<i>TUN(RNAi)</i> lines show <i>fer</i>-like vegetative dwarf phenotype.

<p>(A–D) Plant size of 30-d-old seedlings of wild-type (A), <i>fer-2/fer-2</i> (B), <i>TUN(RNAi)</i> (C), and <i>EVN(RNAi)</i> lines (D). Asterisks indicate <i>TUN(RNAi)</i> seedlings, that accumulate athocyanins and degenerate without further growth. (E–H) Plant size of adult wild-type (E), <i>fer-2/fer-2</i> (F), <i>TUN(RNAi)</i> (G), and <i>EVN(RNAi)</i> (H) plants. (F) Left plant is at the same developmental stage as wild-type, <i>TUN(RNAi)</i>, and <i>EVN(RNAi)</i> individuals. Scale bars: 1 cm. All lines are in the Col-0 background.