Relative abundance of epiphytic (A and C) and endophytic (B and D) Firmicutes genera found in hypogeous organs (roots) (A and B), epigeous organs (leaves and spikes), and processed wheat (grain, bran, and flour) (C and D) of Odisseo. Hypogeous and epigeous organs were analyzed at the tillering, stem elongation, booting, flowering, milk development, and physiological maturity stages.