Selection of Time Points for Transcriptional Analysis of M0171>>bdl Embryos.
(A) to (D) Embryos from crosses between M0171 and wild type [(A) and (C)] or M0171 and UAS-bdl [(B) and (D)] prepared 72 h [(A) and (B)] or 96 h after pollination [(C) and (D)]. GFP expression reflects the activity of the M0171 enhancer trap, which drives the expression of GAL4:VP16, which in turn activates the linked UAS-erGFP gene. Images show overlay of GFP and cell wall (counterstained with Renaissance RS2200-magenta) signals. Scale bar represents 10 μm in all panels. Arrowheads in (B) and (D) indicate aberrant cell divisions in suspensor cells.
(E) UpSet plot showing overlap between differentially expressed genes (up- or downregulated relative to wild type) in M0171>>bdl embryos at 72 h and 96 h after pollination. Numbers indicate the number of common genes in each comparison.