ArticleBMC genomics2014
Involvements of PCD and changes in gene expression profile during self-pruning of spring shoots in sweet orange (Citrus sinensis).
Article in BMC genomics, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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Who cites it
17 citing papers in PubMed, 44 citations in OpenAlex.
- Citrus genomes: past, present and future.Horticulture research · 2025Article
- Transcriptome Analysis of Resistant Cotton Germplasm Responding to Reniform Nematodes.Plants (Basel, Switzerland) · 2024Article
- Signaling pathways mediating the induction of preharvest fruit drop in litchi.Frontiers in plant science · 2024Article
- Phytohormones and candidate genes synergistically regulate fruitlet abscission in Areca catechu L.BMC plant biology · 2023Article
- Histology, physiology, and transcriptomic and metabolomic profiling reveal the developmental dynamics of annual shoots in tree peonies (Horticulture research · 2023Article
- Citrus ACC synthase CiACS4 regulates plant height by inhibiting gibberellin biosynthesis.Plant physiology · 2023Article
- Long-reads-based transcriptome dataset from leaves of lime,Data in brief · 2023Article
- Transcriptomic profiling of Solanum peruvianum LA3858 revealed a Mi-3-mediated hypersensitive response to Meloidogyne incognita.BMC genomics · 2020Article
- Gene body demethylation increases expression and is associated with self-pruning during grape genome duplication.Horticulture research · 2020Article
- The Tomato Hybrid Proline-rich Protein regulates the abscission zone competence to respond to ethylene signals.Horticulture research · 2018Article
- Genome-wide screening and characterization of long non-coding RNAs involved in flowering development of trifoliate orange (Poncirus trifoliata L. Raf.).Scientific reports · 2017Article
- Identification and molecular characterization of an IDA-like gene from litchi, LcIDL1, whose ectopic expression promotes floral organ abscission in Arabidopsis.Scientific reports · 2016Article
- Omics studies of citrus, grape and rosaceae fruit trees.Breeding science · 2016Review
- Morphological Characterization and Gene Expression Profiling during Bud Development in a Tropical Perennial,Frontiers in plant science · 2016Article
- Characterization and Expression Analysis of PtAGL24, a SHORT VEGETATIVE PHASE/AGAMOUS-LIKE 24 (SVP/AGL24)-Type MADS-Box Gene from Trifoliate Orange (Poncirus trifoliata L. Raf.).Frontiers in plant science · 2016Article
- De novo Transcriptome Sequencing and Development of Abscission Zone-Specific Microarray as a New Molecular Tool for Analysis of Tomato Organ Abscission.Frontiers in plant science · 2015Article
- An improved fruit transcriptome and the identification of the candidate genes involved in fruit abscission induced by carbohydrate stress in litchi.Frontiers in plant science · 2015Article
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundCitrus shoot tips abscise at an anatomically distinct abscission zone (AZ) that separates the top part of the shoots into basal and apical portions (citrus self-pruning). Cell separation occurs only at the AZ, which suggests its cells have distinctive molecular regulation. Although several studies have looked into the morphological aspects of self-pruning process, the underlying molecular mechanisms remain unknown.
resultsIn this study, the hallmarks of programmed cell death (PCD) were identified by TUNEL experiments, transmission electron microscopy (TEM) and histochemical staining for reactive oxygen species (ROS) during self-pruning of the spring shoots in sweet orange. Our results indicated that PCD occurred systematically and progressively and may play an important role in the control of self-pruning of citrus. Microarray analysis was used to examine transcriptome changes at three stages of self-pruning, and 1,378 differentially expressed genes were identified. Some genes were related to PCD, while others were associated with cell wall biosynthesis or metabolism. These results strongly suggest that abscission layers activate both catabolic and anabolic wall modification pathways during the self-pruning process. In addition, a strong correlation was observed between self-pruning and the expression of hormone-related genes. Self-pruning plays an important role in citrus floral bud initiation. Therefore, several key flowering homologs of Arabidopsis and tomato shoot apical meristem (SAM) activity genes were investigated in sweet orange by real-time PCR and in situ hybridization, and the results indicated that these genes were preferentially expressed in SAM as well as axillary meristem.
conclusionBased on these findings, a model for sweet orange spring shoot self-pruning is proposed, which will enable us to better understand the mechanism of self-pruning and abscission.
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