Lr1-mediated leaf rust resistance pathways of transgenic wheat lines

ABSTRACT: The wheat gene Lr1 imparts resistance to certain races of the leaf rust pathogen Puccinia triticina. However, the biological basis underlying the complex resistance mechanisms remains largely unknown. Gene expression profiling analyses using the Affymetrix GeneChipM-BM-. Wheat Genome Array were performed with six independent Lr1 transgenic lines sampled before inoculation (0h) and at 6 and 24 h after inoculation with the avirulent P. triticina race CCDS. For the 6 and 24 h time points, 3M-BM- 384 probe sets corresponding to 2M-BM- 978 transcripts were differentially expressed as compared to the plants before inoculation. Genes involved in defence signalling were triggered as early as 6 h post inoculation (HPI) and included COI1, the primary component of jasmonic acid signalling. By 24 HPI,

ORGANISM(S): Triticum aestivum

SUBMITTER: Sylvie Cloutier 

PROVIDER: E-GEOD-32151 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress