Figure 1
From: Identification of the vascular plants of Churchill, Manitoba, using a DNA barcode library
Sequencing success (%) for tissue samples preserved in silica-gel and collected from herbarium specimens (mean age 20 years). Green: plant tissue preserved in silica-gel. Olive: plant tissue collected from herbarium specimens. rbc L: one round of PCR with the primers rbcLa-F/rbcLa-R. mat K: two consequent rounds of PCR with the primers matK-1RKIM-f/matK-3FKIM-r and matK_390f/matK_1326r (for the DNA samples failed in the first round). ITS2: one round of PCR with the primers ITS-S2F/ITS4.