Fig. 5From: Genome-wide identification and expression analysis of the NRT genes in Ginkgo biloba under nitrate treatment reveal the potential roles during calluses browningCallus browning and transcriptional expression of GbNRTs in Ginkgo under different nitrate treatments. A-C Calluses induced from zygotic embryos under different nitrate treatments for 17 days. D-F Calluses induced from zygotic embryos under different nitrate treatments for 26 days. G Browning rate of Ginkgo callus under nitrate treatments. Callus browning was evaluated 26 days after treatments. Data are represented as mean ± SD (n = 30, three biological replicates). Results were analyzed using one-way ANOVA for each treatment (* p < 0.05, ** p < 0.01). H-I Heatmap of relative expression of 55 GbNRTs under nitrate treatments via RNA-seq. H IB GbNRTs, I PB GbNRTsBack to article page