Podospora anserina is a model ascomycete that has been used for over a century to study many biological phenomena including ageing, prions and sexual reproduction. Here, through the molecular and phenotypic analyses of several strains, we delimit species that are hidden behind the P. anserina/P. pauciseta and P. comata denomination in culture collections. Molecular analyses of several regions of the genome as well as growth characteristics show that these strains form a species complex with at least seven members. None of the traditional morphology-based characters such as ascospore and perithecium sizes or presence of setae at the neck are able to differentiate all the species, unlike the ITS barcode, mycelium growth characteristics and repartition of perithecia on the thallus. Interspecific crosses are nearly sterile and most F1 progeny is female sterile. As a result of our analyses, the taxonomy of the P. anserina complex is clarified by lecto- and epitypifications of the names P. anserina, P. pauciseta and P. comata, as well as descriptions of the new species P. bellae-mahoneyi, P. pseudoanserina, P. pseudocomata, and P. pseudopauciseta. We also report on the ability of species from this complex to form a Cladorrhinum-like asexual morph and to produce tiny sclerotium-like structures.
You have requested a machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Neither BioOne nor the owners and publishers of the content make, and they explicitly disclaim, any express or implied representations or warranties of any kind, including, without limitation, representations and warranties as to the functionality of the translation feature or the accuracy or completeness of the translations.
Translations are not retained in our system. Your use of this feature and the translations is subject to all use restrictions contained in the Terms and Conditions of Use of the BioOne website.
Vol. 38 • No. 4