show Abstracthide AbstractTo reveal the expression of HD-Zip genes in different tissues of cassava, samples from leaf (90 days after planting), stem (90 days after planting), early storage root (ESR, 90 days after planting), middle storage root (MSR, 150 days after planting) and last storage root (LSR, 210 days after planting) were collected for RNA-seq analysis. In addition, their expression was also examined in folded leaf (FL), full expanded leaf (FEL) and bottom leaf (BL), as well as root (RT) at 0, 3, 24 h after the treatment of PEG 6000. Overall design: Examination of gene expression in different tissues of three genotypes, or in leaves and root in response to PEG treatment in cassava