Figure 4

Relatedness and categorization of TRFLP fragments present in young Zea plants grown on different substrates. Shown is data from plants grown on Mexican soil versus Canadian soil for: (A) Parviglumis, (B) Mixteco and (C) Pioneer 3751, based on Sørensen's similarity index of bacterial DNA fingerprints (16S rDNA TRFLP peaks). (D-I) Co-occurrence of 6FAM and Max500 labelled TRFLP peaks in different samples: Seed: TRFLP peaks in soil-grown plants that are shared with peaks present in seed; Plant on Sand: TRFLP peaks in soil-grown plants that are shared with peaks present in sand grown plants but not found in seeds; Soil or Plant on Soil: peaks present in soil grown plants, that are shared with the opposite soil and plants grown on the opposite soil, but not in seeds or in plants grown on sand; Same Soil Match Only: peaks present in soil grown plants, that are shared with the same soil the plant was grown on, but not in seeds, nor in plants grown on sand nor in plants grown on the opposite soil nor the opposite soil itself; No Match: peaks present in soil grown plants but not found in seeds, sand grown plants, opposite soil grown plants, or either soil. Pie charts D-F show fragment co-occurrence percentages for plants grown on Canadian soil and G-I on Mexican soil.