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 Krigia virginica has left across the world's sequence archives.
At a glance
DNA specimens10
Marker genes5
GenBank sequences10
eDNA detections6
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.
★matK2★rbcL6★rbcLa★ITS2★ITS2
plant barcodefungal barcode
06Genome at a glanceCCDB
The complete instruction manualKrigia virginica 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.
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.
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 1 621≤1 km 304≤10 km 132>10 km 315
2 372 georeferenced · 578 without coordinates
Open the mapobservation + sensor2 950
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 accuracy31% within 1 km
≤100 m 48≤1 km 244≤10 km 508>10 km 140
940 georeferenced · 657 without coordinates
Open the institutions mapphysical evidence1 597
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 institutions70 of 104 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
205
Bronx, US
88
University of Stellenboschlocation not on record
84
Bangkok, TH
82
Chongqing Museumlocation not on record
70
Ann Arbor, US
60
Madison, US
60
Williamsburg, US
58
New Haven, US
46
Jena Microbial Resource Collectionlocation not on record
46
University of New Hampshirelocation not on record
45
Tampa, US
42
College Park, US
40
Saint Louis, US
37
Burlington, US
35
Chapel Hill, US
33
Bloomington, US
30
Austin, US
23
Fort Worth, US
23
Norfolk, US
21
Valdosta State Universitylocation not on record
20
Columbia, US
18
Miami, US
16
US
16
Knoxville, US
14
Clemson, US
14
Tuscaloosa, US
13
GAlocation not on record
13
Allentown, US
12
Florida Museum of Natural History- Zoology, Paleontology & Paleobotanylocation not on record
9
Wuzhou, CN
9
DOI/NPS, Mississippi National River & Recreation Arealocation not on record
8
Fayetteville, US
8
Millersville, US
8
Jackson, US
8
AUAlocation not on record
7
Springfield, US
7
Western Carolina Universitylocation not on record
7
Mississippi State, US
6
Philadelphia, US
6
Dekalb, US
6
New Brunswick, US
6
University of North Carolina at Pembrokelocation not on record
6
Tall Timbers Research Stationlocation not on record
5
Staten Island, US
5
Keene State Universitylocation not on record
5
EL PASO, US
5
Little Rock, US
5
Kirksville, US
4
DOI/NPS, Greenbelt Parklocation not on record
4
China Agricultural Universitylocation not on record
4
James F. Matthews Center for Biodiversity Studieslocation not on record
4
Vancouver, CA
4
Dover, US
4
Chicago, US
4
UMKClocation not on record
3
Morgantown, US
3
Mount Berry, US
3
Riverside, US
3
Weymouth Woods Sandhills Nature Preservelocation not on record
3
University of Southern Mississippilocation not on record
3
Baltimore, US
3
Kingston, US
2
Columbus State Universitylocation not on record
2
DOI/NPS, Selma to Montgomery National Historic Traillocation not on record
2
GB
2
McWane Science Centerlocation not on record
2
Edmonton, CA
2
Flagstaff, US
2
Pittsburg, US
2
Montréal, CA
2
St. Paul, US
2
Davenport, US
2
Conway, US
2
Cambridge, US
2
Görlitz, DE
2
Lord Fairfax Community Collegelocation not on record
2
Denver, US
2
BAYLUlocation not on record
2
University of Guelph, OAC Herbariumlocation not on record
2
Washington, US
2
Emporia, US
2
Fairfax, US
2
Audubon Society -- Silver Bluff Audubon Center and Sanctuarylocation not on record
2
BClocation not on record
1
Chadron, US
1
CASlocation not on record
1
Provo, US
1
North Carolina Museum of Natural Scienceslocation not on record
1
Maryland Department of Natural Resourceslocation not on record
1
Denton, US
1
Mérida, MX
1
Due West, US
1
Claremont, US
1
San Luis Obispo, US
1
Berlin, DE
1
WTUlocation not on record
1
Moscow, US
1
Mohonk Preservelocation not on record
1
Jefferson City, US
1
Centre National d'Application des Recherches Pharmaceutiques (CNARP)location not on record
1
Lubbock, US
1
Oskarshamn, SE
1
Wlocation not on record
1
104 institutions · 1 503 of 1 597 vouchered records shown · 94 without an institution code
09Environmental DNA6 detections
Where the DNA of Krigia virginica 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 found6
Studies independent surveys1
Countries2
Signal confidence: weakweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 6 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 median18.7 °C 18.0–21.6
Seasonal swing summer↔winter22.9 °C
Max temp (day)24.5 °C 23.8–27.4
Min temp (night)14.5 °C 12.3–16.5
Precipitation82.0 mm/mo 79.9–87.1
Air humidity56.9 % 55.5–58.7
Moisture balance-61.1 mm/mo -69.2–-46.3
Vapour deficit919 Pa 898–1,104
Wind speed3.10 m/s 2.30–3.80
Cloud cover39.9 % 39.7–40.9
CHELSA 1981–2010, ~9 km grid, at location & month of 4 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.
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility4 548 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI6 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics10 specimens↗
NCBIUS National Library of Medicinesequences↗
GRIN TaxonomyUSDA-ARSdistribution & uses↗
Open Tree of LifeOpenTreephylogeny backbone↗
CCDBChromosome Counts DB · Tel Aviv U.genome & karyotype↗
PloiDBPloidy Databasegenome & karyotype