Fig 7. Relative expression of Pinus monticola (A) and Pinus taeda (B) functional gene groups in response to individual Suillus species (Sa, Sg, Ss and Sd).

Gene expression in uninoculated P. taeda roots (“C” in Fig 7B) is also shown. Significance was determined using normalized read counts with FDR<0.05 using Benjamini-Hochberg test. Unique functional genes shared across all pairings are marked by an asterisk. Unique Pinus genes were further characterized by functional annotation (SI text A4).