GATA gene expression is cross regulated in gnc gnl mutants and GNLox transgenic lines. A, Result from qRT-PCR analyses of the GATA genes GATA15, GATA16, GATA17, and GATA17L in the gnc gnl mutant and GNLox background. Gene expression data were normalized to the transcript abundance detected in the Col-0 wild type. B, Read coverage over the six LLM-domain B-GATA genes and 30-kb upstream region after chromatin immunoprecipitation of GNL:HA from a pGNL::GNL:HA gnc gnl transgenic line (blue line) and the gnc gnl mutant (red line) followed by next-generation sequencing. GATA gene models and, where applicable, the gene models of the neighboring genes are indicated in the figure, different GATA-sequence-containing motifs are indicated below the gene models. C, Result from qRT-PCR analyses for selected amplicons (gray boxes) upstream from the GNC, GNL, and GATA17 gene promoters after chromatin immunoprecipitation of GNL:HA from a pGNL::GNL:HA gnc gnl transgenic line and the gnc gnl mutant. Student’s t tests: * P ≤ 0.05; ** P ≤ 0.01; *** P ≤ 0.001; n.s. = not significant.