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Phenotype of the cad-n1 mutant. (a) Seedlings at 10 months, homozygous Cad (left) and cad-n1 (right). (b and c) Stem sections from 7-month-old Cad (lower) and cad-n1 (upper) homozygotes unstained (b) and stained with Weisner reagent (c). (d) Wood chips from 12-year-old trees (homozygous Cad, left; cad-n1, right).
