Fig. 2

Representative results from gel electrophoresis analysis of ITS2 gene from five different Chestnut rose samples extracted by four methods. C1 Sample Group (lanes 1-4), C2 Sample Group (lanes 5-8), C3 Sample Group (lanes 9-12), C4 Sample Group (lanes 13-16), C5 Sample Group (lanes 17-20), Blank (lanes 21-22); MC (lane 1, 5, 9, 13, 17), PG (lane 2, 6, 10, 14, 18), MPG (lane 3, 7, 11, 15, 19), IPF (lane 4, 8, 12, 16, 20), (MC: Modified CTAB method, PG: Plant Genomic DNA Kit, MPG: Magnetic Plant Genomic DNA Kit, IPF: isopropyl alcohol precipitation combined with Processed Food DNA Extraction Kit); M: DL500 DNA Marker