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Semiquantitative RT-PCR Analysis of Expression of Root Patterning Genes in the Wild-Type and the Double Mutant nrp1-1 nrp2-1 Roots.
RNA was isolated from roots collected from 6-d-old (A) and 12-d-old (B) seedlings. The increasing number of PCR cycles is given at the top of lanes, and the basal number of cycles (x) is given for each gene at the left of the panels. mut, mutant.
