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 Hepatica americana has left across the world's sequence archives.
At a glance
DNA specimens22
Marker genes5
eDNA detections10
Countries2
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.
★matK★rbcL★rbcLa★ITS2trnH-psbA
plant barcodefungal barcodemarker
06Genome at a glanceGoaT
The complete instruction manualHepatica americana 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 size17 115 000 000 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
HUMAN3.2 Gb
WHEAT17 Gb
THIS GENOME Hepatica americana17.11 Gb
FERN Tmesipteris160.45 Gb
Chromosomes & ploidyhow the DNA is packaged
2n is the full chromosome count in a normal body cell; n is a gamete (egg or sperm), which carries half. Ploidy is how many complete chromosome sets each cell holds — 2× (diploid) is typical for animals, while higher levels (polyploidy) are common in plants. Click any value below to see the underlying records and sources.
Ploidy records — measured levels and diploid/polyploid inferences · click for sources
diploid1×GoaT · Kew Plant DNA C-values Database
GoaT · Kew Plant DNA C-values Database
08Occurrence & distribution
Record type20 223 records
Wild obs. + sensor19 041
Museum / vouchered1 179
Cultivated / captive3
Origin
Native4
Range
Area of Occupancy AOO33 464 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 accuracy81% within 1 km
≤100 m 10 220≤1 km 2 642≤10 km 1 003>10 km 1 943
15 808 georeferenced · 3 233 without coordinates
Open the mapobservation + sensor19 041
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 accuracy38% within 1 km
≤100 m 43≤1 km 285≤10 km 487>10 km 43
858 georeferenced · 321 without coordinates
Open the institutions mapphysical evidence1 179
Cultivated / Captivenot free-living
A living individual in a botanical garden, zoo or nursery — cultivated or kept, not free-living.
Coordinate accuracy
no georeferenced coordinates · 3 records without
Open the mapnot free-living3
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 institutions48 of 68 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
Philadelphia, US
267
Chongqing Museumlocation not on record
170
Chapel Hill, US
99
Ann Arbor, US
63
Green Bay, US
63
College Park, US
56
New Haven, US
52
Bangkok, TH
38
Québec, CA
36
Allentown, US
33
Williamsburg, US
30
University of Stellenboschlocation not on record
26
Whitewater, US
22
Jackson, US
20
Toronto, CA
20
Tampa, US
19
Montréal, CA
12
Madison, US
11
Knoxville, US
11
Keene State Universitylocation not on record
11
Staten Island, US
11
Université Lavallocation not on record
8
Dekalb, US
7
James F. Matthews Center for Biodiversity Studieslocation not on record
7
Smithsonian Institutionlocation not on record
6
St. Paul, US
6
Hudson, US
6
WINlocation not on record
4
McWane Science Centerlocation not on record
3
BAYLUlocation not on record
3
Columbia, US
3
Kingston, US
2
Oswego, US
2
Paris, FR
2
Auckland, NZ
2
University of Southern Mississippilocation not on record
2
Vancouver, CA
2
Conway, US
1
Ypsilanti, US
1
Cheney, US
1
Boise, US
1
Washington, US
1
University of Tennessee at Chattanoogalocation not on record
1
Weymouth Woods Sandhills Nature Preservelocation not on record
1
Museo civico La Terra e l'Uomo di Crocetta del Montellolocation not on record
1
Moscow State Universitylocation not on record
1
Saint Louis, US
1
Tennessee Technological Universitylocation not on record
1
University of North Carolina at Pembrokelocation not on record
1
Claremont, US
1
Chicago, US
1
Mississippi State, US
1
Tuscaloosa, US
1
ASUlocation not on record
1
Whitehorse, CA
1
Saint John, CA
1
DOI/NPS, Greenbelt Parklocation not on record
1
Berlin, DE
1
University of Guelph, OAC Herbariumlocation not on record
1
Pullman, US
1
Fairfax, US
1
McGill University, Herbariumlocation not on record
1
Due West, US
1
Durango, US
1
Miami, US
1
Moscow, US
1
Bronx, US
1
Pocatello, US
1
68 institutions · 1 166 of 1 179 vouchered records shown · 13 without an institution code
Cultivated / Captivenot free-living
A living individual in a botanical garden, zoo or nursery — cultivated or kept, not free-living.
09Environmental DNA10 detections
Where the DNA of Hepatica americana 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 found10
Studies independent surveys1
Countries2
Signal confidence: weakweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 10 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 median11.2 °C 2.50–12.0
Seasonal swing summer↔winter25.2 °C
Max temp (day)17.1 °C 7.00–17.6
Min temp (night)5.20 °C -1.00–6.10
Precipitation90.4 mm/mo 67.3–91.3
Air humidity54.2 % 53.1–61.2
Moisture balance-7.50 mm/mo -17.0–12.0
Vapour deficit628 Pa 365–650
Wind speed3.50 m/s 3.10–4.90
Cloud cover47.2 % 45.1–52.0
CHELSA 1981–2010, ~9 km grid, at location & month of 8 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.
