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 Eleocharis tuberculosa has left across the world's sequence archives.
At a glance
DNA specimens6
Marker genes5
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.
★matK2★rbcL4★rbcLa★ITS3★ITS2
plant barcodefungal barcode
06Genome at a glanceCCDB
The complete instruction manualEleocharis tuberculosa 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.
Chromosome-count records — grouped by value · 2n = full set, n = gamete · click a value for sources & references
2n 302×CCDB · cyper-only · CCDB · ipcn-api-dl
CCDB · cyper-only — Schuyler, A. E.1977
CCDB · ipcn-api-dl — Schuyler, A. E. 1977. Chromosome observations on some eastern North American Eleocharis (Cyperaceae). Brittonia 29: 129–133.
08Occurrence & distribution
Record type1 372 records
Wild obs. + sensor99
Museum / vouchered1 273
Range
Area of Occupancy AOO4 048 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 accuracy71% within 1 km
≤100 m 58≤1 km 3≤10 km 1>10 km 24
86 georeferenced · 13 without coordinates
Open the mapobservation + sensor99
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 accuracy43% within 1 km
≤100 m 85≤1 km 234≤10 km 332>10 km 96
747 georeferenced · 526 without coordinates
Open the institutions mapphysical evidence1 273
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 institutions54 of 85 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
Jackson, US
169
Philadelphia, US
147
Chapel Hill, US
94
Bangkok, TH
65
Bronx, US
53
Jena Microbial Resource Collectionlocation not on record
50
Valdosta State Universitylocation not on record
48
Tampa, US
42
New Haven, US
40
Williamsburg, US
33
Tuscaloosa, US
33
Austin, US
29
Chongqing Museumlocation not on record
28
US
28
Columbia, US
27
University of Southern Mississippilocation not on record
21
BAYLUlocation not on record
19
Mississippi State, US
18
Fort Worth, US
17
University of Stellenboschlocation not on record
16
Miami, US
15
Wuzhou, CN
15
Ann Arbor, US
14
Knoxville, US
14
Bloomington, US
13
James F. Matthews Center for Biodiversity Studieslocation not on record
13
San Angelo, US
12
College Park, US
11
Burlington, US
11
AUAlocation not on record
10
Clemson, US
9
Florida Museum of Natural History- Zoology, Paleontology & Paleobotanylocation not on record
8
University of New Hampshirelocation not on record
7
Flagstaff, US
7
GAlocation not on record
6
EL PASO, US
6
Dover, US
5
Weymouth Woods Sandhills Nature Preservelocation not on record
5
Norfolk, US
5
Richmond, US
4
Little Rock, US
4
Saint Louis, US
4
University of South Carolina Salkehatchielocation not on record
3
Guasave, MX
3
DOI/NPS, Little Rock Central High School National Historic Sitelocation not on record
3
Tall Timbers Research Stationlocation not on record
3
Fairfax, US
3
Pullman, US
2
LDlocation not on record
2
Museo civico La Terra e l'Uomo di Crocetta del Montellolocation not on record
2
San Jose State University, Museum of Birds and Mammalslocation not on record
2
Phoenix, US
2
Acadia Universitylocation not on record
2
Montréal, CA
2
Christchurch, NZ
2
Auckland, NZ
2
Riverside, US
2
DOI/NPS, Mississippi National River & Recreation Arealocation not on record
2
Durham, US
1
Provo, US
1
Davenport, US
1
Weber State Universitylocation not on record
1
Long Beach, US
1
New Brunswick, US
1
North Carolina Museum of Natural Scienceslocation not on record
1
Dekalb, US
1
Allentown, US
1
Saint John, CA
1
Chadron, US
1
Logan, US
1
Millersville, US
1
University of Tennessee at Chattanoogalocation not on record
1
ASUlocation not on record
1
Wlocation not on record
1
DOI/NPS, Greenbelt Parklocation not on record
1
BClocation not on record
1
Denver, US
1
Forest Herbarium Ibadan (FHI)location not on record
1
Edmonton, CA
1
Maryland Department of Natural Resourceslocation not on record
1
Henderson State Universitylocation not on record
1
Due West, US
1
Universidade Federale do Rio Grande do Sullocation not on record
1
Boise, US
1
Porto Alegre, BR
1
85 institutions · 1 239 of 1 273 vouchered records shown · 34 without an institution code
09Environmental DNA4 detections
Where the DNA of Eleocharis tuberculosa 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
Signal confidence: weakweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 4 detections have coordinates
Open the map0 countries0
Wet, sandy beach.
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.
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 Facility1 372 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI4 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics6 specimens↗
NCBIUS National Library of Medicinesequences↗
GRIN TaxonomyUSDA-ARSdistribution & uses↗
Open Tree of LifeOpenTreephylogeny backbone↗
CCDBChromosome Counts DB · Tel Aviv U.genome & karyotype↗
GLoBIGlobal Biotic Interactionsbiotic interactions↗