Paraeutypella guizhouensis gen. et sp. nov. and Diatrypella longiasca sp. nov. (Diatrypaceae) from China

Biodiversity Data Journal

Dong-Qin Dai¹  Kevin Hyde²  Milan Samarakoon²  Monika Dayarathne³  Lakmali Dissanayake⁴  Ji-Chuan Kang⁴  Nalin Wijayawardene⁵ 

[1] Center for Yunnan Plateau Biological Resources Protection and Utilization, College of Biological Resource and Food Engineering, Qujing Normal University;Center of Excellence in Fungal Research, Mae Fah Luang University;Department of Plant Pathology, Agriculture College, Guizhou University;Engineering Research Centre of the Utilization for Characteristic Bio-Pharmaceutical Resources in Southwest, Ministry of Education, Guizhou University;State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University;

关键词: <;    i>;    Acer<;    /i>;    morphology;    novel taxa;    phylogeny;    Xy;   

DOI  :  10.3897/BDJ.9.e63864

来源: DOAJ

【 摘 要 】

In this study, we introduce a novel genus Paraeutypella of the family Diatrypaceae, comprising three species viz. Paraeutypella guizhouensis sp. nov. and P. citricola (basionym: Eutypella citricola) and P. vitis (basionym: Sphaeria vitis). Diatrypella longiasca sp. nov. is also introduced, which forms a distinct clade in Diatrypella sensu stricto. The discovery of this new genus will contribute to expand the knowledge and taxonomic framework of Diatrypaceae (Xylariales).Generic delimitations in Diatrypaceae, Xylariales, are unsettled because the phylogeny has yet to be resolved using extensive taxon sampling and sequencing of ex-type cultures. During an investigation of xylarialean fungi, we collected eutypella-like taxon which is distinct from Eutypella s. str. in our phylogenetic analyses (ITS and β-tubulin) thus, introduced as Paraeutypella guizhouensis gen. et sp. nov.. Paraeutypella is characterized by having 4–25 perithecia in a stroma each with 3–6 sulcate, long ostiolar necks. Paraeutypella citricola comb. nov. (basionym: Eutypella citricola) is introduced on Acer sp. from China. Diatrypella longiasca sp. nov. is introduced as a new species in Diatrypella s. str. which has 2–5 ascomata per stromata and long ascospores, unusual when compared to other Diatrypella species and distinct phylogenetically.

【 授权许可】

Unknown