Figure 1From: Extreme specificity of NCR gene expression in Medicago truncatulaHeat map of NCR gene expression in the MtGEA compendium. The heat map shows the expression of 334 NCR genes (rows) in 267 experimental conditions (columns). Experiments are ordered as indicated above the columns. The color scale bar indicates the expression level from background level (blue) to maximum level (yellow). The red arrowhead indicates the mycorrhizal sample that is contaminated with nodules. The green arrowheads locate the NCR genes with relaxed specificity; from top to down: NCR247, NCR235, NCR122, NCR218 and NCR077. The dataset used for the generation of the heat map is provided in Additional file 1: Table S1.Back to article page