seedlings were transferred from solid half-strength MS plates to liquid
half-strength MS media (supplemented with 1% sucrose) for 5 days before
harvest and immediately frozen in liquid N2. Total RNA
was extracted with NuceloSpin RNA Plant and Fungi kit (Macherey-Nagel).
cDNA was synthesized using RevertAid RT reverse transcription kit
(Thermo Fisher). Quantitative PCR reactions were conducted with the
CFX384 real-time system (Bio-Rad) and the SsoAdvanced Universal SYBR
Green Supermix (Bio-Rad) using the primers listed in
normalize relative expression levels of all tested genes. Relative
expression was calculated using the CFX Maestro software (Bio-Rad).