This genome was sequenced as part of the JGI CSP "1000
Fungal Genomes – Deep Sequencing of Ecologically-relevant
Dikarya" project. Within the framework of this project, we are
sequencing keystone lineages of saprophytic, mycorrhizal, and
endophytic fungi that are of special ecological importance. Dozens
of sequenced species were harvested from Long Term Observatories to
serve as the foundation for a reference database for metagenomics
of fungi and for a comprehensive survey of the soil fungal
metatranscriptome.
Postia stiptica
OMC1664
Postia stiptica is a brown-rot polypore that grows in
dying and dead conifer trees, less commonly on deciduous trees. It
has been reported to be a weak pathogen (Niemelä 2016), but is
mostly found fruiting in stumps and bases of fallen trees, even on
roots. The fruiting bodies are white, pileate, rough on upper
surface, and extremely bitter in taste. The species is common
throughout the Northern Hemisphere in coniferous forests.
Postia stiptica is the first genome from the family
Dacryobolaceae in Polyporales (Justo et al. 2017). Despite its
name, it is not closely related to Postia placenta
(=Rhodonia placenta). Relationships of major clades of
brown-rot Polyporales are still poorly understood, and this genome
will help to clarify them. It is, for instance, not clear if all
brown-rotters of the Polyporales have a common origin or whether
the habit developed several times in the order. This genome will
offer a point of comparison to other Polyporales brown-rot genomes
in studying molecular mechanisms of brown-rot.
The genome strain originates from a polysporic culture made from a
fruiting body growing on recently fallen trunk of spruce (Picea
abies) in Helsinki, Finland.
The 1KFG project is a large collaborative effort aiming for master
publication(s). Please do contact the PI for 1KFG - Deep Sequencing
of Ecologically-relevant Dikarya (Dr. Francis Martin) for
permission prior to the use of any data in publications.
References
- Justo A, Miettinen O, Floudas D, Ortiz-Santana B, Sjökvist E, Lindner D, Nakasone K, Niemelä T, Larsson K-H, Ryvarden L, Hibbett DS (2017) A revised family-level classification of the Polyporales (Basidiomycota). Fungal Biol 121 (9):798-824. doi:10.1016/j.funbio.2017.05.010
- Niemelä T (2016) Suomen käävät - Polypores of Finland. Norrlinia 31:1-430