In the “1KFG: Deep Sequencing of Ecologically-relevant
Dikarya” project (CSP1974), we aim to sequence additional
sampling of genomic diversity within keystone lineages of
plant-interacting fungi and saprophytic fungi that are of special
ecological importance for understanding terrestrial ecosystems. In
addition, comparative genome analysis with saprotrophic,
mycorrhizal and pathogenic fungi will provide new insights into the
specific and conserved adaptations associated with each fungal
lifestyle.
Unilacryma unispora MAFF
240146
Unilacryma unispora is a conifer-inhabiting jelly-fungus
of the order Dacrymycetes with inconspicuous minute fruiting bodies
developing on dead coniferous wood. It is widely distributed in the
temperate areas of the Northern Hemisphere. As its name suggests,
Unilacryma unispora is unique among Dacrymycetes for
having basidia with one sterigmata only, while other Dacrymycetes
have two-sterigmatic basidia.
Unilacryma unispora is among the earliest diverging
extant wood decomposing fungi. Considering that all other studied
Dacrymycetes are brown-rotters, Unilacryma unispora is
also likely a brown-rot fungus; the genome will help to confirm
this. In phylogenetic analyses Unilacryma is the sister to
the rest of the class Dacrymycetes (Shirouzu et al. 2013), which,
in turn, are the earliest group of wood rotters in Agaricomycotina
(Nagy et al. 2016). Shirouzu et al. (2013) described a separate
order, Unilacrymales, for this species. In light of its
phylogenetic position, the genome of this species is of major
significance in understanding the evolution of wood decomposition
in Basidiomycetes as well as creating a stable classification for
the class Dacrymycetes.
The genome strain MAFF 240146 originates from a sample collected
on Pinus densiflora in Nagano, Japan (TNS-F-15731).
Researchers who wish to publish analyses using data from
unpublished CSP genomes are respectfully required to contact the PI
and JGI to avoid potential conflicts on data use and coordinate
other publications with the CSP master paper(s).
References:
- Nagy LG, Riley R, Tritt A, Adam C, Daum C, Floudas D, Sun H, Yadav JS, Pangilinan J, Larsson K-H, Matsuura K, Barry K, Labutti K, Kuo R, Ohm RA, Bhattacharya SS, Shirouzu T, Yoshinaga Y, Martin FM, Grigoriev IV, Hibbett DS (2016) Comparative Genomics of Early-Diverging Mushroom-Forming Fungi Provides Insights into the Origins of Lignocellulose Decay Capabilities. Molecular Biology and Evolution 33 (4):959-970. doi:10.1093/molbev/msv337
- Shirouzu T, Hirose D, Oberwinkler F, Shimomura N, Maekawa N, Tokumasu S (2013) Combined molecular and morphological data for improving phylogenetic hypothesis in Dacrymycetes. Mycologia 105 (5):1110-1125. doi:10.3852/12-147
