ArticleBMC plant biology2023
Comparative analysis of the transcriptome during single-seed formation of Castanea henryi: regulation of starch metabolism and endogenous hormones.
Article in BMC plant biology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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10 citing papers in PubMed.
- Integrated transcriptome and proteome indicate molecular mechanisms of endogenous hormonal imbalance regulating variation in jujube (Food chemistry. Molecular sciences · 2026Article
- PpBRC1 negatively regulates branching via modulating GA signal transduction gene PpGID1b in peach (Prunus persica).Plant cell reports · 2026Article
- Dynamic changes of endogenous hormones and transcriptome analysis reveal the regulatory mechanism of gibberellin-promoted male cone formation in Platycladus orientalis.BMC plant biology · 2026Article
- Transcriptome and Metabolome Analyses Reveal the Accumulation Mechanism of Carbohydrates DuringBiomolecules · 2025Article
- A Non-Specific Phytohormone Regulatory Network inPlants (Basel, Switzerland) · 2025Article
- Article
- Research overview on the genetic mechanism underlying the biosynthesis of polysaccharide in tuber plants.PeerJ · 2024Review
- Embryological observations on seed abortion in Hibiscus syriacus L. and physiological studies on nutrients, enzyme activity and endogenous hormones.BMC plant biology · 2023Article
- Dynamic cytological and transcriptomic analyses provide novel insights into the mechanisms of sex determination inFrontiers in plant science · 2023Article
- Beyond Structure: The Role of the Outer Integument in Embryo, Endosperm, and Seed Development in Annona.Physiologia plantarumArticle
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6 authors.
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Abstract
backgroundIn seed plants, the ovule is the precursor to the seed. The process of ovule development and differentiation is regulated by multiple factors, including starch metabolism and endogenous hormones. Castanea henryi produces nuts with high nutritional value. However, the high proportion of empty buds restricts the commercial use of the tree. Previous studies have shown that the empty bud phenotype is closely related to ovule abortion. If none of the ovules in the ovary expand rapidly and develop in 7-8 weeks after pollination, an empty bud will form. Therefore, we studied the development and molecular mechanisms underlying single seed formation in C. henryi.
resultsWe found that 49 days after pollination (DAP) is a critical period for the formation of fertile and abortive ovules. The morphology and starch distribution of the fertile and abortive ovules differed significantly at 49 DAP. The fertile ovules were smooth and round in appearance, with a large amount of starch. In contrast, abortive ovules were smaller with only a small amount of starch. The embryo sac of the abortive ovule proceeded to develop abnormally, and the entire ovule lacked starch. We identified 37 candidate genes involved in metabolism with potential roles in the regulation of starch levels. Three ADP-glucose pyrophosphorylase (AGPase) genes, one granule-bound starch synthase (GBSS) gene, and two beta-amylase genes could affect starch accumulation. The levels of auxin, cytokinins, gibberellins, and jasmonic acid in fertile ovules were higher than those in abortive ovules. In addition, the levels of endogenous abscisic acid and salicylic acid in abortive ovules were higher than those in fertile ovules of the same age, consistent with the expression patterns of genes related to the synthesis of abscisic and salicylic acid and signal transduction. We identified and mapped the differentially expressed genes associated with hormone synthesis and signal transduction.
conclusionsThese results improve our general understanding of the molecular mechanisms underlying single seed development in C. henryi and the phenomenon of empty buds, providing directions for future research.
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