Armillaria solidipes str. 28-4 (GCA_002307675) (Armost1)

Armillaria solidipes str. 28-4 (GCA_002307675) Assembly and Gene Annotation

About Armillaria solidipes str. 28-4 (GCA_002307675)


Armillaria ostoyae (sometimes called Armillaria solidipes) is a species of plant pathogenic fungus in the Physalacriaceae family. It is the most common variant in the western U.S., of the group of species that all used to share the name Armillaria mellea. Armillaria ostoyae is quite common on both hardwood and conifer wood in forests west of the Cascade crest. The mycelium attacks the sapwood and is able to travel great distances under the bark or between trees in the form of black rhizomorphs ("shoestrings").

In most areas of North America, Armillaria ostoyae can be separated from other species by its physical features. Its brown colors, fairly prominent scales featured on its cap, and the well-developed ring on its stem sets it apart from any Armillaria. (Herink, 1973)

It is known to be one of the largest living organisms, where scientists have estimated a single specimen found in Malheur National Forest in Oregon to be 2,400 years old, covering and colloquially named the "Humongous Fungus". Armillaria ostoyae grows and spreads primarily underground and the bulk of the organism lies in the ground, out of sight. Hence, the organism is invisible from the surface. In the autumn this organism blooms "honey mushrooms", evidence of the organism beneath. Low competition for land and nutrients have allowed this organism to grow so huge; it possibly covers more geographical area than any other living organism.

(Text and image from Wikipedia, the free encyclopaedia.)


The assembly presented is the Armost1 assembly submitted to INSDC with the assembly accession GCA_002307675.1.


The annotation presented is derived from annotation submitted to INSDC with the assembly accession GCA_002307675.1, with additional non-coding genes derived from Rfam. For more details, please visit INSDC annotation import.

More information

General information about this species can be found in Wikipedia.



AssemblyArmost1, INSDC Assembly GCA_002307675.1,
Database version100.1
Base Pairs55,743,814
Golden Path Length58,009,494
Genebuild by29
Genebuild methodImport
Data sourceEuropean Nucleotide Archive

Gene counts

Coding genes20,808
Non coding genes255
Small non coding genes255
Gene transcripts21,131

About this species