Project description:Hybridization to Affymetrix tiling array Ath 1.0R performed using gDNA from Arabidopsis arenosa var. Care-1, Arabidopsis thaliana var 4x Ler, Arabidopsis suecica var. Sue-1, and F1 hybrids between A. thaliana var 4x Ler and A. arenosa var. Care-1
Project description:Hybrid matings between A. thaliana and A. arenosa result in post zygotic seed lethality resulting in hybridization barrier between the two species. This barrier can be overcome to a large degree by increasing the genome dosage of the maternal genome (i.e. A. thaliana) in a cross between the two species. In this experiment we assayed the transcriptome of an incompatible cross (2x At x 2x Aa) with high seed lethality and a compatible cross (4x At x 2x Aa) using silique tissue at 5 days after pollination. We used microarrays to identify dosage responsive gene in interspecies hybridization Keywords: differential expression