Phylogenetic relationships among multi-locus genotypes of G. intraradices. The neighbour-network using uncorrected p distance showed reticulate phylogenetic branching among a core set of genotypes. Substitutions and indel mutations were given equal weight in the analysis. Bootstrap support for branches above 90% is indicated in % of 1000 replicates. Roman numerals represent the different genotypes from one field (I–XI and XIII–XVIIII) and DAOM181602 (XII).