PP2A — Brassica oleracea var. botrytis

Summary

BoPP2A, a gene on cauliflower chromosome 2, encodes a protein with protein serine/threonine phosphatase activity, protein tyrosine phosphatase activator activity, cis-trans proline isomerase activity, and DNA-binding transcription factor activity, belonging to the PPA2-like and calcineurin-like phosphoprotein phosphatase families. It is associated with the regulation of abscisic acid anabolism, auxin polar transport, gibberellin response, sugar-mediated signalling, mitotic spindle organization, and responses to heat, cold, salinity, and bacteria. The gene is linked to traits including water use efficiency, flowering time, anthocyanin content, leaf senescence, seedling growth, root morphology, stomatal opening, and responses to cadmium, aluminum, and high temperature stress. Studies of related genes in other species connect the family to abscisic acid signalling, seed germination, dormancy, drought tolerance, and root meristem growth.