Fig. 1From: Over-expression of poplar NAC15 gene enhances wood formation in transgenic tobaccoThe heatmap of differentially expressed 110 NAC genes in the three tissues of Populus simonii× P.nigra. The heatmap was drawn by Heatmapper (http://www.heatmapper.ca/expression/). Red and green colors indicate low and high expression, respectively. R1–3, S1–3 and L1–3 indicate roots, stems and leaves with three biological repeats, respectivelyBack to article page