Fig. 1.

Phylogenetic relationships among the three sister phyla Glomeromycota, Mucoromycota and Mortierellomycota with Basidiobolus meristosporus as outgroup. (A) Testing support for three alternative phylogenetic relationships among the three sister phyla, based on all individual gene trees of 243 single copy orthologs (SCOs). Quartet support for the three topologies (T1-3) is summarized in the bar chart with the dashed line representing the expectation of hard polytomy. T1 corresponds to both the best ML topology and the ASTRAL topology illustrated in B. T2 and T3 correspond to alternative topologies obtained in ASTRAL. (B) Best maximum likelihood IQTREE phylogeny from a concatenated alignment of 243 SCOs shared at least among 50% of all forty-six taxa. Support values are shown above branches (bootstrap support from the ML analysis/local posterior probability/quartet support from the ASTRAL analysis). For details on the genomes representing taxa see Table S1