Bayesian 18S phylogeny based on 976 characters and isolated sequences of glomalean AM fungi from mycoheterophic ferns (Psilotum and Botrychium), Lycopodiaceae (Huperzia and Lycopodium) and angiosperms (Voyria, Voyriella, and Arachnitis). Bayesian posterior probabilities are indicated above the branch. Neighboring-joining and parsimony bootstrap values are also indicated above the branch when bootstrap support is greater than 50%. Phylotypes A–K correspond to those in Table . Horizontal bar Genetic distance. Accession numbers for sequences in GloBot1, GloLyc1, Arachnitis, Voyria, Voyriella, Soil Glomus 1, Soil Glomus 2, Soil Glomus 3, Cultured and Soil Glomus, B. virginianus 1-5, and Marchantia 1-2 can be found in ESM supplement 3
macrophylla (Fig. 3; Table 1).
nudum into 11 phylotypes (A–K) that are supported by ≥90% maximum
parsimony (MP) and neighbor joining (NJ) bootstrap values and
Bayesian posterior probability (BPP) values (Table 1;
Sequence affinity within the phylotypes ranges from 96 to 99.8%
nudum that group into four well-supported clades in Glomus A:
GloPsi1, GloPsi2, GloPsi3, and GloPsi4 (Fig. 3; Table 1).
GloLyc1 is a well-supported (>90% BPP, NJ, MP) and resolved
clade that includes four phylotypes previously isolated from seven
species of Huperzia and Lycopodium (Lycopodiaceae) collected from
the Páramos of Ecuador (Fig. 3, ESM Table S1).
2002) are dispersed throughout the Glomus A phylogeny
A similar pattern has been reported in Botrychium crenulatum,
Botrychium lanceolateum (Winther and Friedman 2007), and Huperzia
hypogeae (Winther and Friedman 2008), where the multiple phylotypes
recovered from photosynthetic sporophytes were restricted to the
same Glomus A clades (GloBot1 and GloLyc1) found in their
mycoheterotrophic life cycle phases (Fig. 3).
nudum sporophytes and/or photosynthetic angiosperms located in the
same pot (Fig. 3; Table 1).
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