The grapevine kinome: annotation, classification and expression patterns in developmental processes and stress responses

Abstract

Genetics: Mapping molecular switches in grape A comprehensive map of all the protein kinases (PKs) in grape is now available. PKs switch other proteins on or off by adding or removing a phosphate group. They regulate many cellular processes, coordinate plant growth, and trigger responses to various stresses. However, the number, relationships, and functions of PKs remain uncharacterized in most plants. Zong-Ming Cheng at Nanjing Agricultural University and the University of Tennessee mapped all the PKs in grape. Using the most up-to-date version of the genome, Cheng and coworkers identified over 1000 PKs, traced their evolutionary relationships, and identified which PKs are active in key growth phases. They also identified many PKs involved in response to stresses such as heat and drought. These results may help to improve stress tolerance in one of the world’s most economically important fruits.