Project description:The ghrelin receptor antagonist [D-Lys3]-GHRP-6 (or PBS control) was administered for two weeks to NOD/SCID mice with PC3 prostate cancer cell line xenografts. Daily intraperitoneal injections of 20 nmoles/mouse/day [D-Lys3]-GHRP-6 significantly reduced xenograft tumour size at day 9 to 14. RNA-sequencing was performed on xenograft tumours at experimental endpoint (14 days).
Project description:We intend to identify transporters and their regulators involved in barley stomatal movement as well as components of the ABA signaling pathway. We isolated epidermal peels where only stomatal guard cells and their subsidiary cells survived, while other epidermal cell were mechanically disrupted and sequenced the resulting RNAs. Thus we analyzed transcripts differentially expressed between the barley stomatal complex and total leaves. These data served as the first overview of genes expressed in the stomatal complex and for cloning of relevant transporters.
Project description:Trancript Based Cloning (TBC) uses standard Gene Expression techniques to quickly isolate genes of interest and begin to determine their function. Using a particular mutant phenotype, identified during a programme of mutagenesis and screning, and a wild-type control we can quickly determine a list of genes that is likely to contain the gene responsible for the phenotype. TBC is a general method for identifying and cloning important plant genes that is fast and may be applicable to almost any plant species Transcript abundance assays on the barley rar1-2 mutant and Sultan5 wild type were performed by using standard methods for the Affymetrix barley genome array (Affymetrix). For each genotype, two independent biological replicates were analyzed and pooled for analysis. Data were analyzed with DCHIP VERSION 1.3 (www.dchip.org),using data from only perfect-match oligonucleotides. Model-based analysis was performed by using perfect match-only analysis, compiling data from two biological replicates for each condition. Pairwise comparisons were analyzed for each condition, and a lower 90% confidence bound (LCB) and fold change were determined for each comparison. Gene expression changes were considered significant if the LCB was 1.4-fold or higher and if the intensities between the two conditions differed by >100. ****[PLEXdb(http://www.plexdb.org) has submitted this series at GEO on behalf of the original contributor, james hadfield. The equivalent experiment is BB5 at PLEXdb.]
Project description:Purpose: The powdery mildew fungus, Blumeria graminis, is an obligate biotrophic pathogen of cereals and has significant impact on food security (Dean et al., 2012. Molecular Plant Pathology 13 (4): 414-430. DOI: 10.1111/j.1364-3703.2011.00783.x). Blumeria graminis f. sp. hordei (Bgh) is the causal agent of powdery mildew on barley (Hordeum vulgare L.). We sought to identify small RNAs (sRNAs) from both barley and Bgh that regulate gene expression both within species and cross-kingdom.
Project description:ngs2020_19_arimnet-barley responses to nitrate limitation-What are the molecular mechanisms taking place in barley under nitrate limitation?-Barley were grown on sand under 0.5 mM nitrate (Low nitrate= LN) or 5 mM nitrate (high nitrate = HN)
Project description:Trancript Based Cloning (TBC) uses standard Gene Expression techniques to quickly isolate genes of interest and begin to determine their function. Using a particular mutant phenotype, identified during a programme of mutagenesis and screning, and a wild-type control we can quickly determine a list of genes that is likely to contain the gene responsible for the phenotype. TBC is a general method for identifying and cloning important plant genes that is fast and may be applicable to almost any plant species Transcript abundance assays on the barley rar1-2 mutant and Sultan5 wild type were performed by using standard methods for the Affymetrix barley genome array (Affymetrix). For each genotype, two independent biological replicates were analyzed and pooled for analysis. Data were analyzed with DCHIP VERSION 1.3 (www.dchip.org),using data from only perfect-match oligonucleotides. Model-based analysis was performed by using perfect match-only analysis, compiling data from two biological replicates for each condition. Pairwise comparisons were analyzed for each condition, and a lower 90% confidence bound (LCB) and fold change were determined for each comparison. Gene expression changes were considered significant if the LCB was 1.4-fold or higher and if the intensities between the two conditions differed by >100. ****[PLEXdb(http://www.plexdb.org) has submitted this series at GEO on behalf of the original contributor, james hadfield. The equivalent experiment is BB5 at PLEXdb.] genotype: rar1-2 (mutant)(2-replications); genotype: Sultan 5 (wild type)(2-replications)
Project description:We generated ChIP-Seq data for two barley accessions with different resistance to powdery mildew. These data allowed us to explore the roles of epigenetic modifications in resistance response to powdery mildew at the first time. Our study opens the way for establishing the relationship between epigenetics and disease response in barley, and should inform future functional characterization of the regarding molecular basis. These data should also help researchers to exploit disease response-related genes for breeding application.
