Expression dynamics of the Galpha1 and Galpha2 genes encoding the alpha 1- and alpha 2-subunits of the G protein in pea roots and nodules at 1, 3, 5, 7, 9, 11, 13, 15, and 21 days after inoculation in relation to uninoculated variants (1d NI and 5d NI). Bars represent ± SEM. Two biological replicates were analyzed and the results of a representative repeat were shown in the graphs.