PIP — Brassica oleracea var. botrytis

Summary

BoPIP, the cauliflower gene on chromosome 3, encodes a prolyl iminopeptidase belonging to the peptidase S33 and AB hydrolase families, with aminopeptidase activity. In cauliflower, BoPIP is associated with pigmentation, regulation of anthocyanin and flavonoid anabolism, protein synthesis, and regeneration. It is linked to responses to metal, salt, cold, and thirst, and is localised to the cytosol, mitochondria, and secretory vesicles. The gene is also associated with photosynthetic rate and anthocyanin content. Studies of related genes in other species link the family to root hydraulic conductance, water transport, reduced pollen viability, and delayed post-stress growth, as well as to traits including drought tolerance, nitrogen and proline content, and root morphology.