almost significantp = 0.051
The effect of rice genotype was almost significant for all indices (Figure 1 , p = 0.051).
The effect of rice genotype was almost significant for all indices (Figure 1 , p = 0.051).
The effect of rice genotype on pmoA copy number was marginally significant ( p = 0.055).
Although the mcrA copy number showed a trend for an increase in all rice genotypes under the influence of [CO 2 ] elevation, the rate of increase differed among the genotypes (a significant [CO 2 ] × rice genotype interaction, p < 0.01).
In Alphaproteobacteria, the families of Bradyrhizobiaceae (15.5–30.8%), Rhizobiaceae (5.6–15.2%), and Methylocystaceae (5.4–13.0%) were predominant (Figure 3B , Table S3 ); their relative abundance showed a decreasing trend by the [CO 2 ] elevation.