Redescription of two little-known urostyloid ciliates, Anteholosticha randani (Grolière, 1975) Berger, 2003 and A. antecirrata Berger, 2006 (Ciliophora, Urostylida)

Fan, Yawen; Lu, Xiaoteng; Huang, Jie; Hu, Xiaozhong; Warren, Alan

doi:10.1016/j.ejop.2016.01.001

Cited by 16 publications

(5 citation statements)

References 51 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Because the genus Anteholosticha was established based only on a combination of plesiomorphies in the absence of obvious synapomorphies, Berger (2003Berger ( , 2006 had hypothesized the nonmonophyly of Anteholosticha. Subsequently, the non-monophyly of Anteholosticha has been reported in many previous studies (Park et al, 2013;Zhao et al, 2015;Fan et al, 2016;Chen et al, 2018Chen et al, , 2020Paiva, 2020;Jung et al, 2021). Our analyses also confirm that Anteholosticha species are scattered among different branches inside the core urostylid assemblage.…”

Section: Phylogenetic Analyses Of the Genus Heterobakuella And Anteholostichasupporting

confidence: 87%

“…nov. matches the generic definition of Anteholosticha given by Berger (2003). Hitherto, Anteholosticha is non-monophyletic and comprises more than 40 species (Berger, 2003(Berger, , 2006(Berger, , 2008Li et al, 2011;Xu et al, 2011;Park et al, 2013;Fan et al, 2016;Chen et al, 2018Chen et al, , 2020Jung et al, 2021). In terms of the vermiform shape (length:width ratio more than 5:1), the presence of many (more than 20) macronuclear nodules, three enlarged frontal cirri, three dorsal kineties, and a continuous adoral zone of membranelles, the following three species, namely A. fasciola (Kahl, 1932) Berger, 2003, A. grisea (Kahl, 1932) Berger, 2003, and A. violacea (Kahl, 1932) Berger, 2003, should be compared with Anteholosticha perezuzae sp.…”

Section: Comparison Of Anteholosticha Perezuzae Sp Nov With Congenersmentioning

confidence: 64%

“…To date, more than 40 nominal species of Anteholosticha have been reported, although many of them are poorly documented, with only simple morphologic descriptions and without molecular data. All these factors hamper our understanding of the systematics and taxonomy of this genus (Berger, 2006;Fan et al, 2016;Chen et al, 2018Chen et al, , 2020.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Taxonomy and Molecular Phylogeny of Two New Urostylid Ciliates (Protozoa: Ciliophora) From Chinese Wetlands and Establishment of a New Genus

et al. 2021

View full text Add to dashboard Cite

Hypotrich ciliates with evolutionary novelties are continually being discovered, challenging the current taxonomic system and attracting increased attention. In the present work, two new urostylid ciliates, Heterobakuella bergeri gen. nov., sp. nov. and Anteholosticha perezuzae sp. nov., isolated from Chinese wetland samples, were identified based on morphology and 18S rRNA gene sequences. Heterobakuella gen. nov. is defined by three frontal cirri, single buccal cirrus, one parabuccal cirrus, midventral complex composed of cirral pairs and one cirral row, one left and two right marginal cirral rows, transverse and pretransverse cirri present, caudal and frontoterminal cirri absent. Heterobakuella can be easily distinguished from the morphologically most similar genus, Apobakuella, mainly by the single buccal cirrus (vs. one buccal cirral row) and one parabuccal cirrus (vs. several parabuccal cirral rows originated from different anlagen). Phylogenetic analyses show that H. bergeri branches within the clade formed by Bergeriella ovata, Monocoronella carnea, Anteholosticha gracilis, and Neourostylopsis spp., rather than the clade represented by Apobakuella. The other species, A. perezuzae, is mainly characterized by a distinctly slender body shape with an average length:width ratio about 7, distinctively shaped biconcave and greenish cortical granules, as well as one or two pretransverse cirri. Phylogenetic analyses indicate the genus Anteholosticha is non-monophyletic.

show abstract

Section: Phylogenetic Analyses Of the Genus Heterobakuella And Anteholostichasupporting

confidence: 87%

Section: Comparison Of Anteholosticha Perezuzae Sp Nov With Congenersmentioning

confidence: 64%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Taxonomy and Molecular Phylogeny of Two New Urostylid Ciliates (Protozoa: Ciliophora) From Chinese Wetlands and Establishment of a New Genus

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Urostyla grandis clustered with A. antecirrata and B. granulifera in the gene tree (Figure ). There are also morphological similarities among these three species, including the presence of a conspicuous row of buccal cirri, numerous macronuclear nodules and yellow‐green cortical granules (Fan, Lu, Huang, Hu, & Warren, ). However, as LSU rDNA and ITS1‐5.8S‐ITS2 sequences of A. antecirrata are not yet available, and those of U. grandis are available for only one population, their close relationship in our gene trees might be due to poor taxon sampling.…”

Section: Discussionmentioning

confidence: 99%

Multigene‐based phylogeny of Urostylida (Ciliophora, Hypotrichia), with establishment of a novel family

et al. 2018

Self Cite

View full text Add to dashboard Cite

The Urostylida is a major taxon of hypotrichs with many unresolved evolutionary relationships. Due to incomplete or inaccurate character states and a paucity of morphogenetic data, the phylogeny of several taxa within urostylids is unresolved. Molecular phylogeny studies based on single gene (SSU rDNA) data may lead to conflict between morphological classification and SSU rDNA tree. In this work, 20 new sequences (SSU rDNA, ITS1‐5.8S‐ITS2 and LSU rDNA) of five genera of urostylids are provided to further investigate the phylogenetic relationships of this group. The main findings are as follows: (i) the establishment of Hemicycliostylidae, a novel family presently including Hemicycliostyla and Australothrix, is supported by both single gene and concatenated phylogenies; (ii) all molecular data support the exclusion of Eschaneustyla from the family Epiclintidae; (iii) Australothrix, Bergeriella and Thigmokeronopsis are distinctly separated in all gene trees although they share the character that each posterior streak generates the ventral row together with the midventral pair; (iv) compared with closely related genera in all trees, that is Metaurostylopsis and Apourostylopsis, Neourostylopsis is characterized by having more than three frontal cirri arranged in distinct or indistinct corona rather than the length of the midventral complex; (v) Hemicycliostyla and Pseudourostyla, two morphologically similar genera, do not form a monophyletic group in all molecular trees, suggesting that the bicorona, multiple marginal cirral rows and high numbers of dorsal kineties may result from convergent evolution; (vi) species of Bakuella fall into three separate clades in all trees suggesting that this genus needs to be split.

show abstract

“…According to this detailed revision, Family Urostyloidea includes about 34 valid genera and 154 valid species. In recent years, several new species were added to this family, which suggested that the diversity of this family of ciliates was under-estimated (e.g., Chen et al, 2011Chen et al, , 2013Fan et al, 2015Fan et al, , 2016Foissner and Stoeck, 2008;Hu et al, 2015;Jo et al, 2015;Jung et al, 2011Jung et al, , 2015Luo et al, 2015;Lv et al, 2015;Paiva et al, 2016;Shao et al, 2008a, b;Wang et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Morphology and SSU rDNA sequence analysis of two hypotrichous ciliates (Protozoa, Ciliophora, Hypotrichia) including the new species Metaurostylopsis parastruederkypkeae n. sp.

Wang

Huang

et al. 2016

J. Ocean Univ. China

Self Cite

View full text Add to dashboard Cite

The morphology and phylogeny of two hypotrichous ciliates, Metaurostylopsis parastruederkypkeae n. sp. and Neourostylopsis flavicana (Wang et al., 2011) Chen et al., 2013 were investigated based on morphology, infraciliature and the small subunit (SSU) ribosomal RNA gene (rRNA) sequence. The new species, M. parastruederkypkeae n. sp. was identified according to its characteristics: body shape ellipsoidal, size about (165-200) × (45-60) µm in vivo, cell color reddish; two types of cortical granules including wheat grain-like and yellow-greenish larger ones along the marginal cirri rows and dorsal kineties and dot-like and reddish smaller ones, grouped around marginal cirri on ventral side and arranged in short lines on dorsal side; 26-41 adoral membranelles; three frontal and one parabuccal, five to seven frontoterminal, one buccal, and three to six transverse cirri; seven to thirteen midventral pairs; five to nine unpaired ventral cirri, five to seven left and three to five right marginal rows; and three complete dorsal kineties. Phylogenetic analysis based on SSU rDNA sequences showed that both Metaurostylopsis and Neourostylopsis are monophyletic. As the internal relationship between and within both genera are not clear, further studies on the species in these two genera are necessary. The key characteristics of all known twelve Metaurostylopsis-Apourostylopsis-Neourostylopsis species complex were updated.

show abstract

Redescription of two little-known urostyloid ciliates, Anteholosticha randani (Grolière, 1975) Berger, 2003 and A. antecirrata Berger, 2006 (Ciliophora, Urostylida)

Cited by 16 publications

References 51 publications

Taxonomy and Molecular Phylogeny of Two New Urostylid Ciliates (Protozoa: Ciliophora) From Chinese Wetlands and Establishment of a New Genus

Taxonomy and Molecular Phylogeny of Two New Urostylid Ciliates (Protozoa: Ciliophora) From Chinese Wetlands and Establishment of a New Genus

Multigene‐based phylogeny of Urostylida (Ciliophora, Hypotrichia), with establishment of a novel family

Morphology and SSU rDNA sequence analysis of two hypotrichous ciliates (Protozoa, Ciliophora, Hypotrichia) including the new species Metaurostylopsis parastruederkypkeae n. sp.

Contact Info

Product

Resources

About