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 Seymeria cassioides has left across the world's sequence archives.
At a glance
Marker genes2
GenBank sequences4
Countries1
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★rbcL2
plant barcode
06Genome at a glanceCCDB
The complete instruction manualSeymeria cassioides 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 = 26 n = 13
Chromosome-count records — grouped by value · 2n = full set, n = gamete · click a value for sources & references
2n 261×CCDB · ipcn-api-dl
CCDB · ipcn-api-dl — Kondo, K., M. Segawa, L. J. Musselman & W. F. MANN. 1981. Comparative ecological study of the chromosome races in certain root parasitic plants of the southeastern U.S.A. Bol. Soc. Brot., sér. 2 53: 793–807.
08Occurrence & distribution
Record type839 records
Wild obs. + sensor547
Museum / vouchered292
Range
Area of Occupancy AOO2 240 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 accuracy72% within 1 km
≤100 m 263≤1 km 51≤10 km 36>10 km 88
438 georeferenced · 109 without coordinates
Open the mapobservation + sensor547
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 accuracy28% within 1 km
≤100 m 16≤1 km 26≤10 km 73>10 km 37
152 georeferenced · 140 without coordinates
Open the institutions mapphysical evidence292
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 institutions33 of 50 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
Tampa, US
29
Bangkok, TH
27
Chapel Hill, US
25
Wuzhou, CN
17
Jackson, US
16
Valdosta State Universitylocation not on record
12
Tuscaloosa, US
11
University of Stellenboschlocation not on record
10
Columbia, US
10
AUAlocation not on record
8
Bronx, US
8
Chongqing Museumlocation not on record
8
Miami, US
7
Florida Museum of Natural History- Zoology, Paleontology & Paleobotanylocation not on record
6
Clemson, US
6
Norfolk, US
6
US
6
BAYLUlocation not on record
5
GAlocation not on record
5
Mississippi State, US
5
Bloomington, US
5
Tall Timbers Research Stationlocation not on record
5
Knoxville, US
4
Jena Microbial Resource Collectionlocation not on record
4
New Haven, US
3
Walla Walla, US
3
College Park, US
3
Burlington, US
3
University of Southern Mississippilocation not on record
3
Little Rock, US
3
Saint Louis, US
2
Williamsburg, US
2
Chadron, US
2
EL PASO, US
2
James F. Matthews Center for Biodiversity Studieslocation not on record
2
Due West, US
1
Weymouth Woods Sandhills Nature Preservelocation not on record
1
DOI/NPS, Mississippi National River & Recreation Arealocation not on record
1
University of North Carolina at Pembrokelocation not on record
1
Tempe, US
1
DOI/NPS, Greenbelt Parklocation not on record
1
San Luis Obispo, US
1
Audubon Society -- Silver Bluff Audubon Center and Sanctuarylocation not on record
1
Dekalb, US
1
Boise, US
1
Flagstaff, US
1
Philadelphia, US
1
Austin, US
1
ASUlocation not on record
1
Kew, GB
1
50 institutions · 288 of 292 vouchered records shown · 4 without an institution code
