Core promoter CArG-box controls expression of <i>MPF2-like</i> genes in sepals.

<p><b>A</b>) Confocal images of the stable expression of YFP gene in sepals of transgenic <i>Arabidopsis</i>. The YFP is fused with <i>MPF2-like</i> (<i>WSA206</i>, <i>WSB206</i> and <i>TAB201</i>) short promoters containing normal and mutated CArG-box. PS, promoter short; I, <i>MPF2-like</i> large 1^st intron; * CArG-box; ⊗, ARE; M, mutated; ⊗I, introduced CArG-box; I⊗, introduced ARE. Arrow points to expression of the YFP in the nucleus. The scale bar = 30 µm. <b>B</b>) Photographs showing expression of GUS reporter gene in the inflorescence of transgenic <i>Arabidopsis</i> plants transformed with <i>MPF2-like</i> short promoter:GUS constructs with normal and mutated version of core promoter CArG-box. PS, promoter short; I, <i>MPF2-like</i> large 1^st intron; * CArG-box; *, CArG-box; ⊗, ARE; M, mutated; *I, introduced CArG-box; I⊗, introduced ARE. The scale bar is equal to 4 mm.