ArticlePlant physiology2022
Mitochondrion-encoded circular RNAs are widespread and translatable in plants.
Article in Plant physiology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed.
- Circular RNA Vv-circCOR27 modulates thermotolerance through attenuating VvHSP90.2b-VvHsfA7a interaction in grapevine.The New phytologist · 2026Article
- Identification and characterization of tissue- and stress-specific circular RNAs (circRNAs) of tea to generate the largest tea circRNAs data repository.Scientific reports · 2025Article
- Mitochondrial mRNA oligocitydylation occurs in Chlorophyceae and Ulvales but not Bryopsidales or Trebouxiophyceae.Journal of phycology · 2025Article
- Expression of thePlants (Basel, Switzerland) · 2025Article
- Viroids and Retrozymes: Plant Circular RNAs Capable of Autonomous Replication.Plants (Basel, Switzerland) · 2024Review
- Review
- Long- and short-read sequencing methods discover distinct circular RNA pools in Lotus japonicus.The plant genome · 2024Article
- Emphasizing the Role of Long Non-Coding RNAs (lncRNA), Circular RNA (circRNA), and Micropeptides (miPs) in Plant Biotic Stress Tolerance.Plants (Basel, Switzerland) · 2023Review
- Dysregulation of circular RNAs in inflammation and cancers.Fundamental research · 2023Review
- Functional Differences of Grapevine Circular RNAPlants (Basel, Switzerland) · 2023Article
- Circular mitochondrial-encoded mRNAs are a distinct subpopulation of mitochondrial mRNA in Trypanosoma brucei.Scientific reports · 2023Article
- Circular mitochondrial-encoded mRNAs are a distinct subpopulation of mitochondrial mRNA inbioRxiv : the preprint server for biology · 2023Article
- Identification and Functional Prediction of CircRNAs in Leaves of F1 Hybrid Poplars with Different Growth Potential and Their Parents.International journal of molecular sciences · 2023Article
- Identification, biogenesis, function, and mechanism of action of circular RNAs in plants.Plant communications · 2023Review
Corrections and comments
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Authors and funding
8 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Nucleus-encoded circular RNAs (ncircRNAs) have been widely detected in eukaryotes, and most circRNA identification algorithms are designed to identify them. However, using these algorithms, few mitochondrion-encoded circRNAs (mcircRNAs) have been identified in plants, and the role of plant mcircRNAs has not yet been addressed. Here, we developed a circRNA identification algorithm, mitochondrion-encoded circRNA identifier, based on common features of plant mitochondrial genomes. We identified 7,524, 9,819, 1,699, 1,821, 1,809, and 5,133 mcircRNAs in maize (Zea mays), Arabidopsis (Arabidopsis thaliana), rice (Oryza sativa), tomato (Solanum lycopersicum), cucumber (Cucumis sativus), and grape (Vitis vinifera), respectively. These mcircRNAs were experimentally validated. Plant mcircRNAs had distinct characteristics from ncircRNAs, and they were more likely to be derived from RNA degradation but not intron backsplicing. Alternative circularization was prevalent in plant mitochondria, and most parental genomic regions hosted multiple mcircRNA isoforms, which have homogenous 5' termini but heterogeneous 3' ends. By analysis of mitopolysome and mitoribosome profiling data, 1,463 mcircRNAs bound to ribosomes were detected in maize and Arabidopsis. Further analysis of mass spectrometry-based proteomics data identified 358 mcircRNA-derived polypeptides. Overall, we developed a computational pipeline that efficiently identifies plant mcircRNAs, and we demonstrated mcircRNAs are widespread and translated in plants.
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