ArticleBMC evolutionary biology2011
Eukaryote-to-eukaryote gene transfer gives rise to genome mosaicism in euglenids.
Article in BMC evolutionary biology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.
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32 citing papers in PubMed, 65 citations in OpenAlex.
- Lack of evidence for the presence of plastids in the evolutionary history of kinetoplastid protists.Folia parasitologica · 2026Article
- Dynamic LHCI antenna and inter-photosystem spillover enable flexible light harvesting in Euglena gracilis.The Plant journal : for cell and molecular biology · 2026Article
- Structural basis of diadinoxanthin-Chl a/b-binding proteins in the photosystem I supercomplex ofScience advances · 2026Article
- Structure and energy transfer of a far-red-absorbing euglenophyte PSI-LhcE-LhcbM supercomplex.Nature communications · 2026Article
- Structural insights into the divergent evolution of a photosystem I supercomplex inScience advances · 2025Article
- Positive Selection of a Starch Synthesis Gene and Phenotypic Differentiation of Starch Accumulation in Symbiotic and Free-Living Coral Symbiont Dinoflagellate Species.Genome biology and evolution · 2025Article
- Molecular diversity of green-colored microbial mats from hot springs of northern Japan.Extremophiles : life under extreme conditions · 2024Article
- Review
- Euglenozoan kleptoplasty illuminates the early evolution of photoendosymbiosis.Proceedings of the National Academy of Sciences of the United States of America · 2023Article
- An Enigmatic Stramenopile Sheds Light on Early Evolution in Ochrophyta Plastid Organellogenesis.Molecular biology and evolution · 2022Article
- Proteomic Responses of Dark-AdaptedFrontiers in bioengineering and biotechnology · 2022Article
- Phylogenomic and Microsynteny Analysis Provides Evidence of Genome Arrangements of High-Affinity Nitrate Transporter Gene Families of Plants.International journal of molecular sciences · 2021Article
- Article
- Suppression of the Lycopene Cyclase Gene Causes Downregulation of Ascorbate Peroxidase Activity and Decreased Glutathione Pool Size, Leading to HFrontiers in plant science · 2021Article
- Global Shifts in Gene Expression Profiles Accompanied with Environmental Changes in Cnidarian-Dinoflagellate Endosymbiosis.G3 (Bethesda, Md.) · 2019Article
- Article
- Transcriptome, proteome and draft genome of Euglena gracilis.BMC biology · 2019Article
- Green fluorescence from cnidarian hosts attracts symbiotic algae.Proceedings of the National Academy of Sciences of the United States of America · 2019Article
- Nuclear genome sequence of the plastid-lacking cryptomonad Goniomonas avonlea provides insights into the evolution of secondary plastids.BMC biology · 2018Article
- Peculiar features of the plastids of the colourless alga Euglena longa and photosynthetic euglenophytes unveiled by transcriptome analyses.Scientific reports · 2018Article
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Authors and funding
5 authors at 4 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundEuglenophytes are a group of photosynthetic flagellates possessing a plastid derived from a green algal endosymbiont, which was incorporated into an ancestral host cell via secondary endosymbiosis. However, the impact of endosymbiosis on the euglenophyte nuclear genome is not fully understood due to its complex nature as a 'hybrid' of a non-photosynthetic host cell and a secondary endosymbiont.
resultsWe analyzed an EST dataset of the model euglenophyte Euglena gracilis using a gene mining program designed to detect laterally transferred genes. We found E. gracilis genes showing affinity not only with green algae, from which the secondary plastid in euglenophytes evolved, but also red algae and/or secondary algae containing red algal-derived plastids. Phylogenetic analyses of these 'red lineage' genes suggest that E. gracilis acquired at least 14 genes via eukaryote-to-eukaryote lateral gene transfer from algal sources other than the green algal endosymbiont that gave rise to its current plastid. We constructed an EST library of the aplastidic euglenid Peranema trichophorum, which is a eukaryovorous relative of euglenophytes, and also identified 'red lineage' genes in its genome.
conclusionsOur data show genome mosaicism in E. gracilis and P. trichophorum. One possible explanation for the presence of these genes in these organisms is that some or all of them were independently acquired by lateral gene transfer and contributed to the successful integration and functioning of the green algal endosymbiont as a secondary plastid. Alternative hypotheses include the presence of a phagocytosed alga as the single source of those genes, or a cryptic tertiary endosymbiont harboring secondary plastid of red algal origin, which the eukaryovorous ancestor of euglenophytes had acquired prior to the secondary endosymbiosis of a green alga.
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