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Transcription profiluing of Arabidopsis - probing gene misregulation in bodyguard, lacerata and fiddlehead mutants

ABSTRACT: Although bodyguard (bdg), lacerata (lcr) and fiddlehead (fdh) mutations affect three unrelated genes, they trigger similar effects, i.e. ectopic organ fusion, increase of cuticle permeability. After performing cutin and wax analyses on these Arabidopsis thaliana mutants, which did not coincide with the putative enzyme functions, we hypothesised that these mutations trigger a complex response which may be visible at the transcriptional level. This analysis revealed that major changes in gene regulation are taking place in bodyguard (bdg), lacerata (lcr) and fiddlehead (fdh) mutants, massively affecting genes associated with lipid, cell wall and intracellular homeostasis but also with pathogen resistance. Experiment Overall Design: Plants carrying a stable allele of the bodyguard (bdg), lacerata (lcr) and fiddlehead (fdh) mutations, respectively, were grown on soil in parallel to wild type Columbia plants and under controlled growth conditions. Trays were periodically shifted to avoid any position effect and, to increase representativeness of the samples, each sample contains leaf tissue from 15 plants.

ORGANISM(S): Arabidopsis thaliana

SUBMITTER: Derry Voisin 

PROVIDER: E-GEOD-15105 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Publications

Dissection of the complex phenotype in cuticular mutants of Arabidopsis reveals a role of SERRATE as a mediator.

Voisin Derry D   Nawrath Christiane C   Kurdyukov Sergey S   Franke Rochus B RB   Reina-Pinto José J JJ   Efremova Nadia N   Will Isa I   Schreiber Lukas L   Yephremov Alexander A  

PLoS genetics 20091030 10

Mutations in LACERATA (LCR), FIDDLEHEAD (FDH), and BODYGUARD (BDG) cause a complex developmental syndrome that is consistent with an important role for these Arabidopsis genes in cuticle biogenesis. The genesis of their pleiotropic phenotypes is, however, poorly understood. We provide evidence that neither distorted depositions of cutin, nor deficiencies in the chemical composition of cuticular lipids, account for these features, instead suggesting that the mutants alleviate the functional disor  ...[more]

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