Fig. 4: Light promotes phloem development but inhibits xylem development.

a, Visualization of vascular cells via UMAP during the de-etiolation process for merged data (top) and respective data of different radiation times (bottom). b, Transcript distribution of subtype markers. Colour bar, normalized UMI counts. c, Visualization of vascular system development along with pseudotime. d, Expression trends of candidate genes involved in light-induced vasculature development. Pr, procambium; DC, dividing Cell; Pa, parenchyma; PXy, protoxylem; Xy, xylem; SE, phloem sieve element; CC, phloem companion cell.