Project description:Transcription profiling by array of 10 days old Brassica rapa ssp. chinensis seedlings treated with 2mM methyl jasmonate by spraying and harvesting 48 hours past treatment
Project description:Illumina HiSeq technology was used to generate mRNA profiles from Populus tremula x alba INRA 717-1B4 roots treated with Methyl jasmonate. Samples were harvested after two weeks either from untreated control roots or from Methyl jasmonate treated roots. Paired-end (2X100bp) reads were generated and aligned to the Populus trichocarpa (http://www.phytozome.net/poplar.php) using CLC Genomics Workbench 6.
Project description:Illumina HiSeq technology was used to generate mRNA profiles from Populus tremula x alba INRA 717-1B4 roots treated with Methyl jasmonate. Samples were harvested after two weeks either from untreated control roots or from Methyl jasmonate treated roots. Paired-end (2X100bp) reads were generated and aligned to the Populus trichocarpa (http://www.phytozome.net/poplar.php) using CLC Genomics Workbench 6. mRNA profiles from Populus tremula x alba INRA 717-1B4 roots treated with Methyl jasmonate as well as from control roots were generated by paired-end (2X100bp) Illumina HiSeq sequencing. Four samples were sequenced per lane, two biological replicates per treatment.
Project description:In hairy roots of the model legume Medicago truncatula the saponin production can be elicited by methyl jasmonate treatment. To identify genes potentially involved in saponin biosynthesis or its regulation we carried out transcript profiling by RNA-Seq of M. truncatula hairy roots treated with 100 μM of methyl jasmonate (dissolved in ethanol) for two or 24 hours. As control, M. truncatula hairy roots treated with an equivalent amount of ethanol were profiled.
Project description:Atractylodes macrocephala is a traditional Chinese medicine in China. It is widely used in clinic and the market demand is great. The quality difference between A. chinensis(Bunge) Koidz and A. japonica Koidz.ex Kitam is great, which seriously affects its clinical curative effect. Determination of Atractylosin by High-performance liquid chromatography. Transcriptomics coupled with Metabonomics for elucidating differences between the components in A. chinensis(Bunge) Koidz and A. japonica Koidz.ex Kitam. It was found that ACS, ACC, PAL and NOS were the key genes and metabolites related to the synthesis of atractylodes macrocephala. The decrease of salicylic acid content in A. chinensis(Bunge) Koidz may lead to the decrease of its ability to mediate the elicitor of endophytic fungi, resulting in the down-regulation of the expression of TGAL4 transcription factor and the up-regulation of DOGL3 transcription factor in A. chinensis(Bunge) Koidz cells, which may affect the accumulation of Atractylosin. The study above provides a theoretical basis for elucidating the biosynthesis pathway of atractylosin in A. chinensis(Bunge) Koidz.
Project description:We investigated the transcriptional response of hybrid poplar (Populus trichocarpa x deltoides) leaves to methyl jasmonate treatment over a 24 hour time course. Experiments were conducted using clonal trees under greenhouse conditions at the University of British Columbia. We used the 15.5K poplar cDNA microarray platform previously described by Ralph et al. (Molecular Ecology 2006, 15:1275-1297). Differentially expressed genes were determined using three criteria: fold-change between methyl jasmonate-treated and tween-treated control leaves > 1.5-fold, P value < 0.05 and Q value < 0.05. This study identified > 1,000 differentially expressed genes in response to methyl jasmonate treatment.
Project description:We investigated the transcriptional response of hybrid poplar (Populus trichocarpa x deltoides) leaves to methyl jasmonate treatment over a 24 hour time course. Experiments were conducted using clonal trees under greenhouse conditions at the University of British Columbia. We used the 15.5K poplar cDNA microarray platform previously described by Ralph et al. (Molecular Ecology 2006, 15:1275-1297). Differentially expressed genes were determined using three criteria: fold-change between methyl jasmonate-treated and tween-treated control leaves > 1.5-fold, P value < 0.05 and Q value < 0.05. This study identified > 1,000 differentially expressed genes in response to methyl jasmonate treatment. A factorial hybridization design was chosen to assess gene expression between tween-treated control leaves, and leaves subjected to methyl jasmonate treatment. For each tree, all but the lowest five mature leaves were covered with a light-weight plastic bag and then sprayed with either methyl jasmonate or tween, the solvent control. Leaves were harvested 2, 6 or 24 hours after the initiation of each treatment and total RNA was individually isolated from each tree. For each treatment and time point, equal amounts of total RNA were combined from each of the five biological replicate trees prior to cDNA microarray analysis. A total of 18 hybridizations were performed to directly compare total RNA from methyl jasmonate-treated and tween-treated control leaves at each time point, as well as among methyl jasmonate-treated leaves across time points, with dye balance.