@ARTICLE{TreeBASE2Ref22533,
author = {Gerard J.M. Verkley and William Quaedvlieg and H. D. Shin and Pedro W. Crous},
title = {A new approach to species delimitation in Septoria},
year = {2013},
keywords = {},
doi = {10.3114/sim0018},
url = {http://studiesinmycology.org/},
pmid = {},
journal = {Studies in Mycology},
volume = {75},
number = {},
pages = {213--305},
abstract = {Septoria is a large genus of asexual morphs of Ascomycota causing leaf spot diseases of many cultivated and wild plants. Host specifcity has long been a decisive
criterium in species delimitation in Septoria, mainly because of the paucity of useful morphological characters and the high level of variation therein. This study aimed at
improving the species delimitation of Septoria by adopting a polyphasic approach, including multilocus DNA sequencing and morphological analyses on the natural substrate
and in culture. To this end 365 cultures preserved in CBS, Utrecht, The Netherlands, among which many new isolates obtained from fresh feld specimens were sequenced.
Herbarium material including many types was also studied. Full descriptions of the morphology in planta and in vitro are provided for 57 species. DNA sequences were
generated for seven loci, viz. nuclear ITS and (partial) LSU ribosomal RNA genes, RPB2, actin, calmodulin, Btub, and EF. The robust phylogeny inferred showed that the
septoria-like fungi are distributed over three main clades, establishing the genera Septoria s. str., Sphaerulina, and Caryophylloseptoria gen. nov. Nine new combinations
and one species, Sphaerulina tirolensis sp. nov. were proposed. It is demonstrated that some species have wider host ranges than expected, including hosts from more than
one family. Septoria protearum, previously only associated with Proteaceae was found to be also associated with host plants from six additional families of phanerogams and
cryptogams. To our knowledge this is the frst study to provide DNA-based evidence that multiple family-associations occur for a single species in Septoria. The distribution of
host families over the phylogenetic tree showed a highly dispersed pattern for 10 host plant families, providing new insight into the evolution of these fungi. It is concluded that
trans-family host jumping is a major force driving the evolution of Septoria and Sphaerulina.}
}
Matrices for Study 14901
Citation title: "A new approach to species delimitation in Septoria".
Study name: "A new approach to species delimitation in Septoria".
This study is part of submission 14901
(Status: Published).
Matrices
ID | Matrix Title | Description | Data type | NTAX | NCHAR | Taxa | ||||
---|---|---|---|---|---|---|---|---|---|---|
M19218 | Septoria, 7 loci | seven loci dataset | Nucleic Acid | 364 | 3877 | View Taxa |