show Abstracthide AbstractTo study the influence of the MED30 subunit of Mediator complex in the flowering process of Arabidopsis thaliana, WT (Columbia) and an amiRNA line targeting MED30 and named amiMed30-2 Z3.2 were grown at 23ºC in long day photoperiod (16 hr light/8 hr dark) for 10 days under 100 µmoles m-2 seg-1 of white fluorescent light. Seedlings from three biological replicates were harvested 2 h prior to the start of the night period.