Lysed samples can be stored for 6 months. RNA was extracted using the automated HTP procedure from lysed seedlings in RA1 buffer immediately (fresh, n = 96) or after being frozen at -20°C for 2 days (n = 96) or 6 months (n = 96). Data are presented as: A. The mean RNA concentration (ng/μl) per well of a 96 well plate ± SD. B. NanoDrop spectrometry scans of three representative samples. C. Electropherograms from bioanalyzer analysis of the same three representative samples.