ArticleMolecular biology and evolution2010
Differential gene retention in plastids of common recent origin.
Article in Molecular biology and evolution, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.
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Who cites it
41 citing papers in PubMed.
- Eukaryogenesis From FECA to LECA: Radical Steps Along the Way.BioEssays : news and reviews in molecular, cellular and developmental biology · 2025Review
- Protein import into bacterial endosymbionts and evolving organelles.The FEBS journal · 2025Review
- Loss of key endosymbiont genes may facilitate early host control of the chromatophore iniScience · 2022Article
- Hypothesis: Trans-splicing Generates Evolutionary Novelty in the Photosynthetic Amoeba Paulinella.Journal of phycology · 2022Article
- Tightly Constrained Genome Reduction and Relaxation of Purifying Selection during Secondary Plastid Endosymbiosis.Molecular biology and evolution · 2022Article
- The economics of organellar gene loss and endosymbiotic gene transfer.Genome biology · 2021Article
- Why is primary endosymbiosis so rare?The New phytologist · 2021Review
- Amoeba Genome Reveals Dominant Host Contribution to Plastid Endosymbiosis.Molecular biology and evolution · 2021Article
- Plastid Genomes of Flowering Plants: Essential Principles.Methods in molecular biology (Clifton, N.J.) · 2021Article
- Paulinella, a model for understanding plastid primary endosymbiosis.Journal of phycology · 2020Review
- The Puzzle of Metabolite Exchange and Identification of Putative Octotrico Peptide Repeat Expression Regulators in the Nascent Photosynthetic Organelles ofFrontiers in microbiology · 2020Article
- The Photosynthetic Adventure of Paulinella Spp.Results and problems in cell differentiation · 2020Article
- Evolutionary dynamics of the chromatophore genome in three photosynthetic Paulinella species.Scientific reports · 2019Article
- An Expanded Ribosomal Phylogeny of Cyanobacteria Supports a Deep Placement of Plastids.Frontiers in microbiology · 2019Article
- Testing the Domino Theory of Gene Loss inLife (Basel, Switzerland) · 2018Article
- Review
- Genomic divergence within non-photosynthetic cyanobacterial endosymbionts in rhopalodiacean diatoms.Scientific reports · 2017Article
- Early photosynthetic eukaryotes inhabited low-salinity habitats.Proceedings of the National Academy of Sciences of the United States of America · 2017Article
- Natural selection drove metabolic specialization of the chromatophore in Paulinella chromatophora.BMC evolutionary biology · 2017Article
- Gene transfers from diverse bacteria compensate for reductive genome evolution in the chromatophore of Paulinella chromatophora.Proceedings of the National Academy of Sciences of the United States of America · 2016Article
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9 authors.
Funding
Abstract
The cyanobacterium-derived plastids of algae and plants have supported the diversification of much of extant eukaryotic life. Inferences about early events in plastid evolution must rely on reconstructing events that occurred over a billion years ago. In contrast, the photosynthetic amoeba Paulinella chromatophora provides an exceptional model to study organelle evolution in a prokaryote-eukaryote (primary) endosymbiosis that occurred approximately 60 mya. Here we sequenced the plastid genome (0.977 Mb) from the recently described Paulinella FK01 and compared the sequence with the existing data from the sister taxon Paulinella M0880/a. Alignment of the two plastid genomes shows significant conservation of gene order and only a handful of minor gene rearrangements. Analysis of gene content reveals 66 differential gene losses that appear to be outright gene deletions rather than endosymbiotic gene transfers to the host nuclear genome. Phylogenomic analysis validates the plastid ancestor as a member of the Synechococcus-Prochlorococcus group, and the cyanobacterial provenance of all plastid genes suggests that these organelles were not targets of interphylum gene transfers after endosymbiosis. Inspection of 681 DNA alignments of protein-encoding genes shows that the vast majority have dN/dS ratios <<1, providing evidence for purifying selection. Our study demonstrates that plastid genomes in sister taxa are strongly constrained by selection but follow distinct trajectories during the earlier phases of organelle evolution.
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