accepted: 09/26/2018] [Indexed: 10/28/2022]
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14
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Huang JB, Zhang T, Zhang Q, Li Y, Warren A, Pan H, Yan Y. Further insights into the highly derived haptorids (Ciliophora, Litostomatea): Phylogeny based on multigene data. ZOOL SCR 2018. [DOI: 10.1111/zsc.12269] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jie B. Huang
- Institute of Evolution & Marine Biodiversity; Ocean University of China; Qingdao China
| | - Tengteng Zhang
- Institute of Evolution & Marine Biodiversity; Ocean University of China; Qingdao China
| | - Qianqian Zhang
- Key Laboratory of Coastal Environmental Processes and Ecological Remediation; Yantai Institute of Coastal Zone Research; Chinese Academy of Science; Yantai China
| | - Yuan Li
- Institute of Evolution & Marine Biodiversity; Ocean University of China; Qingdao China
| | - Alan Warren
- Department of Life Sciences; Natural History Museum; London UK
| | - Hongbo Pan
- College of Oceanography; Hohai University; Nanjing China
| | - Ying Yan
- Institute of Evolution & Marine Biodiversity; Ocean University of China; Qingdao China
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