Journal: bioRxiv
Article Title: Cell-type aware regulatory landscapes governing monoterpene indole alkaloid biosynthesis in the medicinal plant Catharanthus roseus
doi: 10.1101/2024.04.23.590703
Figure Lengend Snippet: A. Gene expression heatmap of the MIA biosynthetic genes across overexpression treatments. Each row is a biosynthetic gene or transporter, ordered from upstream to downstream. Color scale represents scaled expression (z score). Combo: the combinatory treatment in which IDW1 and IDM1/2/3 are co-infiltrated. B. Mean separation plots showing expression levels of D4H and DAT (in units of transcripts per million) in the 0.4 OD treatments. Each data point is a biological replicate. Error bars represent average and standard error. Black × indicates average. C. Bar graph showing percentage of genes that are most highly expressed in the idioblast. Expressed genes: all 18,523 expressed genes in this single cell multiome dataset. MYC2-ORCA3: 3,378 differentially expressed genes that are upregulated in the MYC2-ORCA3 overexpression treatment. IDM1: 1,057 differentially expressed genes that are upregulated in the 0.4 OD overexpression IDM1 treatment. D. Gene expression heatmap of IDM1 metabolic regulon (see also Supplementary Table 11). Color scale shows the average scaled expression of each gene at each cell cluster. Dot size indicates the percentage of cells where a given gene is detected. The predicted cell type for each cell cluster is annotated by the color strip below the x-axis. Box highlights genes specifically expressed in the idioblast.
Article Snippet: We first isolated intact nuclei (Supplementary Fig. 1B-I) from mature C. roseus leaves and constructed replicated single cell multiome (RNA-seq and assay for transposase accessible chromatin followed by sequencing [ATAC-seq]) libraries using the 10x Genomics Multiome Kit (Supplementary Table 2).
Techniques: Gene Expression, Over Expression, Expressing, Stripping Membranes