Fig 1.

Relationship between copy numbers (CN) of AM fungal nrLSU and mtLSU in the roots of medic. The mtLSU copy numbers were determined by the universal assay. Each point represents one root sample. The equation of the linear regression, R², and significance (***, P < 0.001; **, P < 0.01) are given for each inoculation treatment. Open circles with dotted line, isolate PH5; open triangles with dashed line, isolate Chomutov (CH); closed squares with full line, mixed inoculation with both isolates.