Three new Diaporthe species from Shaanxi Province, China

Qin Yang; Ning Jiang; Cheng-Ming Tian

doi:10.3897/mycokeys.67.49483

Three new Diaporthe species from Shaanxi Province, China

MycoKeys. 2020 May 4:67:1-18. doi: 10.3897/mycokeys.67.49483. eCollection 2020.

Authors

Qin Yang^{1

2}, Ning Jiang², Cheng-Ming Tian²

Affiliations

¹ Key Laboratory for Non-Wood Forest Cultivation and Conservation of the Ministry of Education, Central South University of Forestry and Technology, Changsha 410004, China Beijing Forestry University Beijing China.
² The Key Laboratory for Silviculture and Conservation of the Ministry of Education, Beijing Forestry University, Beijing 100083, China Central South University of Forestry and Technology Changsha China.

Abstract

Diaporthe species (Sordariomycetes, Diaporthales) are often reported as important plant pathogens, saprobes and endophytes on a wide range of plant hosts. In this study, Diaporthe specimens were collected from symptomatic twigs and branches at the Huoditang Forest Farm in Shaanxi Province, China. Identification was done using a combination of morphology and comparison of DNA sequence data of the nuclear ribosomal internal transcribed spacer (ITS), calmodulin (cal), histone H3 (his3), partial translation elongation factor-1α (tef1) and β-tubulin (tub2) gene regions. Three new Diaporthe species are proposed: D. albosinensis, D. coryli and D. shaanxiensis. All species are illustrated and their morphology and phylogenetic relationships with other Diaporthe species are discussed.

Keywords: Diaporthaceae; DNA phylogeny; Dieback; Systematics; Taxonomy.

Qin Yang, Ning Jiang, Cheng-Ming Tian.

Grants and funding

the Research Foundation of Education Bureau of Hunan Province, China (Project No.: 19B608) and the introduction of talent research start-up fund project of CSUFT (Project No.: 2019YJ025).