Figure 1From: Biases underlying species detection using fluorescent amplified-fragment length polymorphisms yielded from rootsInfluence of tissue and sample condition on DNA yield. For a tissue type (leaves: black bars, roots: white bars), means (± SE) labeled with different letters are significantly different at P < 0.05 based on Bonferroni post hoc tests. N = 5–6 for a Populus tremuloides and b N = 6 for Bromis inermis. Back to article page