Suillus americanus is a species of fungus in the mushroom family Suillaceae. Commonly known as the chicken fat mushroom, American suillus, it grows in a mycorrhizal association with eastern white pine and is found where this tree occurs in eastern North America and China. The mushroom can be recognized by the bright yellow cap with red to reddish-brown scales embedded in slime, the large yellow angular pores on the underside of the cap, and the narrow yellow stem marked with dark reddish dots. Molecular phylogenetics analysis suggests that S. americanus may be the same species as S. sibiricus, found in western North America and western and central Asia. Suillus americanus is edible, although opinions vary as to its palatability; some susceptible individuals may suffer a contact dermatitis after touching the fruit bodies. The fruit bodies contain a beta glucan carbohydrate shown in laboratory tests to have anti-inflammatory properties.
No narrative description available for this taxon yet.
A DNA barcode is a short, standardised stretch of genes that works like a fingerprint — enough to tell one species from another. Below is the molecular trace Suillus americanus has left across the world's sequence archives.
At a glance
DNA specimens17
Marker genes2
GenBank sequences10
eDNA detections152
Countries7
The DNA barcodea real sequence read deposited for this species
Suillus americanus voucher XHW8719 (HKAS 118325) internal transcribed spacer 1, partial sequence; 5.8S ribosomal RNA gene and internal transcribed spacer 2, complete sequence; and large subunit ribosomal RNA gene, partial sequence
Marker genes sequenced
★ the standard DNA barcode for this group — the short region actually read to tell this species apart. The rest are extra genes sequenced along the way.
★ITS10★ITS1
fungal barcode
06Genome at a glanceGoaT · NCBI
The complete instruction manualSuillus americanus carries — its genome. We read it from three angles — how big it is, how the DNA is packed into chromosomes, and how completely it has been sequenced — and explain how to read each value as you go.
Genome sizehow big the whole instruction manual is
Genome size35 140 000 bp
Measured in base pairs (bp) — the individual letters of DNA (human ≈ 3.2 Gb, a bacterium a few million). The chart places this genome on a logarithmic scale — each step to the right is ten times bigger — among reference organisms. Across species a bigger genome loosely tracks with larger cells, slower growth and lower-energy lifestyles (powered flight favours small genomes) — yet it does not imply more genes or a more advanced organism (the long-standing C-value paradox).
BACTERIUM Carsonella ruddii0.00016 Gb
THIS GENOME Suillus americanus0.04 Gb
FUNGUS0.04 Gb
INSECT0.25 Gb
HUMAN3.2 Gb
WHEAT17 Gb
FERN Tmesipteris160.45 Gb
Sequencing statusassembly quality — how far to trust these numbers
Assembly level tells you how finished the sequence is — from fragmented contigs, through scaffolds, up to a full chromosome-level assembly. BUSCO % estimates completeness: the share of genes expected to be present that were actually found. These describe the data quality, not the organism.
Assembly levelScaffold
Completeness95.2% BUSCO
08Occurrence & distribution
Record type4 979 records
Wild obs. + sensor4 439
Museum / vouchered540
Range
Area of Occupancy AOO14 384 km²
Wildobservation + sensor
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
Coordinate accuracy78% within 1 km
≤100 m 2 361≤1 km 532≤10 km 474>10 km 328
3 695 georeferenced · 744 without coordinates
Open the mapobservation + sensor4 439
Museum / Voucheredphysical evidence
Backed by a physical specimen — a herbarium sheet, sample or voucher held in a collection. “Vouchered” means supported by material evidence, not just an observation.
Coordinate accuracy34% within 1 km
≤100 m 20≤1 km 64≤10 km 142>10 km 18
244 georeferenced · 296 without coordinates
Open the institutions mapphysical evidence540
Wildobservation + sensor
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
10Collections & institutions
Holding institutions22 of 44 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
Bronx, US
88
St. Paul, US
59
Ann Arbor, US
47
Chicago, US
45
TENN-Flocation not on record
41
Durham, US
31
Toronto, CA
29
Davis and Elkins Collegelocation not on record
23
ILLSlocation not on record
14
Bernard Price Institute for Palaeontological Researchlocation not on record
12
Champaign, US
12
Université de Montréal Biodiversity Centrelocation not on record
11
Blacksburg, US
10
Zapopan, MX
7
WU-MYClocation not on record
7
Pullman, US
6
Helsinki, FI
6
Denver, US
5
California State University, East Baylocation not on record
5
Catholic University of Pekinglocation not on record
4
Philadelphia, US
4
IB FRC Komi SC UB RASlocation not on record
4
Acadia Universitylocation not on record
4
McWane Science Centerlocation not on record
3
Colorado State Universitylocation not on record
3
WTUlocation not on record
3
FLASlocation not on record
3
Madison, US
2
Laramie, US
2
CA
2
Natural History Museum, Tribhuvan Universitylocation not on record
1
PHlocation not on record
1
San Sebastián, ES
1
Adam Mickiewicz University in Poznańlocation not on record
1
Clemson, US
1
Cornell University, Plant Pathology Herbariumlocation not on record
1
Surgut State Universitylocation not on record
1
Mexico City, MX
1
Mexico City, MX
1
US
1
Department of Plant Resources, National Herbarium and Plant Laboratorieslocation not on record
1
Kensington, AU
1
Olocation not on record
1
James Ford Bell Museum of Natural Historylocation not on record
1
44 institutions · 506 of 540 vouchered records shown · 32 without an institution code
09Environmental DNA152 detections
Where the DNA of Suillus americanus was picked up in samples of water, soil or air — nobody saw the organism, only its DNA left behind. A trace is a clue that the species was near, not a confirmed sighting.
Signal
Detections DNA found152
Studies independent surveys7
Countries7
Verifiable raw sequence linked1
Signal confidence: moderateweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 152 detections have coordinates
Open the map7 countries0
PalearcticForestMaple hemlock birch white pineConiferous forestIndomalayan
How strong is each trace?
DNA read depthRead counts were not reported for this species — the map shows presence only, not how strong each trace was.
Modelled climatemodelled
−15°Ctemperature across detection sites+40°C
Temperature median8.00 °C 7.80–16.8
Seasonal swing summer↔winter23.3 °C
Max temp (day)12.7 °C 12.0–20.5
Min temp (night)3.50 °C 1.50–14.2
Precipitation81.2 mm/mo 49.8–136
Air humidity60.4 % 58.7–64.6
Moisture balance-4.40 mm/mo -76.4–66.3
Vapour deficit441 Pa 366–740
Wind speed2.10 m/s 0.8–4.80
Cloud cover45.6 % 39.3–51.4
CHELSA 1981–2010, ~9 km grid, at location & month of 144 detection points · median with p10–p90 · reflects where sampling happened, not only the true niche
How to read this: each dot is one detection of this species' DNA in an environmental sample. The confidence meter weighs how many independent studies and places back up the signal — one detection in one study is a hint; many across several studies is solid. Records dated before 2008 (when eDNA methods began) are treated as likely mislabeled and left off the map.
WikipediaWikimedia Foundation7 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility4 979 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI152 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics17 specimens↗
NCBIUS National Library of Medicinesequences↗
Open Tree of LifeOpenTreephylogeny backbone↗
GoaTGenomes on a Tree · Sangergenome & karyotype↗
Catalogue of LifeCOLtaxonomy↗
GLoBIGlobal Biotic Interactionsbiotic interactions↗