Fig. 4From: Comparative transcriptomics and eQTL mapping of response to Melampsora americana in selected Salix purpurea F2 progenyeQTL mapping by time points. A 42 h post inoculation (HPI) B 66 HPI. For both time points, SNPs are sorted by chromosome across the x-axis. The y-axis of the top panels represents genes mapped to chromosomes. The y-axis of the bottom panels indicates eQTL frequency. The red line indicates the threshold for hotspots, set at 14 eQTLBack to article page