Fig. 3.

MapMan analysis of root hair-preferentially expressed genes. Cell Function overview analyzed with 409 genes. Enzyme family (81 genes), signaling transduction (45), and transport (29) were most abundant, as shown with red boxes. Small boxes in overview indicate root hair-specific genes. For enzyme families, peroxidases (13 genes), cytochrome P450 (12), glutathione S transferase (12), UDP glycosyltransferases (11), and other classes (33) were identified. Among 45 genes involved in signaling function, 31 loci encode receptor-like kinases and 14 are in other classes. For transport, 8 genes encode ABC transporters; 8 are involved in uptake of nitrogen sources such as nitrate, peptides, and amino acids; and 13 are in other classes. Detailed information about MapMan overview is shown in Additional file 2: Table S3