Sporidesmiales Crous, Persoonia 40: 377 (2018)
MycoBank number: MB 825433; Index Fungorum number: IF 825433; Facesoffungi number: FoF 03356;
Sporidesmiales was introduced by Crous et al. (2018d) and presently only contains Sporidesmiaceae with a single genus. Taxa are saprobic on woody debris in terrestrial and aquatic habitats or mycoparasites of fungi. The divergence time for Sporidesmiales is estimated as 81 MYA (Fig. 2), which is evidence of family status but ranking it as an order may need revision following further study. Currently there is one family and one genus in this order (this paper).
Figure 2 – The maximum clade credibility (MCC) tree, using the same dataset from Fig. 1. This analysis was performed in BEAST v1.10.2. The crown age of Sordariomycetes was set with Normal distribution, mean = 250, SD = 30, with 97.5% of CI = 308.8 MYA, and crown age of Dothideomycetes with Normal distribution mean = 360, SD = 20, with 97.5% of CI = 399 MYA. The substitution models were selected based on jModeltest2.1.1; GTR+I+G for LSU, rpb2 and SSU, and TrN+I+G for tef1 (the model TrN is not available in BEAUti 1.10.2, thus we used TN93). Lognormal distribution of rates was used during the analyses with uncorrelated relaxed clock model. The Yule process tree prior was used to model the speciation of nodes in the topology with a randomly generated starting tree. The analyses were performed for 100 million generations, with sampling parameters every 10000 generations. The effective sample sizes were checked in Tracer v.1.6 and the acceptable values are higher than 200. The first 20% representing the burn-in phase were discarded and the remaining trees were combined in LogCombiner 1.10.2., summarized data and estimated in TreeAnnotator 1.10.2. Bars correspond to the 95% highest posterior density (HPD) intervals. The scale axis shows divergence times as millions of years ago (MYA).
Figure 2 – Continued.
Figure 2 – Continued.
Families