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Metabolomics,Unknown,Transcriptomics,Genomics,Proteomics

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Microarray analysis of the self-pruning related transcriptome in sweet orange (Citrus sinensis) spring shoots

ABSTRACT: Transcriptome changes were also examined at three stages of SAM self-pruning utilizing microarray. Combining results from different stages, 1,573 differentially expressed genes were identified; the extensive repertoire of genes associated with programmed cell death, cell wall biosynthesis and metabolism strongly suggests that abscission layers activate both catabolic and anabolic wall modification pathways during self-pruning process. Three independent citrus RNA samples (Three days before self-pruning, begin self-pruning and seven days after self-pruning) were hybridized with microarrays separately

ORGANISM(S): Citrus sinensis

SUBMITTER: jin zhang

PROVIDER: E-GEOD-53579 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Microarray analysis of the self-pruning related transcriptome in sweet orange (Citrus sinensis) spring shoots

Project description:Transcriptome changes were also examined at three stages of SAM self-pruning utilizing microarray. Combining results from different stages, 1,573 differentially expressed genes were identified; the extensive repertoire of genes associated with programmed cell death, cell wall biosynthesis and metabolism strongly suggests that abscission layers activate both catabolic and anabolic wall modification pathways during self-pruning process.

2016-01-05 | GSE53579 | GEO

Altered expression of SELF-PRUNING disrupts meristem homeostasis and facilitates delivery of signals to the meristem

Project description:Meristem maintenance, achieved through the highly conserved CLAVATA-WUSCHEL (CLV-WUS) regulatory circuit, is fundamental in balancing stem cell proliferation with cellular differentiation. Disruptions to meristem homeostasis can alter meristem size, leading to enlarged organs. Cotton, the world’s most important fiber crop, shows inherent variation in fruit size. Leveraging meristem regulation could benefit cotton agriculture and increase yields of high-quality fibers. Using virus-based gene manipulation in cotton, we altered expression of genes functioning in the CLV-WUS circuit to perturb meristem regulation and increase fruit size. Targeted alteration of individual components of the CLV-WUS circuit only modestly fasciated flowers and fruits. Unexpectedly, controlled expression of meristem regulator SELF-PRUNING (SP) dramatically increased the impacts of altered CLV-WUS expression on flower and fruit fasciation. Meristem transcriptomics show SP and genes of the CLV-WUS circuit are expressed independently from each other, suggesting these gene products are not acting in the same path. Virus-induced silencing of GhSP facilitated delivery of other signals to the meristem to dramatically alter organ specification. SELF-PRUNING has a role in cotton meristem homeostasis, and changes in GhSP expression increased access of virus-based signals to the meristem.

2023-03-01 | GSE206189 | GEO

SINGLE FLOWER TRUSS and SELF-PRUNING differentially regulate developmental and metabolic genetic networks to guide cotton (Gossypium hirsutum) architectures [GEO_SFT_SP]

Project description:Patterns of indeterminate and determinate growth specify plant architecture and influence crop productivity. In cotton (Gossypium hirsutum), SINGLE FLOWER TRUSS (SFT) stimulates the transition to flowering and determinate growth while its closely related antagonist SELF-PRUNING (SP) maintains meristems in indeterminate states to favor vegetative growth. To identify the molecular programs regulating cotton growth habits, and understand how altered expression of GhSFT and GhSP perturbs these programs, we used RNA-Seq to determine the gene expression networks involved in wild photoperiodic, domesticated day-neutral, and GhSFT- and GhSP-regulated architectures. GhSFT or GhSP affected the expression of genes regulating meristem fate and metabolic pathways. Gene ontology analysis predicted enrichment of transcripts involved in photosynthesis, secondary metabolism, and cell wall biosynthesis, and these hypotheses were functionally verified. Weighted gene co-expression network analyses using multiple cotton datasets identified diverse genetic modules highly correlated with SFT or SP, including those that may benefit crop management.

2020-06-30 | GSE144545 | GEO

Timecourse: MB neurons at the onset and early steps of axon pruning

Project description:Drosophila mushroom body (MB) γ neurons undergo axon pruning during metamorphosis through a process of localized degeneration of specific axon branches. Developmental axon degeneration is initiated at the onset of metamorphosis by the pre-pupal rise in the steroid hormone ecdysone. This study identifies genes that alter their expression in MB neurons at the onset and early steps of axon pruning. Keywords: timecourse

2008-06-01 | GSE10012 | GEO

Genomic analysis of axon pruning in Drosophila mushroom body neurons

Project description:Genomic analysis of axon pruning in Drosophila mushroom body neurons identifies the RNA-binding protein Boule as a negative regulator This SuperSeries is composed of the SubSeries listed below.

2008-06-01 | GSE10014 | GEO

EcR-dependent gene expression in MB neurons at the onset of axon pruning

Project description:This study identifies genes that show EcR-dependent gene expression in MB neurons at the onset of axon pruning. Keywords: nuclear receptor gene regulation

2008-06-01 | GSE10013 | GEO

Transcription profiling of Drosophila mushroom body neurons at the onset and early steps of axon pruning

Project description:Drosophila mushroom body (MB) Î³ neurons undergo axon pruning during metamorphosis through a process of localized degeneration of specific axon branches. Developmental axon degeneration is initiated at the onset of metamorphosis by the pre-pupal rise in the steroid hormone ecdysone. This study identifies genes that alter their expression in MB neurons at the onset and early steps of axon pruning. Experiment Overall Design: y,w animals were staged at -18, 0 and 5 hours relative to puparium formation. RNA was isolated from MB neurons labeled with mCD8::GFP driven by OK107-GAL4 by laser capture microdissection, labeled and hybridized to Affymetrix Drosophila Genome Arrays.

2008-06-18 | E-GEOD-10012 | biostudies-arrayexpress

Transcription-associated histone pruning demarcates macroH2A chromatin domains

Project description:Transcription-associated histone pruning demarcates macroH2A chromatin domains

| PRJNA431857 | ENA

INFLORESCENCE DEFICIENT IN ABSCISSION (IDA) and its receptors HAE/HSL2 are required for cell expansion and cell separation during floral organ abscission in Arabidopsis thaliana (part 2)

Project description:Plants have the ability to shed organs that are no longer in use. In Arabidopsis thaliana abscission of floral organs involves cell wall remodeling and cell expansion prior to cell wall dissolution. IDA encodes a secreted peptide that signals through the leucine-rich repeat receptor-like kinases (LRR-RLKs) HAESA (HAE) (At4g28490) and HASEA-LIKE2 (HSL2) (At5g65710). Arabidopsis thaliana (ecotype Colombia-0) plants were kept in growth chambers with a 16/8 h (light/dark) photoperiod at 22 M-BM-0C, and 100 mE m-2 s-1 light intensity. 4 biological replicates were prepared from each sample, each containing abscission zone regions of siliques position 4 to 8 (when counting from the flowe at anthesis at the top of the inflorescence) from plants with at least 20 siliques. Differences in transcriptional responses were measured by comparing genes expression in abscission zones of ida-2 plants (SALK_133209) against abscission zones from control plants.

2013-12-30 | E-GEOD-48107 | biostudies-arrayexpress

INFLORESCENCE DEFICIENT IN ABSCISSION (IDA) and its receptors HAE/HSL2 are required for cell expansion and cell separation during floral organ abscission in Arabidopsis thaliana (part 1)

Project description:Plants have the ability to shed organs that are no longer in use. In Arabidopsis thaliana abscission of floral organs involves cell wall remodeling and cell expansion prior to cell wall dissolution. IDA encodes a secreted peptide that signals through the leucine-rich repeat receptor-like kinases (LRR-RLKs) HAESA (HAE) (At4g28490) and HASEA-LIKE2 (HSL2) (At5g65710). Arabidopsis thaliana (ecotype Colombia-0) plants were kept in growth chambers with a 16/8 h (light/dark) photoperiod at 22 M-BM-0C, and 100 mE m-2 s-1 light intensity. 4 biological replicates were prepared from each sample, each containing abscission zone regions of siliques position 4 to 8 (when counting from the flowe at anthesis at the top of the inflorescence) from plants with at least 20 siliques. Differences in transcriptional responses were measured by comparing genes expression in abscission zones of hae hsl2 plants (SALK_021905 x SALK_030520) against abscission zones from control plants.

2013-12-30 | E-GEOD-48106 | biostudies-arrayexpress

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