mnd mutants. TILLING mutants (b) with a premature stop codon within the MND genes show a significantly faster leaf initiation compared to the wildtype (a). mnd mutants in the same genetic background (cv. Kristina) with a single amino acid change (c), a complete gene deletion (d), and a premature stop codon (e). The type of mutation did not affect the severity of the mnd phenotype under greenhouse conditions. The complete growth stature (left) and a single isolated tiller (right) is shown for each plant in (c, d, and e).