Fig. 7.

Simplified diagram showing the expression patterns of genes involved in storage-product synthesis in the developing coffee (Coffea arabica) seed. The upper part of the diagram highlights the temporal expression patterns of genes related to the biochemical specificities of the coffee seed, such as its very high chlorogenic acid (CGA) content, and its balanced palmitic : PUFA ratio. The lower part of the diagram highlights the developmental processes encountered both in the coffee seed and in exalbuminous seeds, as described in the literature. These shared metabolic features are further interpreted as reflecting a transfer of functions from perisperm to endosperm, and from endosperm to embryo in the course of dicot evolution.