| AMF | Arbuscular mycorrhizal fungi |
| qRT-PCR | Quantitative real-time polymerase chain reaction |
| NJ | Neighbor-joining |
| Ks | The rate of synonymous substitutions |
| Ka | The rate of nonsynonymous substitutions |
| MYCS | Mycorrhizal transcription factor binding sequence |
| P1BS | PHR1 binding site |
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