Fig. 2

A heat-map showing the –log₁₀(P) profiles of the measured traits in the RIL/QTL population. Columns indicate the five Arabidopsis chromosomes in centiMorgans, ascending from left to right; rows indicate individual trait –log₁₀(P) profiles. A colour scale is used to indicate the QTL significance corresponding to the –log₁₀(P) score: gold, orange, and red represent a positive effect on the trait value from the Col allele; light, medium and dark blue represent a positive effect on the trait value from the Sha allele. +Pi and -Pi refer to phosphate sufficient and phosphate deficient treatments, respectively. DW = total rosette dry weight, PHO = leaf Pi concentration, PUE = phosphate use efficiency, IP6 = leaf phytate concentration, CIT = leaf citrate concentration, NIT = leaf nitrate concentration, and SUL = leaf sulphate concentration