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tnp/pkl double mutants show adventitious shooting. A, Representative tnp/pkl seedlings alongside parental pkl and tnp seedlings 5 d postgermination. Magnification ×2. B, Primary root tips of tnp/pkl and pkl seedlings 5 d postgermination. Magnification ×4. C, Adventitious shooting from a tnp/pkl hypocotyl (arrow) 14 d postgermination. Magnification ×2. D, Shooting tissue 9 d postexcision (23 d postgermination). Magnification ×4.
