Fig. 5

Expression profiles of the Persian walnut NAC genes. a Hierarchical clustering of expression profiles of 14 Persian walnut NAC genes in 12 samples including F, M, L, and H represents female flower, male flower, leaves, and hull as 3 biological replicates. b The heatmap exhibits the ratio of the expression levels of 12 NAC genes in five developmental stages; 1, 2, 3, 4, and 5 represent different stages of Persian walnut flower. c Expression analysis of 3 JrNACs in three representative samples by qRT-PCR. Data were normalized to the β-actin gene, and vertical bars indicate standard deviation