Phylogeny and taxonomy of Phyllactinia species (powdery mildew: Erysiphaceae) occurring on the ash trees (Fraxinus spp.).

ABSTRACT: The genus Fraxinus (Oleaceae), known as ash trees, currently comprises 43 recognized species that are distributed in temperate and subtropical regions of the Northern Hemisphere. Two Phyllactinia species, P. fraxini and P. fraxinicola, have been known on Fraxinus spp. so far. In this study, powdery mildews belonging to Phyllactinia were collected on Fraxinus spp. from different areas of the world to make molecular and morphological analyses. These specimens are divided into four distinct molecular phylogenetic groups, which are distinguishable by their morphology and/or host preference. Two new species, viz. P. japonica occurring on F. sieboldina and F. lanuginosa f. serrata, and P. fraxini-longicuspidis

SUBMITTER: Maeda M 

PROVIDER: S-EPMC9721523 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature