Correspondence analysis of the AM fungal community composition found in galls, the roots of M. incognita-infected plants, and the roots of uninfected plants. The eigenvalues of the x and y axes in the two-dimensional ordination diagram are as follows: 0.51 (first dimension) and 0.35 (second dimension). Small black circles represent the respective AMF sequence types, and triangles represent the experimental cases. Ovals drawn with solid, dotted, and dashed lines represent the distributions of AMF diversity in galls (G), the roots of noninfected plants (NIP), and the roots of M. incognita-infected plants (IP), respectively.