ArticleThe Plant cell2004
maternally expressed gene1 Is a novel maize endosperm transfer cell-specific gene with a maternal parent-of-origin pattern of expression.
Article in The Plant cell, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 91 papers.
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Who cites it
91 citing papers in PubMed.
- A cellular view of seed development and germination.The Plant cell · 2026Review
- Introgression and parental conflict shape repeated occurrences of postzygotic isolation in Mimulus.Current biology : CB · 2026Article
- Bioinformatics insights into plant genomic imprinting: approaches, challenges, and future perspectives.Briefings in functional genomics · 2026Review
- Introgression and Parental Conflict Shape Repeated Occurrences of Postzygotic Isolation.bioRxiv : the preprint server for biology · 2025Article
- The Effect ofPlants (Basel, Switzerland) · 2025Article
- United by conflict: Convergent signatures of parental conflict in angiosperms and placental mammals.The Journal of heredity · 2024Review
- A MYB-related transcription factor ZmMYBR29 is involved in grain filling.BMC plant biology · 2024Article
- Decoding the gene regulatory network of endosperm differentiation in maize.Nature communications · 2024Article
- MaizeInternational journal of molecular sciences · 2023Article
- ZmDRR206 Regulates Nutrient Accumulation in Endosperm through Its Role in Cell Wall Biogenesis during Maize Kernel Development.International journal of molecular sciences · 2023Article
- Dissection of Developmental Programs and Regulatory Modules Directing Endosperm Transfer Cell and Aleurone Identity in the Syncytial Endosperm of Barley.Plants (Basel, Switzerland) · 2023Article
- Paternal imprinting of dosage-effect defective1 contributes to seed weight xenia in maize.Nature communications · 2022Article
- Molecular mechanisms of maize endosperm transfer cell development.Plant cell reports · 2022Review
- Maize Endosperm Development: Tissues, Cells, Molecular Regulation and Grain Quality Improvement.Frontiers in plant science · 2022Review
- RiceFrontiers in plant science · 2022Article
- Epigenetic modifications potentially controlling the allelic expression of imprinted genes in sunflower endosperm.BMC plant biology · 2021Article
- Synthetic Oligopeptides Mimicking γ-Core Regions of Cysteine-Rich Peptides ofCurrent issues in molecular biology · 2021Article
- Maize unstable factor for orange1 is essential for endosperm development and carbohydrate accumulation.Plant physiology · 2021Article
- Molecular Insights into the Role of Cysteine-Rich Peptides in Induced Resistance toInternational journal of molecular sciences · 2021Article
- Gene Expression in Parthenogenic Maize Proembryos.Plants (Basel, Switzerland) · 2021Article
31 more citing papers are in PubMed but not listed here.
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8 authors.
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Abstract
Growth of the maize (Zea mays) endosperm is tightly regulated by maternal zygotic and sporophytic genes, some of which are subject to a parent-of-origin effect. We report here a novel gene, maternally expressed gene1 (meg1), which shows a maternal parent-of-origin expression pattern during early stages of endosperm development but biallelic expression at later stages. Interestingly, a stable reporter fusion containing the meg1 promoter exhibits a similar pattern of expression. meg1 is exclusively expressed in the basal transfer region of the endosperm. Further, we show that the putatively processed MEG1 protein is glycosylated and subsequently localized to the labyrinthine ingrowths of the transfer cell walls. Hence, the discovery of a parent-of-origin gene expressed solely in the basal transfer region opens the door to epigenetic mechanisms operating in the endosperm to regulate certain aspects of nutrient trafficking from the maternal tissue into the developing seed.
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