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 Silphium terebinthinaceum has left across the world's sequence archives.
At a glance
DNA specimens9
Marker genes5
GenBank sequences10
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.
★matK1★rbcL3★rbcLa★ITS6★ITS2
plant barcodefungal barcode
06Genome at a glanceGoaT
The complete instruction manualSilphium terebinthinaceum 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.
Genome sizehow big the whole instruction manual is
Genome size7 418 130 000 bp
Measured in base pairs (bp) — the individual letters of DNA (human ≈ 3.2 Gb, a bacterium a few million). The chart places this genome on a logarithmic scale — each step to the right is ten times bigger — among reference organisms. Across species a bigger genome loosely tracks with larger cells, slower growth and lower-energy lifestyles (powered flight favours small genomes) — yet it does not imply more genes or a more advanced organism (the long-standing C-value paradox).
BACTERIUM Carsonella ruddii0.00016 Gb
FUNGUS0.04 Gb
INSECT0.25 Gb
HUMAN3.2 Gb
THIS GENOME Silphium terebinthinaceum7.42 Gb
WHEAT17 Gb
FERN Tmesipteris160.45 Gb
08Occurrence & distribution
Record type6 764 records
Wild obs. + sensor6 514
Museum / vouchered244
Other6
Origin
Native2
Range
Area of Occupancy AOO11 164 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 accuracy88% within 1 km
≤100 m 3 953≤1 km 736≤10 km 193>10 km 472
5 354 georeferenced · 1 160 without coordinates
Open the mapobservation + sensor6 514
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 accuracy35% within 1 km
≤100 m 8≤1 km 27≤10 km 52>10 km 14
101 georeferenced · 143 without coordinates
Open the institutions mapphysical evidence244
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 institutions42 of 55 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
Saint Louis, US
34
Ann Arbor, US
27
Chongqing Museumlocation not on record
14
Mississippi State, US
10
Chicago, US
10
Jackson, US
9
University of Stellenboschlocation not on record
9
Museo civico La Terra e l'Uomo di Crocetta del Montellolocation not on record
8
Whitewater, US
7
Bangkok, TH
7
Knoxville, US
7
Museum of the Rockieslocation not on record
7
Dekalb, US
6
Green Bay, US
5
Madison, US
5
Tuscaloosa, US
4
Bloomington, US
4
Jefferson City, US
4
Chapel Hill, US
3
Bronx, US
3
Flagstaff, US
3
Minia, EG
3
BAYLUlocation not on record
3
Denver, US
2
DOI/NPS, Mississippi National River & Recreation Arealocation not on record
2
China Agricultural Universitylocation not on record
2
University of Alberta Museumslocation not on record
2
University of Guelph, OAC Herbariumlocation not on record
2
Burlington, US
2
GB
2
Fayetteville, US
2
Richmond, US
2
Springfield, US
2
Dover, US
1
Florida Museum of Natural History- Zoology, Paleontology & Paleobotanylocation not on record
1
McWane Science Centerlocation not on record
1
PHlocation not on record
1
Chicago, US
1
Pittsburg, US
1
Macomb, US
1
Ypsilanti, US
1
San Angelo, US
1
Turlock, US
1
Beijing, CN
1
Columbus State Universitylocation not on record
1
Mount Pleasant, US
1
US
1
Claremont, US
1
US
1
Philadelphia, US
1
San Luis Obispo, US
1
Millersville, US
1
Pullman, US
1
Northridge, US
1
Boise, US
1
55 institutions · 234 of 244 vouchered records shown · 10 without an institution code
09Environmental DNA4 detections
Where the DNA of Silphium terebinthinaceum 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 median18.7 °C 17.9–25.2
Seasonal swing summer↔winter27.0 °C
Max temp (day)22.6 °C 21.5–30.3
Min temp (night)17.0 °C 15.1–21.4
Precipitation103 mm/mo 95.5–112
Air humidity60.2 % 59.5–60.4
Moisture balance-11.6 mm/mo -45.8–-10.1
Vapour deficit853 Pa 833–1,292
Wind speed3.30 m/s 2.10–3.90
Cloud cover44.2 % 31.9–44.4
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.
GBIFGlobal Biodiversity Information Facility6 764 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↗
GoaTGenomes on a Tree · Sangergenome ~7.42 Gbp↗