Significant correlations between lactic acid bacterial OTUs (genus level) found on hypogeous organs (roots), epigeous organs (leaves and spikes), and processed wheat (grain, chaff, bran, and flour) of Odisseo and Saragolla. Hypogeous and epigeous organs were analyzed at the tillering, stem elongation, booting, flowering, milk development, and physiological maturity stages. The colors of the scale bar denote the nature of the correlation, with 1 indicating a perfectly positive correlation (red) and −1 indicating a perfectly negative correlation (green) between two microbial orders, families, or genera. Only significant correlations (FDR < 0.05) are shown.