Phylogeny of mitosporic Capnodiales and description of a new sooty mold species Fumiglobus pierisicolus from British Columbia, Canada
T. BOSE (1), D. R. Reynolds (2), M. L. Berbee (3). (1) University of British Columbia, Vancouver, BC, Canada; (2) Jepson Herbaria, University of California, Berkeley, CA, U.S.A.; (3) Department of Botany, University of British Columbia, Vancouver, BC, Canada
Capnodiaceae are sooty molds, saprotrophic fungi that grow superficially on plants, usually in association with sap-sucking insects. Our goals were to identify a new sooty mold from the ornamental shrub Japanese andromeda, and to use molecular phylogenetics to analyze patterns of character evolution of the fungus and its relatives. Morphological analysis of the pycnidial state suggested the fungus was in the genus <i>Fumiglobus</i> but it did not fit in any previously described species. We illustrate and describe the mold as <i>Fumiglobus pierisicolus</i>. We also for the first time locate the phylogenetic position of <i>Fumiglobus</i> using LSU and SSU r-DNA genes. Our analysis shows that <i>Fumiglobus</i> is an early-diverging genus within Capnodiaceae with strong bootstrap support. We also provide new sequence data of the type species of the mitosporic genus <i>Conidiocarpus</i>, also in Capnodiaceae. We confirm <i>Conidiocarpus</i> as the anamorph of <i>Phragmocapnias</i>. By rules of nomenclatoral priority, the name of the holomorph genus is <i>Conidiocarpus</i>. We comment on morphological characters that help define the Capnodiaceae including the pycnidial state and mucilaginous hyphae, and analyze the distribution of these characters in a phylogeny. Our analyses help provide a comprehensive molecular and morphological definition of the Capnodiaceae.
View Presentation |
