Figure 1.
Copy numbers for herbarium specimens and fresh tissues for:(A) plastid genes (B) mitochondrial genes (C) nuclear genes.
Values statistically different at 5% significance level in post-hoc tests are indicated by different letters (A or B).
Figure 2.
Copy number fold-reduction of plastid, mitochondrial and nuclear genes in herbarium specimens (A) after specimen preparation (fresh tissue/young herbarium ratio), and (B) after long-term herbarium storage (young/old herbarium ratio).
Values were not statistically different at 5% significance level.
Table 1.
Mean DNA yield, mean gene copy numbers, and DNA yield loss-corrected copy numbers for plastid, mitochondrial and nuclear DNA relative to fresh control.
Table 2.
Chi-square (χ2) tests of independence (at p≥0.05 level) on number of nucleotide substitutions observed in fresh and herbarium DNA.
Table 3.
Estimated (C→T/G→A) rate in herbarium plastid DNA during herbarium storage.