Fig. 6.

Hierarchical clustering of expression patterns of differentially regulated proteins. Each column represents one 2-D gel prepared from samples of 0 mM NaCl- (yellow), 100 mM NaCl- (orange) and 150 mM NaCl- (red) treated plants of genotypes Steptoe (circles) and Morex (squares) in three biological replicates per treatment. Rows display the abundance of the protein spot on 2-D gels using colour coding based on a relative scale (–2.31 to +3.13), as derived from normalized spot volumes. Spot numbers and protein names are listed for each row. Groups of proteins with similar biological function are highlighted in grey.