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 Trifolium cyathiferum has left across the world's sequence archives.
At a glance
DNA specimens4
Marker genes4
GenBank sequences4
eDNA detections3
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.
★rbcL1★rbcLa★ITS3★ITS2
plant barcodefungal barcode
06Genome at a glanceCCDB
The complete instruction manualTrifolium cyathiferum 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 = 16 n = 8
Ploidydiploid inferred
Chromosome-count records — grouped by value · 2n = full set, n = gamete · click a value for sources & references
2n 161×CCDB · book-ipcn67-71
CCDB · book-ipcn67-71 — GILLETT, J.M., & T. MOSQUIN. 1967. In IOPB chromosome number reports x. Taxon 16: 146-157.
n 81×CCDB · book-ipcn67-71
CCDB · book-ipcn67-71 — GILLETT, J.M., & T. MOSQUIN. 1967. In IOPB chromosome number reports x. Taxon 16: 146-157.
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 accuracy94% within 1 km
≤100 m 153≤1 km 16≤10 km 4>10 km 7
180 georeferenced · 66 without coordinates
Open the mapobservation + sensor246
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 accuracy65% within 1 km
≤100 m 44≤1 km 172≤10 km 105>10 km 9
330 georeferenced · 354 without coordinates
Open the institutions mapphysical evidence684
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
DOI/NPS, Little Rock Central High School National Historic Sitelocation not on record
64
Corvallis, US
62
Pullman, US
47
Davis, US
34
Claremont, US
32
Moscow, US
28
WTUlocation not on record
27
Caldwell, US
25
Santa Barbara, US
23
Bronx, US
19
Angwin, US
19
Riverside, US
16
Santa Cruz, US
16
CASlocation not on record
16
Henderson, US
11
Provo, US
10
LDlocation not on record
10
Logan, US
10
Boise, US
10
ASUlocation not on record
9
San Luis Obispo, US
9
Pocatello, US
8
Wuzhou, CN
8
Flagstaff, US
7
Victoria, CA
7
Missoula, US
7
Vancouver, CA
7
Arcata, US
5
Portland, US
4
Ashland, US
4
San Diego, US
4
VALElocation not on record
3
San Jose, US
3
Canadian Department of Agriculturelocation not on record
3
US
3
Bangkok, TH
2
Cheney, US
2
DOI/NPS, Greenbelt Parklocation not on record
2
Turlock, US
2
Chongqing Museumlocation not on record
2
Tacoma, US
2
Turku, FI
2
Philadelphia, US
2
Columbia, US
1
SEFlocation not on record
1
Tampa, US
1
Irvine, US
1
Jena Microbial Resource Collectionlocation not on record
1
Bozeman, US
1
Québec, CA
1
KNFHClocation not on record
1
Pittsburg, US
1
Minia, EG
1
Mississippi State, US
1
Truckee, US
1
Museo civico La Terra e l'Uomo di Crocetta del Montellolocation not on record
1
STNFlocation not on record
1
Whitehorse, CA
1
Severin-McDaniel Insect Collectionlocation not on record
1
DOI/NPS, Colonial National Historical Parklocation not on record
1
DOI/NPS, Craters of the Moon National Monument & Preservelocation not on record
1
Eastern Nevada Landscape Coalitionlocation not on record
1
Oskarshamn, SE
1
Bloomington, US
1
University of Stellenboschlocation not on record
1
Macomb, US
1
EL PASO, US
1
MAlocation not on record
1
68 institutions · 611 of 684 vouchered records shown · 73 without an institution code
09Environmental DNA3 detections
Where the DNA of Trifolium cyathiferum 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 found3
Studies independent surveys1
Signal confidence: weakweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 3 detections have coordinates
Open the map0 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.
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.
WikipediaWikimedia Foundation4 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility937 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI3 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics4 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
GLoBIGlobal Biotic Interactionsbiotic interactions↗