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. 2010 Oct 18;107(44):18898–18902. doi: 10.1073/pnas.1009050107

Fig. 1.

Fig. 1.

Ectopic expression of forms of AG and FAR in Arabidopsis using the 35S promoter. (A) Expression of intact AG and FAR. In 35S::AG, stigmatic papillae and ovules develop on first whorl-converted carpeloid sepals (white arrows), and in both 35S::AG and 35S::FAR, petals are converted into stamens. (B) Alignment of AG, FAR, and PLE protein sequences around the K3 region. The red arrow points to the critical glutamine residue (Q173) in FAR that is absent in AG and PLE. (C) Ectopic expression of modified forms of FAR and AG. 35S::FAR-Q indicates a full-length FAR protein, lacking only Q173. The white arrow points to representative carpeloid structures. 35S::AG+Q and 35S::AG+R indicate a full-length AG protein with an insertion of either a glutamine (Q) or an arginine (R) at the position in K3 equivalent to Q173. Note that neither of these flowers shows the characteristic conversion of sepals to carpeloidy.