A preliminary account of the Cucurbitariaceae

W M Jaklitsch; J Checa; M N Blanco; I Olariaga; S Tello; H Voglmayr

doi:10.1016/j.simyco.2017.11.002

A preliminary account of the Cucurbitariaceae

Stud Mycol. 2018 Jun:90:71-118. doi: 10.1016/j.simyco.2017.11.002. Epub 2017 Nov 21.

Authors

W M Jaklitsch^{1

2}, J Checa³, M N Blanco³, I Olariaga⁴, S Tello⁵, H Voglmayr²

Affiliations

¹ Institute of Forest Entomology, Forest Pathology and Forest Protection, Department of Forest and Soil Sciences, BOKU-University of Natural Resources and Life Sciences, Peter-Jordan-Straße 82/I, 1190 Wien, Austria.
² Division of Systematic and Evolutionary Botany, Department of Botany and Biodiversity Research, University of Vienna, Rennweg 14, 1030 Wien, Austria.
³ Dpto. de Ciencias de la Vida, Facultad de Biología, Universidad de Alcalá, Alcalá de Henares, 28805 Madrid, Spain.
⁴ Biochemistry and Molecular Biology, Universidad del País Vasco/Euskal Herriko Unibertsitatea, Leioa, Spain.
⁵ Paseo del Obispo 7, 23150 Valdepeñas de Jaén, Jaén, Spain.

Abstract

Fresh collections, type studies and molecular phylogenetic analyses of a multigene matrix of partial nuSSU-ITS-LSU rDNA, rpb2, tef1 and tub2 sequences were used to evaluate the boundaries of Cucurbitaria in a strict sense and of several related genera of the Cucurbitariaceae. Two species are recognised in Cucurbitaria and 19 in Neocucurbitaria. The monotypic genera Astragalicola, Cucitella, Parafenestella, Protofenestella, and Seltsamia are described as new. Fenestella is here included as its generic type F. fenestrata (= F. princeps), which is lecto- and epitypified. Fenestella mackenzei and F. ostryae are combined in Parafenestella. Asexual morphs of Cucurbitariaceae, where known, are all pyrenochaeta- or phoma-like. Comparison of the phylogenetic analyses of the ITS-LSU and combined matrices demonstrate that at least rpb2 sequences should be added whenever possible to improve phylogenetic resolution of the tree backbone; in addition, the tef1 introns should be added as well to improve delimitation of closely related species.

Keywords: Ascomycota; Astragalicola Jaklitsch & Voglmayr; Astragalicola amorpha Jaklitsch & Voglmayr; Cucitella Jaklitsch & Voglmayr; Cucitella opali Jaklitsch & Voglmayr; Cucurbitaria oromediterranea Jaklitsch & Voglmayr; Dothideomycetes; Fenestella princeps Tul. & C. Tul.; N. aetnensis Jaklitsch & Voglmayr; N. cinereae Jaklitsch & Voglmayr; N. cisticola Jaklitsch & Voglmayr; N. juglandicola Jaklitsch & Voglmayr; N. populi Jaklitsch & Voglmayr; N. rhamnicola Jaklitsch & Voglmayr; N. rhamnioides Jaklitsch & Voglmayr; N. ribicola Jaklitsch & Voglmayr; N. vachelliae Jaklitsch & Voglmayr; Neocucurbitaria acanthocladae Jaklitsch & Voglmayr; Neocucurbitaria rhamni (Nees : Fr.) Jaklitsch & Voglmayr; Parafenestella Jaklitsch & Voglmayr; Parafenestella mackenziei (Wanas. et al.) Jaklitsch & Voglmayr; Parafenestella ostryae (Wanas. et al.) Jaklitsch & Voglmayr; Parafenestella pseudoplatani Jaklitsch & Voglmayr; Phoma; Pleosporales; Protofenestella Jaklitsch & Voglmayr; Protofenestella ulmi Jaklitsch & Voglmayr; Pyrenochaeta; Seltsamia Jaklitsch & Voglmayr; Seltsamia ulmi Jaklitsch & Voglmayr; Sphaeria rhamni Nees; Valsa fenestrata Berk. & Broome; new taxa; phylogenetic analysis; pyrenomycetes.