Loci detected as being associated with PUE in experiments 1 and 2.

aInterval size estimate base on linkage blocks present at respective locus (supplementary S5 Fig) bAt each PUE peak we examined whether variation for root or shoot biomass contributed over-proportionally to peak significance. cResult of an analysis including only accessions of the indica subspecies (n = 65). The significance level decreased to 6.2E-04 for the analysis across subpopulations. TrJ = tropical japonica. ‘nd’ signifies ‘not detected’ Loci detected as being associated with PUE in experiments 1 and 2.