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A large-scale comparison of transcriptome datasets from ten evolutionarily representative species identifies general patterns on the genomic evolution of various plant organs. Among various insights, the authors find that the origin of organ-specific gene families predate the origin of the organs themselves.
Microbes induce an immune response in plants that includes transcriptional changes and biosynthesis of defence molecules. Analysis of both transcriptome and metabolome output to multiple bacteria identifies a common non-self response to microorganisms.