NASCArrays Information at The BAR

Welcome to NASCArrays information at the BAR. This page hosts meta-information from the NASCArrays service (2002-2013). This information was parsed from text files available on the NASCArrays site. NASCArrays data is on iPlant server. To download experiment data from iPlant, please click on the experiment number. To download the CEL files, please click on the ftp link.

Title:Mechanisms of DNA double strand break repair in Arabidopsis non-homologous end joining mutants
Description:The proposal aims to characterise the pathways of DSB repair and recombination in Arabidopsis with the main focus of this research being the NHEJ pathway of illegitimate recombination. We will build on our expertise and resources in the field of DSB repair in plants, using the Arabidopsis NHEJ mutant atku80 which is an excellent model system for the study of DSB repair in higher eukaryotes (West et al., 2002 Plant J. 31, 517-28). Comparison of the transcriptome in NHEJ mutant and wild type plants under different experimental conditions will identify novel candidate genes involved in DNA DSB repair or damage signalling pathways.We will conduct 4 separate experiments on Arabidopsis seedlings grown on 0.5 MS media: the first will be a control consisting of Wassilewskija (WS-2) plants grown under standard conditions. In the second experiment WS plants will be exposed to the chemotherapeutic agent bleomycin (1 microgram per ml). This agent has been shown to cause both single and double strand breaks in the genome of Arabidopsis seedlings (Menke et al., 2001 Mut. Res. 493, 87-93). This agent is used in preference to gamma irradiation, which causes high levels of oxidative damage to cellular components. These experiments will characterise for the first time the transcriptional responses of Arabidopsis cells to the specific induction of DNA strand breaks. The transcript profile will also be determined in untreated atku80 mutants. This experiment will identify the components of novel and previously characterised DNA repair pathways up regulated in the mutant background. Finally, transcript analysis of bleomycin treated atku80 mutants and comparison with untreated mutant plants and both untreated and treated WS plants will identify novel putative DSB repair genes up regulated in response to genotoxic stress in the absence of a Ku80 mediated DSB repair pathway.The results of these studies will provide new and important information which will be instrumental in identifying novel genes and pathways involved in DNA repair and genome stability in plants and help elucidate the fundamental differences that exist between animal and plant DSB repair processes.
ftp Link:ftp Link

Slide Information:
Slide IDSlide NameGenetic BackgroundTissueStock CodeCel File
West_A-1-WestC-wsu_SLD528whole plant N1601CW001_ATH1_A1.1-WestC-wsu.CEL
West_A-2-WestC-wsb_SLD529whole plant N1601CW001_ATH1_A1.2-WestC-wsb.CEL
West_A-3-WestC-kuu_SLD530ws-2whole plant WestCchanged3.cel
West_A-4-WestC-kub_SLD531ws-2whole plant WestCchanged3.cel