Project description:Col-0 floral stem was grafted on the msh1 mutant (Col-0/msh1); on the dcl2,3,4,msh1 quadruple mutant (Col-0/dcl2,3,4,msh1); on Col-0 (Col-0/Col-0). Seeds were collected from the grafted Col-0 scion after grafts were established. Seed coming from the graft then were grown on the peat mix, leaf tissue was collected at the bolting and used for the total RNA sequencing.
Project description:Using MethylC-Seq to provide single-base resolution of DNA methylation status in Ws background wild-type (WT), ape1l-1 (Ws background), arp-1 (Col-0 background) and zdp-1 (Col-0 background) mutants
Project description:Transcriptional profiling of Arabidopsis rossette leaves comparing WT Col-0 with a transgenic line overexpressing Ah24 gene from Amaranthus hypochondriacus.
Project description:Transcriptional profiling of Arabidopsis rossette leaves comparing WT Col-0 with a transgenic line overexpressing AhDGR gene from Amaranthus hypochondriacus.
Project description:Col-0 floral stem was grafted on the msh1 mutant (Col-0/msh1); on the dcl2,3,4,msh1 quadruple mutant (Col-0/dcl2,3,4,msh1); on Col-0 (Col-0/Col-0). Seeds were collected from the grafted Col-0 scion after grafts were established. Seed coming from the graft then were grown on the peat mix, leaf tissue was collected at the bolting and used for the bisulfite sequencing (methylome). Tissue from the msh1 mutant and dcl2,3,4,msh1 quadruple mutants used as rootstocks was similarly collected at the bolting stage and used for the bisulfite sequencing.
Project description:To investigate gene expression differences related to the regulation of stomatal aperture between two Arabidopsis accessions, Me-0 and tetraploid Col, we performed microarray analysis on guard cell protoplasts from these two accessions. We identified 1,777 probes as up-regulated and 1,706 probes as down-regulated differentially expressed genes (DEGs) in Me-0 compared with tetraploid Col (adjusted P-value < 0.001 and log 2 fold change of greater than 1 or less than -1). Using gene set analysis to functionally characterize DEGs, there were eight significant gene sets (at the level of P-value < 0.01) among the up-regulated genes and seven significant gene set among the down-regulated genes. Genes with the lowest P-value among the up-regulated genes were related to “plant-type cell wall loosening”, an essential step in guard cell swelling. Most of the down-regulated genes were related to the defense responses for immunity, hypoxia, and ozone, which also influence stomatal responses or gas exchange. We propose that these gene expression differences may cause the difference in stomatal aperture between Me-0 and tetraploid Col.
