Figure 1
From: Transcriptome analysis and phenotyping of walnut seedling roots under nitrogen stresses

Volcano plots of DEGs in the roots of walnut seedlings under nitrogen starvation (a) and excess (b). Red dots indicate genes upregulated in the treatment group compared to control, and blue dots indicate genes downregulated in the treatment group relative to control. (c) Numbers of up- and downregulated genes under nitrogen starvation versus control (L-vs-EL) and under nitrogen excess versus control (L-vs-H). Red bar: number of upregulated genes; blue bar: number of downregulated genes.