Kabatina R. Schneid. & Arx, Phytopath. Z. 57: 179 (1966).

Index Fungorum number: IF 8657; MycoBank number: MB 8657; Facesoffungi number: FoF 00084; 4 morphological species (Species Fungorum 2020), 4 species with molecular data.

Type species – Kabatina thujae R. Schneid. & Arx, Phytopath. Z. 57: 180 (1966).

Notes – Kabatina is an asexual genus introduced to accommodate K. juniperi and K. thujae. Later, Butin & Schneider (1976), Ramaley (1992), and Butin & Pehl (1993) added K. populi, K. mahoniae, and K. abietis, respectively. The unique characters of Kabatina are enteroblastic, phialidic or percurrent, determinate, brown to pale brown conidiogenous cells with a channel and collarette (Thambugala et al. 2014a). Wijayawardene et al. (2012) placed this genus under Dothioraceae, while Hyde et al. (2013) and Thambugala et al. (2014a) categorized Kabatina as a genus in Dothideaceae. Only ITS sequence data are available for Kabatina species in GenBank. Therefore, Kabatina species need to be sequenced for nuclear ribosomal genes and protein-coding genes in order to obtain better resolution in the phylogenetic analyses. Kabatina species do not have ex-type sequence data, and re-collecting and sequencing are needed to confirm the familial placements (Thambugala et al. 2014a). Kabatina mahoniae was synonymized by Crous et al. (2018a) under Dothiora mahoniae. However, in the present study, Kabatina juniperi and K. thujae grouped as a monophyletic clade sister to Dothidea (88 % MLBS, 0.94 PP, Fig. 27).

Figure 1 – Phylogram generated from maximum likelihood analysis (RAxML) of Dothideales based on ITS, LSU and SSU sequence data. Maximum likelihood bootstrap values equal or above 70 %, Bayesian posterior probabilities equal or above 0.90 (MLBS/PP) are given at the nodes. An original isolate number is noted after the species name. The tree is rooted to Elsinoe phaseoli (CBS 165.3), E. veneta (AFTOL-ID 1853), Myriangium duriaei (AFTOL-ID 1304), and M. hispanicum (CBS 247.33). The ex-type strains are indicated in bold. Hyphen (-) represents support values below 70 % MLBS and 0.90 PP.

Species

  • Kabatina thujae