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 Asclepias exaltata has left across the world's sequence archives.
At a glance
DNA specimens9
Marker genes4
GenBank sequences9
eDNA detections4
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.
★matK4★rbcL5★rbcLatrnH-psbA
plant barcodemarker
06Genome at a glanceCCDB
The complete instruction manualAsclepias exaltata 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.
Chromosomes2n = 22 n = 11
Ploidydiploid inferred
Chromosome-count records — grouped by value · 2n = full set, n = gamete · click a value for sources & references
2n 221×CCDB · ipcn-api-dl
CCDB · ipcn-api-dl — Hill, L. M. 1995. IOPB chromosome data 9. Int. Organ. Pl. Biosyst. Newslett. (Zurich) 24: 19–20.
Ploidy records — measured levels and diploid/polyploid inferences · click for sources
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
Coordinate accuracy77% within 1 km
≤100 m 2 673≤1 km 555≤10 km 309>10 km 667
4 204 georeferenced · 902 without coordinates
Open the mapobservation + sensor5 106
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 accuracy30% within 1 km
≤100 m 54≤1 km 213≤10 km 547>10 km 76
890 georeferenced · 269 without coordinates
Open the institutions mapphysical evidence1 159
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 · 1 records without
Open the mapnot free-living1
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 institutions57 of 80 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
Chongqing Museumlocation not on record
169
Madison, US
141
Philadelphia, US
100
St. Paul, US
97
Chicago, US
74
Bloomington, US
52
Burlington, US
45
Ann Arbor, US
45
Bronx, US
34
University of New Hampshirelocation not on record
33
Allentown, US
29
Chapel Hill, US
24
New Haven, US
23
Williamsburg, US
15
Appalachian State Universitylocation not on record
14
Bangkok, TH
14
Green Bay, US
13
Wuzhou, CN
12
Museo civico La Terra e l'Uomo di Crocetta del Montellolocation not on record
12
University of Wisconsinlocation not on record
8
Tampa, US
7
Mohonk Preservelocation not on record
7
Saint Louis, US
7
Johnson City, US
6
Knoxville, US
6
Chicago, US
6
Philadelphia, US
5
Whitewater, US
5
Keene State Universitylocation not on record
5
Morgantown, US
5
College Park, US
5
Western Carolina Universitylocation not on record
5
Staten Island, US
5
Mississippi State, US
4
Millersville, US
4
New Brunswick, US
3
McWane Science Centerlocation not on record
3
Ypsilanti, US
3
Florida Museum of Natural History- Zoology, Paleontology & Paleobotanylocation not on record
3
University of Wisconsinlocation not on record
3
Clemson, US
3
Norfolk, US
3
Fort Worth, US
3
Denver, US
3
Dekalb, US
2
Mexico City, MX
2
Smithsonian Institutionlocation not on record
2
San Jose State University, Museum of Birds and Mammalslocation not on record
2
Durham, US
2
Asheville, US
2
Museum of the Rockieslocation not on record
2
Fairfax, US
2
Flagstaff, US
2
University of Tennessee at Chattanoogalocation not on record
2
Harrisonburg, US
2
DOI/NPS, Greenbelt Parklocation not on record
2
Richmond, US
2
Pittsburg, US
2
West Virginia Wesleyan Collegelocation not on record
1
Pullman, US
1
AUAlocation not on record
1
Davenport, US
1
US
1
Maryland Department of Natural Resourceslocation not on record
1
Museo Nacional de Costa Rica (MNCR)location not on record
1
Cincinnati, US
1
WTUlocation not on record
1
Lord Fairfax Community Collegelocation not on record
1
Jackson, US
1
Kew, GB
1
Due West, US
1
Hudson, US
1
San Francisco, US
1
Fargo, US
1
Elikins, US
1
Decorah, US
1
University of Guelph, OAC Herbariumlocation not on record
1
Austin, US
1
Santa Barbara, US
1
Columbia, US
1
80 institutions · 1 113 of 1 159 vouchered records shown · 46 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 DNA4 detections
Where the DNA of Asclepias exaltata 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 found4
Studies independent surveys1
Countries2
Signal confidence: weakweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 4 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 median22.4 °C 19.8–23.1
Seasonal swing summer↔winter23.3 °C
Max temp (day)27.7 °C 24.9–28.3
Min temp (night)17.4 °C 15.4–17.8
Precipitation92.9 mm/mo 87.0–99.1
Air humidity56.9 % 56.6–57.1
Moisture balance-57.1 mm/mo -62.7–-43.5
Vapour deficit1,156 Pa 998–1,222
Wind speed2.40 m/s 2.40–2.90
Cloud cover32.6 % 31.7–39.3
CHELSA 1981–2010, ~9 km grid, at location & month of 3 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 Facility6 266 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI4 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics9 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
WikidataWikimedia Foundationstructured facts↗