Fig. 1. Genes involved in BIA biosynthesis in six tissues of the opium poppy.

Cellular localization of gene-expression activity (log₁₀ scale) in sieve elements (olive-green), laticifers (yellow), both sieve elements and laticifers (yellow with diagonal olive-green lines), and roots (red) is shown. Gene names are in blue text (aliases are in brackets) and their alkaloid products are in black text (final products are in bold). YC young capsule, MC mature capsule. Source data are provided as a Source Data file.