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Dataset results
49 results for “Shoot apical meristem”
Leaf and shoot apical meristem transcriptomes of quinoa (Chenopodium quinoa Willd.) in response to photoperiod and plant development
<p>Our study focused on identifying key genes regulating flowering time and photoperiod response in quinoa. We examined the timing of photoperiod-induced floral transition and analyzed transcriptomes in photoperiod-sensitive and -insensitive quinoa accessions' leaf and shoot apical meristems. Histological analysis showed that floral transition in quinoa initiates two to three weeks after sowing. We found four groups of differentially expressed genes annotated in the QQ74-V2 reference genome that responded to plant development and floral transition, (i) 222 genes responsive to photoperiod in leaves, (ii) 1,812 genes differentially expressed between accessions under long-day conditions in leaves, (iii) 57 genes responding to developmental changes between weeks under short-day conditions in leaves, and (iv) 911 genes responding to floral transition within the shoot apical meristem. Interestingly, among numerous candidate genes, two<em> </em>putative <em>FT</em> orthologues and others (e.g., <em>SOC1</em>, <em>COL</em>, <em>AP1</em>) have been reported as key regulators of flowering time in other species. Additionally, we used co-expression networks to associate novel transcripts to a putative biological process based on the annotated genes within the same co-expression cluster. The candidate genes in this study would benefit quinoa breeding by identifying and integrating their beneficial haplotypes in crossing programs to develop adapted cultivars to diverse environmental conditions.</p> <p>We examined the timing of photoperiod-induced floral transition and analyzed transcriptomes in photoperiod-sensitive and -insensitive quinoa accessions' leaf and shoot apical meristems. Histological analysis revealed floral transition initiating two to three weeks after sowing. Differentially expressed genes were categorized in the QQ74-V2 reference genome, encompassing 222 genes responsive to photoperiod in leaves, 1,812 genes under long-day conditions, 57 genes during short-day conditions, and 911 genes during floral transition in shoot apical meristems. Notably, among numerous candidates, two putative FT orthologues and others (e.g., SOC1, COL, AP1) implicated in flowering time regulation in various species were identified. Co-expression networks associated novel transcripts with putative biological processes based on annotated genes in the same cluster. The candidate genes identified have potential applications in quinoa breeding, facilitating the incorporation of beneficial haplotypes in crossbreeding programs to develop cultivars adapted to diverse environmental conditions.</p>
Leaf and shoot apical meristem transcriptomes of quinoa (Chenopodium quinoa Willd.) in response to photoperiod and plant development
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Raw Confocal Images for "A quantitative gibberellin signaling biosensor reveals a role for gibberellins in internode specification at the shoot apical meristem"
<p>Abstract: Growth at the shoot apical meristem (SAM) is essential for shoot architecture construction. The phytohormones gibberellins (GA) play a pivotal role in coordinating plant growth, but their role in the SAM remainsmostly unknown. Here, we developed a ratiometric GA signaling biosensor by engineering one of the DELLA proteins, to suppress its master regulatory function in GA transcriptional responses while preserving its degradation upon GA sensing. We demonstrate that this degradation-based biosensor accurately reports on cellular changes inGA levels and perception during development.Weused this biosensor to map GA signaling activity in the SAM. We show that high GA signaling is found primarily in cells located between organ primordia that are the precursors of internodes. By gain- and loss-of-function approaches, we further demonstrate that GAs regulate cell division plane orientation to establish the typical cellular organization of internodes, thus contributing to internode speci<span>fi</span>cation in the SAM.</p>
RNA-seq from CymRSV-infected shoot apical meristem region
GEO Series GSE131476. Nicotiana benthamiana. 8 samples. Type: Expression profiling by high throughput sequencing.
Gene Expression between two cell layers in maize shoot apical meristem
GEO Series GSE16868. Zea mays. 2 samples. Type: Expression profiling by high throughput sequencing.
Transcript profiling of the pea shoot apical meristem highlights processes underlying its function and maintenance
GEO Series GSE9278. Lathyrus oleraceus. 4 samples. Type: Expression profiling by array.
Genetic networks regulating structure and function of the maize shoot apical meristem
GEO Series GSE137715. Zea mays. 6 samples. Type: Expression profiling by high throughput sequencing.
Function of ARGONAUTE proteins in the Arabidopsis shoot apical meristem (SAM) [seedling RNA-seq]
GEO Series GSE192609. Arabidopsis thaliana. 44 samples. Type: Expression profiling by high throughput sequencing.
A common set of genes responding to florigenic and photoperiodic induction at the shoot apical meristem of rice
GEO Series GSE226057. Oryza sativa. 18 samples. Type: Expression profiling by high throughput sequencing.
Transcriptomic analysis of dorso-ventral cell-types of Arabidopsis shoot apical meristem
GEO Series GSE90169. Arabidopsis thaliana. 18 samples. Type: Expression profiling by high throughput sequencing.
Function of ARGONAUTE proteins in the Arabidopsis shoot apical meristem (SAM) [Bisulfite-Seq]
GEO Series GSE192606. Arabidopsis thaliana. 24 samples. Type: Methylation profiling by high throughput sequencing.
Function of ARGONAUTE proteins in the Arabidopsis shoot apical meristem (SAM) [RNA-seq]
GEO Series GSE192608. Arabidopsis thaliana. 67 samples. Type: Expression profiling by high throughput sequencing.
RNAseq experiment to identify differentially expressed genes by AP2 induction in the Shoot Apical Meristem (SAM) of Arabidopsis
GEO Series GSE151082. Arabidopsis thaliana. 6 samples. Type: Expression profiling by high throughput sequencing.
ATAC-seq profiling of open chromatin in Arabidopsis thaliana shoot apical meristem stem cells and leaf mesophyll cells.
GEO Series GSE101940. Arabidopsis thaliana. 6 samples. Type: Other.
Function of ARGONAUTE proteins in the Arabidopsis shoot apical meristem (SAM) [snRNA-seq]
GEO Series GSE192610. Arabidopsis thaliana. 210 samples. Type: Expression profiling by high throughput sequencing.
Function of ARGONAUTE proteins in the Arabidopsis shoot apical meristem (SAM) [RIP-seq]
GEO Series GSE192607. Arabidopsis thaliana. 16 samples. Type: Other.
Function of ARGONAUTE proteins in the Arabidopsis shoot apical meristem (SAM).
GEO Series GSE239462. Arabidopsis thaliana. 38 samples. Type: Expression profiling by high throughput sequencing.
Transcriptome analyses of narrow sheath shoot apical meristem (SAM) vs non-mutant SAM
GEO Series GSE7248. Zea mays. 30 samples. Type: Expression profiling by array.
A global gene expression analysis in the shoot apical meristem of maize (Zea mays L.)
GEO Series GSE6267. Zea mays. 54 samples. Type: Expression profiling by array.
Genome-wide analysis of gene expression in the soybean shoot apical meristem
GEO Series GSE10607. Glycine max. 6 samples. Type: Expression profiling by array.
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