Togniniella Réblová, L. Mostert, W. Gams & Crous, Stud. Mycol. 50(2): 543 (2004)
MycoBank number: MB 500157; Index Fungorum number: IF 500157; Facesoffungi number: FoF 13015; 1 species with sequence data.
Type species – Togniniella microspora (Ellis & Everh.) Réblová
Notes – Togniniella has glabrous ascomata with branched ascogenous hyphae, paraphyses longer than asci and suballantoid ascospores. After re-examining the type material of T. acerosa, Réblová (2011) concluded that Togniniella microspora (synonym of Ceratostomella microspora) is identical to T. acerosa and accepted T. microspora as the only species in Togniniella. Réblová et al. (2004) and Réblová (2011) found that Togniniella constitutes an independent clade and is related to Calosphaeria. In this study, Flabellascus is closely related with this genus based on tub2-ITS-act– LSU analysis (Fig. 7).
Figure 7 – Phylogram generated from maximum likelihood analysis based on combined tub2, act, ITS and LSU sequence data of Calosphaeriales, Togniniales, Jobellisiales and Tirisporallales. One hundred and fifteen strains are included in the combined analyses which comprised 2296 characters (572 characters for tub2, 269 characters for act, 586 characters for ITS, 869 characters for LSU) after alignment. Three species of Ophiostomataceae are used as outgroup taxa. Single gene analyses were also carried out and the phylogenies were similar in topology and clade stability. The best RAxML tree with a final likelihood value of -29642.219830 is presented. Estimated base frequencies were as follows: A = 0.222849, C = 0.289953, G = 0.265413, T = 0.221786; substitution rates AC = 1.361161, AG = 3.471108, AT = 1.335451, CG = 1.139165, CT = 4.985065, GT = 1.000000; gamma distribution shape parameter a = 1.412987. Bootstrap support values for ML greater than 60% are given near the nodes. Ex-type strains are in bold. The newly generated sequences are indicated in blue.