Morphological and phylogenetic analyses reveal three new species of Diaporthe from Yunnan, China
Shengting Huang, Ji-Wen Xia, Xiu-Guo Zhang, Wenxiu Sun
Abstract
Species of Diaporthe have often been reported as plant pathogens, endophytes or saprobes, commonly isolated from a wide range of plant hosts. Sixteen strains isolated from species of ten host genera in Yunnan Province, China, represented three new species of Diaporthe , D. chrysalidocarpi , D. machili and D. pometiae as well as five known species D. arecae , D. hongkongensis , D. middletonii , D. osmanthi and D. pandanicola . Morphological comparisons with known species and DNA-based phylogenies based on the analysis of a multigene (ITS, TUB, TEF, CAL and HIS) dataset support the establishment of the new species. This study reveals that a high species diversity of Diaporthe with wide host ranges occur in tropical rainforest in Yunnan Province, China.