Amylocystis lapponica SKaAmylap13 v1.0
Amylocystis lapponica by Sundy Maurice
Amylocystis lapponica by Sundy Maurice

The Amylocystis lapponica 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 on 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.

A polypore from the taiga, Amylocystis lapponica

Amylocystis lapponica (Romell) Bondartsev & Singer is a basidiomycete in the family Fomitopsidaceae, order Polyporales. It is an indicator species of long-term ecological continuity of virgin forests with natural tree species composition and rich presence of deadwood. From a conservation perspective, A. lapponica is considered a critically endangered polypore species included in national red lists of several European countries. With a circumboreal distribution in coniferous forest ecosystems, it is a typical taiga species following spruce. The basidiocarps of the species are annual, sessile or effused-reflexed, from whitish-brown to reddish brown with age and bruising, fleshy with rounded margin. Microscopically characteristics are cylindrical, smooth and hyaline basidiospores 8.0-11.0 x 2.5-3.5 µm, a monomitic hyphal system with generative hyphae bearing clamps.

An on-going research project (FunGen, PI’s Sundy Maurice and Håvard Kauserud), based on meta-population genomics study of several polypores species will be facilitated by complete reference genome of A. lapponica. Detection of signatures of selection and local adaptation with respect to the species status as an indicator species of old-growth forest will be investigated using both whole-genome re-sequencing and RAD-sequencing.

The 1KFG project is a large collaborative effort aiming for master publication(s). Please do contact the "1000 Fungal Genomes – Deep Sequencing of Ecologically-relevant Dikarya" PI (Dr. Francis Martin) for permission prior to the use of any data in publications.

Reference

Holec J. and Kučera T. (2007): Remarks to the ecology of the boreo-montane polypore Amylocystis lapponica based on data from the Czech Republic and Poland. Acta Mycologica 42(2): 161-168. Ryvarden, L., & Melo, I. (2010). Poroid fungi of Europe.