Start Date: Oct 01, 2010
End Date: May 21, 2013
Transcript profiling will be used to identify genes associated with environmental stress, fire blight resistance, and susceptibility, while proteomic approaches will be used to better understand the relationship between gene expression and cognate protein levels. RNAi-induced gene silencing will be used to elucidate the role of specific candidate genes in resistance and adaptation. The ability to use genetically-engineered rootstocks of apple for scion trait modification will be explored by investigating graft-transmissible gene silencing. The use of floral-specific promoters to confine and regulate the expression of dehydrin genes (responsible for cold and dehydration tolerance) to flowers of fruit crops in order to improve frost tolerance will also be investigated.