Project description:Purified meiocytes from Col, Bur and taf4b Arabidopsis thaliana plants were extracted as previously described (Walker at al, 2018 Nat. Genet.), and cDNA used to produce libraries.
Project description:We performed transcriptome and ribosome immunoprecipitation studies of transgenic Arabidopsis (Arabidopsis thaliana) Columbia seeds expressing a His6FLAG-tagged version of the ribosomal large subunit protein L18B (35S:HF-RPL18B)
Project description:The aim of this study was to analyze the impact of autotetraploidy on gene expression in Arabidopsis thaliana by comparing diploid versus tetraploid transcriptomes. In particular, this included the comparison of the transcriptome of different tetraploid A. thaliana ecotypes (Col-0 vs. Ler-0). The study was extended to address further aspects. One was the comparison of the transcriptomes in subsequent generations. This intended to obtain information on the genome wide stability of autotetraploid gene expression. Another line of work compared the transcriptomes of different diploid vs. tetraploid tissues. This aimed to investigate whether particular gene groups are specifically affected during the development of A. thaliana autotetraploids. Samples 1-8: Arabidopsis thaliana Col-0 tetraploid transcriptome. Transcriptional profiling and comparison of diploid vs. tetraploid Col-0 seedlings. The experiment was carried out with pedigree of independently generated and assessed tetraploid Col-0 lines. Samples 9-12: Arabidopsis thaliana Ler-0 tetraploid transcriptome. Transcriptional profiling and comparison of diploid vs. tetraploid Ler-0 seedlings. The experiment was carried out with pedigree of independently generated and assessed tetraploid Ler-0 lines. Samples 13-24: Arabidopsis thaliana Col-0 tetraploid transcriptome. Transcriptional profiling and comparison of diploid vs. tetraploid Col-0 leaves (6th - 8th). The experiment was carried out with pedigree of independently generated and assessed tetraploid Col-0 lines. Samples 25-32: Arabidopsis thaliana Ler-0 tetraploid transcriptome. Transcriptional profiling and comparison of diploid vs. tetraploid Ler-0 leaves (6th - 8th). The experiment was carried out with pedigree of independently generated and assessed tetraploid Ler-0 lines. Samples 33-36: Arabidopsis thaliana Ler-0 tetraploid transcriptome. Transcriptional profiling and comparison of tetraploid vs. tetraploid Ler-0 seedlings from the second (F2) and third (F3) generation after induction, respectively. The experiment was carried out with pedigree of independently generated and assessed tetraploid Ler-0 lines. Samples 37-40: Arabidopsis thaliana Col-0 tetraploid transcriptome. Transcriptional profiling and comparison of tetraploid vs. tetraploid Col-0 seedlings from the second (F2) and third (F3) generation after induction, respectively. The experiment was carried out with pedigree of independently generated and assessed tetraploid Col-0 lines. Samples 41-44: Arabidopsis thaliana Col-0/Ler-0 diploid transcriptome. Transcriptional profiling and comparison of diploid Col-0 vs. diploid Ler-0 seedlings. The experiment was carried out with pedigree of esrablished lines. Samples 45-48: Arabidopsis thaliana Col-0/Ler-0 tetraploid transcriptome. Transcriptional profiling and comparison of tetraploid Col-0 vs tetraploid Ler-0 seedlings. The experiment was carried out with pedigree of independently generated and assessed tetraploid Col-0 and Ler-0 lines.
Project description:Expression analysis was performed with two TDNA insertion mutants of taf4b i.e; taf4bprm (TDNA insertion in promoter region) and taf4bint (TDNA insertion in intronic region), Taf4b overexpression lines, taf4bprmcpr5 double mutant lines (Double mutant was generated by crossing taf4bprm with cpr5) and Col-0 in normal condition as well as with taf4bprm mutant and Col-0 infected with fungi AB (Alternaria brassicicola) and bacteria ES4 (Pseudomonas syringae pv.maculicola ES4326 ) in different perspectives. Affymatrix expression analysis was executed to provide mechanistic details of regulation of genes by Taf4b in plants.
Project description:Genome-wide target genes of PPD2 were identified through ChIP-seq on Arabidopsis cell cultures. For ChIP-seq, PPD2 was fused to the GSyellow TAP tag and expressed from the 35S promoter. The p35S:PPD2-GSyellow construct was transformed into Arabidopsis thaliana PSB-D cell culture. ChIP was performed using anti-GFP antibody (abcam290).
Project description:GLABRA3 (GL3) and GLABRA1 (GL1) function as selector genes that control the differentiation of a group of protodermal cells into trichomes in Arabidopsis thaliana. We performed genome-wide location (ChIP-chip) analyses by using transgenic Arabidopsis plants carrying GL3-YFP or GL1-YFP-MYC1 mini genes. These analyses identified statistically significant enriched DNA associated with GL1 and GL3. A total ~540 and ~700 genes were identified as located proximal and downstream to the GL1 and GL3 binding regions, respectively. Keywords: ChIP-chip
Project description:Comparison of expression differences between Col-0 Arabidopsis thaliana and transgenic plants in the same background carrying three different Fusarium oxysporum effector genes