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 Circaea canadensis has left across the world's sequence archives.
At a glance
DNA specimens19
Marker genes5
GenBank sequences10
eDNA detections14
Countries2
The DNA barcodea real sequence read deposited for this species
★ 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.
★matK★rbcL7★rbcLa★ITS3★ITS2
plant barcodefungal barcode
06Genome at a glanceGoaT
The complete instruction manualCircaea canadensis 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 size625 920 000 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
FUNGUS0.04 Gb
INSECT0.25 Gb
THIS GENOME Circaea canadensis0.63 Gb
HUMAN3.2 Gb
WHEAT17 Gb
FERN Tmesipteris160.45 Gb
08Occurrence & distribution
Record type11 522 records
Wild obs. + sensor10 897
Museum / vouchered625
Origin
Native1
Range
Area of Occupancy AOO29 992 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 accuracy87% within 1 km
≤100 m 6 557≤1 km 1 277≤10 km 437>10 km 691
8 962 georeferenced · 1 935 without coordinates
Open the mapobservation + sensor10 897
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 accuracy70% within 1 km
≤100 m 79≤1 km 127≤10 km 79>10 km 9
294 georeferenced · 331 without coordinates
Open the institutions mapphysical evidence625
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 institutions44 of 67 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
Bloomington, US
155
University of Stellenboschlocation not on record
62
Green Bay, US
46
Ann Arbor, US
34
Saint Louis, US
33
Chongqing Museumlocation not on record
24
Chadron, US
20
McWane Science Centerlocation not on record
20
Madison, US
18
Jackson, US
16
Québec, CA
14
Chapel Hill, US
14
Bronx, US
14
Millersville, US
12
Pittsburg, US
9
Montréal, CA
7
Chicago, US
5
Philadelphia, US
4
New Haven, US
4
Smithsonian Institutionlocation not on record
4
Richmond, US
4
Dekalb, US
4
Williamsburg, US
3
Springfield, US
3
GB
3
St. Paul, US
3
USFS/BHSClocation not on record
3
James F. Matthews Center for Biodiversity Studieslocation not on record
3
Mount Pleasant, US
3
Ypsilanti, US
2
Appalachian State Universitylocation not on record
2
Hudson, US
2
UMKClocation not on record
2
Coastal Carolina Universitylocation not on record
2
College Park, US
2
University of Guelph, OAC Herbariumlocation not on record
2
University of Tennessee at Chattanoogalocation not on record
2
Fairfax, US
2
Bangkok, TH
2
Minia, EG
2
Toronto, CA
2
Little Rock, US
2
Flagstaff, US
2
Spearfish, US
2
Jefferson City, US
1
Keene State Universitylocation not on record
1
Tempe, US
1
York University, Packer Collectionlocation not on record
1
Meguro Parasitological Museumlocation not on record
1
Oswego, US
1
Tennessee Technological Universitylocation not on record
1
Kirksville, US
1
Lord Fairfax Community Collegelocation not on record
1
Asheville, US
1
West Virginia Wesleyan Collegelocation not on record
1
Museum of the Rockieslocation not on record
1
San Jose State University, Museum of Birds and Mammalslocation not on record
1
Université Lavallocation not on record
1
McGill University, Herbariumlocation not on record
1
Philadelphia, US
1
Florida Museum of Natural History- Zoology, Paleontology & Paleobotanylocation not on record
1
Durango, US
1
Paris, FR
1
Beijing, CN
1
Phoenix, US
1
Columbia, US
1
Museo civico La Terra e l'Uomo di Crocetta del Montellolocation not on record
1
67 institutions · 597 of 625 vouchered records shown · 28 without an institution code
09Environmental DNA14 detections
Where the DNA of Circaea canadensis 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 found14
Studies independent surveys1
Countries2
Signal confidence: weakweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 14 detections have coordinates
Open the map2 countries0
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 median7.70 °C 5.30–19.1
Seasonal swing summer↔winter28.9 °C
Max temp (day)12.3 °C 10.4–23.8
Min temp (night)3.70 °C 1.20–14.9
Precipitation81.1 mm/mo 67.8–99.1
Air humidity59.1 % 57.2–60.4
Moisture balance-13.1 mm/mo -51.0–2.10
Vapour deficit538 Pa 447–942
Wind speed3.10 m/s 2.80–4.10
Cloud cover48.0 % 40.8–50.6
CHELSA 1981–2010, ~9 km grid, at location & month of 11 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.
GBIFGlobal Biodiversity Information Facility11 522 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI14 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics19 specimens↗
NCBIUS National Library of Medicinesequences↗
Open Tree of LifeOpenTreephylogeny backbone↗
GoaTGenomes on a Tree · Sangergenome ~0.63 Gbp↗
Paleobiology DatabasePBDB consortiumfossil record↗
GLoBIGlobal Biotic Interactionsbiotic interactions↗