Sympoventuriaceae Y. Zhang ter, C.L. Schoch & K.D. Hyde, in Zhang, Crous, Schoch, Bahkali, Guo & Hyde, Fungal Diversity 51(1): 255 (2011)

Index Fungorum number: IF563117;

Sympoventuriaceae was introduced by Zhang et al. (2011) to accommodate Sympoventuria as the type. The species in this family are characterized by immersed, subglobose ascomata that are black, papillate and ostiolate, septate, anastomosing pseudoparaphyses, that are constricted at the septa and extending above the asci, 8-spored, bitunicate, fissitunicate, subcylindrical, pedicellate asci and hyaline, fusoid-ellipsoidal ascospores, constricted at the median septum (Zhang et al. 2011, Tibpromma et al. 2018). Most species in Sympoventuriaceae play vital roles as both saprobes and pathogens of plants, and animals and have been reported from different environments, such as soil, hot springs, industrial effluents, terrestrial and aquatic habitats (Samerpitak et al. 2014, Tibpromma et al. 2018, Zhang et al. 2019). Seven genera are accepted in Sympoventuriaceae.

Phylogram generated from maximum likelihood analysis based on combined LSU, SSU and RPB2 sequence data. Fifty strains are included in the combined analyses which comprised 2989 characters (868 characters for LSU, 1027 characters for SSU, 1094 characters for RPB2) after alignment. The GTR+I+R was applied as the evolutionary model for all the gene regions. Tree topology of the maximum likelihood analysis is similar to the Bayesian analysis. The best RaxML tree with a final likelihood value of -12068.262814 is presented. Estimated base frequencies were as follows: A = 0.255633, C = 0.224040, G = 0.291498, T = 0.228829; substitution rates AC = 1.259733, AG = 3.035194, AT = 1.574956, CG = 1.189243, CT = 6.856152, GT = 1.000000; gamma distribution shape parameter a = 0.525657. Bootstrap support values for ML greater than 75% and Bayesian posterior probabilities greater than 0.95 are given near nodes respectively. The tree is rooted with Phaeotrichum benjaminii (CBS 541.72) and Trichodelitschia bisporula (CBS 262. 69). Ex-type strains are in bold and black. The newly generated sequences are indicated in yellow.