ArticleGenome biology and evolution2019
Two Independent Plastid accD Transfers to the Nuclear Genome of Gnetum and Other Insights on Acetyl-CoA Carboxylase Evolution in Gymnosperms.
Article in Genome biology and evolution, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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15 citing papers in PubMed, 25 citations in OpenAlex.
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- Pan-Plastome Analysis Reveals the Genetic Diversity and Genetic Divergence ofInternational journal of molecular sciences · 2025Article
- The Sapria himalayana genome provides new insights into the lifestyle of endoparasitic plants.BMC biology · 2023Article
- The dynamic history of plastome structure across aquatic subclass Alismatidae.BMC plant biology · 2023Article
- Chloroplast genomes of fourFrontiers in plant science · 2023Article
- Plastome phylogenomics and historical biogeography of aquatic plant genus Hydrocharis (Hydrocharitaceae).BMC plant biology · 2022Article
- Gene duplication and rate variation in the evolution of plastid ACCase and Clp genes in angiosperms.Molecular phylogenetics and evolution · 2022Article
- Plastid NDH Pseudogenization and Gene Loss in a Recently Derived Lineage from the Largest Hemiparasitic Plant Genus Pedicularis (Orobanchaceae).Plant & cell physiology · 2021Article
- Article
- Comparative Analysis of Plastid Genomes in the Non-photosynthetic GenusFrontiers in plant science · 2021Article
- Genome skimming and exploration of DNA barcodes for Taiwan endemic cypresses.Scientific reports · 2020Article
- The complete plastome sequences of fivePlant diversity · 2020Article
- Plant Unsaturated Fatty Acids: Biosynthesis and Regulation.Frontiers in plant science · 2020Review
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Authors and funding
2 authors at 1 institution in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
Acetyl-CoA carboxylase (ACCase) is the key regulator of fatty acid biosynthesis. In most plants, ACCase exists in two locations (cytosol and plastids) and in two forms (homomeric and heteromeric). Heteromeric ACCase comprises four subunits, three of them (ACCA-C) are nuclear encoded (nr) and the fourth (ACCD) is usually plastid encoded. Homomeric ACCase is encoded by a single nr-gene (ACC). We investigated the ACCase gene evolution in gymnosperms by examining the transcriptomes of newly sequenced Gnetum ula, combined with 75 transcriptomes and 110 plastomes of other gymnosperms. AccD-coding sequences are elongated through the insertion of repetitive DNA in four out of five cupressophyte families (except Sciadopityaceae) and were functionally transferred to the nucleus of gnetophytes and Sciadopitys. We discovered that, among the three genera of gnetophytes, only Gnetum has two copies of nr-accD. Furthermore, using protoplast transient expression assays, we experimentally verified that the nr-accD precursor proteins in Gnetum and Sciadopitys can be delivered to the plastids. Of the two nr-accD copies of Gnetum, one dually targets plastids and mitochondria, whereas the other potentially targets plastoglobuli. The distinct transit peptides, gene architectures, and flanking sequences between the two Gnetum accDs suggest that they have independent origins. Our findings are the first account of two distinctly targeted nr-accDs of any green plants and the most comprehensive analyses of ACCase evolution in gymnosperms to date.
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