DNA extraction from mature leaves of other plant species. DNA extraction from mature leaves of seventeen other plant species was done according to method 5 which proved to be the most efficient method selected from the methods described above. After the DNA precipitation with isopropanol, the pellet was dissolved in 150 µL of TE.
DNA evaluation. The analysis of DNA concentration and quality were based on the 260 nm/280 nm and 260/230 absorbance ratios using the spectrophotometer NanoDropTM (Thermo Scientific) according to manufacturer’s instructions. The yield of total DNA extracted from 50 mg fresh weight was reported. The variation in the efficiency of DNA extractions was analyzed using Statistix 8 (Analytical software 2003). Genomic DNA integrity was evaluated from the bands from 5 µL of total DNA on 1.5 % agarose gel electrophoresis.