Proteomics research on forest trees, the most recalcitrant and orphan plant species

► Molecular studies in trees are almost insignificant if compared with herbaceous plant species. ► Proteomics technology approaches have been recently incorporated to forest tree research. ► Forest tree proteomics combines the difficulty of both woody plants and proteins as experimental system and molecules of study, respectively. ► Proteomics research in woody plants is limited to a reduced number of genera, including Pinus, Picea, Populus, Eucalyptus, and Fagus.