ArticleCell cycle (Georgetown, Tex.)2019
Time-course analysis of nuclear events during conjugation in the marine ciliate Euplotes vannus and comparison with other ciliates (Protozoa, Ciliophora).
Article in Cell cycle (Georgetown, Tex.), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.
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Who cites it
21 citing papers in PubMed, 32 citations in OpenAlex.
- Synthesizing Sex/es Across Scales and Lineages: Centering Plants, Algae, Fungi, Protists, and Modular Metazoans.Integrative and comparative biology · 2026Article
- Evolution, Development, and the Incoherence of Sex: A Framework for Multiple Sex Concepts.Integrative and comparative biology · 2026Article
- Soma-derived 30-nt small RNAs are coupled with chromosome breakage and precisely target nontransposon DNA against elimination inScience advances · 2025Article
- Genes and proteins expressed at different life cycle stages in the model protist Euplotes vannus revealed by both transcriptomic and proteomic approaches.Science China. Life sciences · 2025Article
- Exploring the biogeography, morphology, and phylogeny of the condylostomatid ciliates (Alveolata, Ciliophora, Heterotrichea), with establishment of four newMarine life science & technology · 2024Article
- From germline genome to highly fragmented somatic genome: genome-wide DNA rearrangement during the sexual process in ciliated protists.Marine life science & technology · 2024Article
- A practical reference for studying meiosis in the model ciliateMarine life science & technology · 2022Review
- Doublets of the unicellular organismMarine life science & technology · 2022Article
- Macronuclear development in ciliates, with a focus on nuclear architecture.The Journal of eukaryotic microbiology · 2022Review
- Timing and characteristics of nuclear events during conjugation and genomic exclusion inMarine life science & technology · 2022Article
- Comparative Genome Analysis RevealsFrontiers in microbiology · 2022Article
- Biodiversity-based development and evolution: the emerging research systems in model and non-model organisms.Science China. Life sciences · 2021Review
- Case Study of the Response of NmSphere · 2021Article
- New contributions to the phylogeny of the ciliate class Heterotrichea (Protista, Ciliophora): analyses at family-genus level and new evolutionary hypotheses.Science China. Life sciences · 2021Article
- An Optimized and Versatile Counter-Flow Centrifugal Elutriation Workflow to Obtain Synchronized Eukaryotic Cells.Frontiers in cell and developmental biology · 2021Article
- New contributions to two ciliate genera (Ciliophora, Heterotrichea) based on morphological and molecular analyses, with description of a new Gruberia species.BMC microbiology · 2020Article
- Assessing the utility of Hsp90 gene for inferring evolutionary relationships within the ciliate subclass Hypotricha (Protista, Ciliophora).BMC evolutionary biology · 2020Article
- Conjugation inMicroorganisms · 2020Article
- Comparative Transcriptome Analyses during the Vegetative Cell Cycle in the Mono-Cellular OrganismMicroorganisms · 2020Article
- Morpholino-Mediated Knockdown of Ciliary Genes inFrontiers in microbiology · 2020Article
Corrections and comments
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Authors and funding
5 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Ciliates represent a morphologically and genetically distinct group of single-celled eukaryotes that segregate germline and somatic functions into two types of nuclei and exhibit complex cytogenetic events during the sexual process of conjugation, which is under the control of the so-called "mating type systems". Studying conjugation in ciliates may provide insight into our understanding of the origins and evolution of sex and fertilization. In the present work, we studied in detail the sexual process of conjugation using the model species Euplotes vannus, and compared these nuclear events with those occurring in other ciliates. Our results indicate that in E. vannus: 1) conjugation requires about 75 hours to complete: the longest step is the development of the new macronucleus (ca. 64h), followed by the nuclear division of meiosis I (5h); the mitotic divisions usually take only 2h; 2) there are three prezygotic divisions (mitosis and meiosis I and II), and two of the eight resulting nuclei become pronuclei; 3) after the exchange and fusion of the pronuclei, two postzygotic divisions occur; two of the four products differentiate into the new micronucleus and macronucleus, respectively, and the parental macronucleus degenerates completely; 4) comparison of the nuclear events during conjugation in different ciliates reveals that there are generally three prezygotic divisions while the number of postzygotic divisions is highly variable. These results can serve as reference to investigate the mating type system operating in this species and to analyze genes involved in the different steps of the sexual process.
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