ArticleDNA research : an international journal for rapid publication of reports on genes and genomes2021
Transcriptomes and DNA methylomes in apomictic cells delineate nucellar embryogenesis initiation in citrus.
Article in DNA research : an international journal for rapid publication of reports on genes and genomes, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed, 25 citations in OpenAlex.
- CrAGL62 and potential paternally expressed gene CrbZIP contribute to paternal-excess postzygotic barriers in citrus.The New phytologist · 2026Article
- CitRWP directly activates CsDAZ3 to promote somatic embryogenesis in Citrus.The New phytologist · 2026Article
- Basis of apomixis in flowering plants - state of the art and research perspectives.Plant reproduction · 2026Review
- Paradigm shift in apomixis research: Targeting mutants with elements of apomixis in sexual crops.Planta · 2026Review
- Harnessing apomixis: natural mechanisms and synthetic innovations for advancing crop and forage breeding.Horticulture research · 2025Article
- Citrus genomes: past, present and future.Horticulture research · 2025Article
- To infinity and beyond: recent progress, bottlenecks, and potential of clonal seeds by apomixis.The Plant journal : for cell and molecular biology · 2025Review
- Article
- Recent Progress on Plant Apomixis for Genetic Improvement.International journal of molecular sciences · 2024Review
- Physiological, Metabolic, and Transcriptomic Analyses Reveal Mechanisms of Proliferation and Somatic Embryogenesis of Litchi (International journal of molecular sciences · 2024Article
- Global DNA methylation and the association between metal exposure and chronic kidney disease.Frontiers in public health · 2023Article
- Structural variation and parallel evolution of apomixis in citrus during domestication and diversification.National science review · 2022Article
- Apomixis: genetic basis and controlling genes.Horticulture research · 2022Article
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Authors and funding
12 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Citrus nucellar poly-embryony (NPE) is a mode of sporophytic apomixis that asexual embryos formed in the seed through adventitious embryogenesis from the somatic nucellar cells. NPE allows clonal propagation of rootstocks, but it impedes citrus cross breeding. To understand the cellular processes involved in NPE initiation, we profiled the transcriptomes and DNA methylomes in laser microdissection captured citrus apomictic cells. In apomictic cells, ribosome biogenesis and protein degradation were activated, whereas auxin polar transport was repressed. Reactive oxygen species (ROS) accumulated in the poly-embryonic ovules, and response to oxidative stress was provoked. The global DNA methylation level, especially that of CHH context, was decreased, whereas the methylation level of the NPE-controlling key gene CitRWP was increased. A C2H2 domain-containing transcription factor gene and CitRWP co-expressed specifically in apomictic cells may coordinate to initiate NPE. The activated embryogenic development and callose deposition processes indicated embryogenic fate of nucellar embryo initial (NEI) cells. In our working model for citrus NPE initiation, DNA hyper-methylation may activate transcription of CitRWP, which increases C2H2 expression and ROS accumulation, triggers epigenetic regulation and regulates cell fate transition and NEI cell identity in the apomictic cells.
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