Figure 2.

Comparison of DNA yield and quality across different isolation methods. Genomic DNA extracted from red spruce needles using our MagAttract-based protocol (N1–N8), DNeasy spin columns (S1–S8), and CTAB protocol (C1–C8). M – GeneRuler 100 bp DNA Ladder Plus (MBI Fermentas). Five microliters of each sample were loaded onto 1.5% agarose gel containing SYBR Safe DNA Gel Stain (Invitrogen).