Figure 7.
GMMs induced in P-limited spx4-1 and pho2-1 shoots are associated with classical acclimation responses as well as plant development. A, GO terms enriched in the 342 GMMs induced by Pi withdrawal in both spx4-1 (514 misregulated + 31 ancillary) and pho2-1 (414 misregulated + 111 ancillary; 63% overlap in B) mutants are associated with classical acclimation processes such as ion, amino acid, and lipid transport, flavonoid biosynthesis, and jasmonic acid response. There is a strong association with transcriptional regulation and development. Shown in dark red are genes differentially expressed in both phr1 alleles. B, Overlap of GMMs in P-limited versus P-replete shoots of spx4-1, pho2-1, and phr1. Misregulated and ancillary GMMs for each mutant are listed in Supplemental Data Set S4.