Insights into the phylogeny of the family Deviatidae (Protozoa, Ciliophora, Hypotrichia) based on multi-gene, morphological and ontogenetic information, with the establishment of a new species Deviata multilineae n. sp.

Zhang, Tengteng; Tang, Qiuyue; Chen, Zhuofan; Lian, Chunyu; Yang, Xiaolei; Song, Weibo; Warren, Alan; Shao, Chen

doi:10.1016/j.ympev.2022.107623

Cited by 6 publications

(2 citation statements)

References 30 publications

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“…which is consistent with previous studies to some extent [20,26,42]. The sister relationship between Caudidiodeviata nantongensis nov. gen., nov. sp.…”

Section: Phylogenetic Analysessupporting

confidence: 93%

“…Deviatids share a similar organization with kahliellids and are somewhat closely related to the family Kahliellidae, as Berger reported in 2011 [3]. However, the phylogenetic analysis based on 18S rRNA gene sequences did not support the grouping of deviatids and kahliellids [21,26,42]. Furthermore, both morphogenesis and gene sequences are only available for several species from the genera Deviata and Heterodeviata.…”

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confidence: 94%

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Integrative data of an unknown ciliate (Alveolata, Ciliophora) propose the establishment of Caudidiodeviata nov. gen.

Liao,

Jiang,

2023

Preprint

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Background As unicellular eukaryotes, ciliates are an indispensable component of ecosystems that play the role of intermediate nutrition link between bacteria or algae and meifauna. Recent faunistic surveys have discovered many new taxa of hypotrich ciliates, indicating their diversity is greater than previously thought. Here we document an undescribed form isolated from an artificial brackish water pond in East China. Examination of its morphology, ontogenesis and molecular phylogeny suggests it represents a new genus. Results The new genus is distinguished from its relatives by having a dorsomarginal kinety, frontoventral and caudal cirri. It also has five frontoventral cirral anlagen, and oral primordium originated apokinetally between right and left cirral field. The diagnostic traits of the new species include three frontal cirri, one buccal cirrus, one or two parabuccal cirri, a row of four to six frontoventral cirri, three left and two right marginal rows, and one bipolar dorsal kinety with one or two caudal cirri at its rear end. Its main morphogenetic features are: (i) the old oral apparatus is completely inherited by the proter except undulating membranes, which are reorganized in situ; (ii) anlagen for marginal rows and the left dorsal kinety develop intrakinetally in both proter and opisthe; (iii) dorsal kinety 2 is generated dorsomarginally; (iv) in the proter, anlagen I and II originate from the parental undulating membranes and the buccal cirrus, respectively, anlage III from anterior parabuccal cirrus, anlage IV from the parental frontoventral cirri; (v) anlagen I–IV of the opisthe are all generated from oral primordium, and (vi) anlage V occur in the innermost parental right marginal row in both dividers. The phylogenetic analysis suggests that the new species is closely related to the newly described Heterodeviata sinica Song et al., 2023, and then form a robust clade with other deviatids, which corroborates the familial assignment of our form. Conclusions The study of the morphology, and ontogenesis of a new brackish-water taxon increases the overall knowledge about the biodiversity of this ciliate group. It also adds to the genetic data available and further confirms the monophyly of family Deviatidae Foissner, 2016.

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“…which is consistent with previous studies to some extent [20,26,42]. The sister relationship between Caudidiodeviata nantongensis nov. gen., nov. sp.…”

Section: Phylogenetic Analysessupporting

confidence: 93%

mentioning

confidence: 94%

Integrative data of an unknown ciliate (Alveolata, Ciliophora) propose the establishment of Caudidiodeviata nov. gen.

Liao,

Jiang,

2023

Preprint

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Morphogenesis and Molecular Phylogeny of a Marine Urostylid Ciliate Apokeronopsis wrighti (Protista, Ciliophora, Hypotrichia)

Lian,

Li,

Zhang

et al. 2024

J. Ocean Univ. China

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Multi-gene-based investigation on the molecular phylogeny of the hypotrichous family Strongylidiidae (Protista, Ciliophora), with notes on the ontogeny of a new genus and new species

Song,

Zhang,

et al. 2024

Mar Life Sci Technol

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Ciliates in the subclass Hypotrichia have long been difficult to classify as they are one of the most polymorphic and highly differentiated groups, leading to their systematics remaining unresolved. Phylogenetic relationships within the hypotrich family Strongylidiidae have been ambiguous due to discordance between the morphological and genetic data. In this study, a new strongylidiid genus Heterouroleptus is established, mainly based on the novel mode of origin of the ventral cirral rows: left ventral cirral row (LVR) originates from frontal–ventral–transverse cirral anlagen (FVTA) III (anterior portion), IV (middle portion), and V (rear portion); right ventral cirral row comes from the entire FVTA VI. A new species, Heterouroleptus weishanensis gen. nov., sp. nov., is investigated along with the morphometric and molecular data from a population of Strongylidium wuhanense. Eight new sequences and nuclear gene markers (single-gene and multi-gene) are provided to analyze the phylogenetic relationships of strongylidiids, with the COI gene utilized to uncover further genetic information at species level and below. The results reveal that: (1) Strongylidiidae is monophyletic and has a close relationship with Dorsomarginalia; (2) Heterouroleptus gen. nov. forms a clade that is sister to all the other strongylidiids; (3) Hemiamphisiella Foissner, 1988 and Pseudouroleptus Hemberger, 1985 should not be synonyms, and both genera should be subdivided due to their variable morphological characteristics; (4) LVR originating from three anlagen is a plesiomorphy of Strongylidiidae. The discovery of the origin of the LVR not only contributes to the establishment of the genus Heterouroleptus, but also helps to improve the diagnosis of the family Strongylidiidae.

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Insights into the phylogeny of the family Deviatidae (Protozoa, Ciliophora, Hypotrichia) based on multi-gene, morphological and ontogenetic information, with the establishment of a new species Deviata multilineae n. sp.

Cited by 6 publications

References 30 publications

Integrative data of an unknown ciliate (Alveolata, Ciliophora) propose the establishment of Caudidiodeviata nov. gen.

Integrative data of an unknown ciliate (Alveolata, Ciliophora) propose the establishment of Caudidiodeviata nov. gen.

Morphogenesis and Molecular Phylogeny of a Marine Urostylid Ciliate Apokeronopsis wrighti (Protista, Ciliophora, Hypotrichia)

Multi-gene-based investigation on the molecular phylogeny of the hypotrichous family Strongylidiidae (Protista, Ciliophora), with notes on the ontogeny of a new genus and new species

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