Expression profiles of seven maize <i>ZmNF-YA</i> genes and localization and transcriptional activity of ZmNF-YA proteins.

<p>(A) <i>ZmNF-YA</i> expression patterns in maize tissues. Values represent the means of normalized signal reads. Error bars represent standard errors for three independent normalized signal values. (B) Localization of ZmNF-YA:GFP fusion proteins in maize mesophyll cells. Blue: nucleus stained with Hoechst33342; Green: ZmNF-YA:GFP fluorescence. Cambridge blue: merged images. (C) Transcriptional activation by ZmNF-YAs in a yeast two-hybrid system. Negative control: pAS2 vector. Positive control: ZmNF-YB.