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 Polygala cruciata has left across the world's sequence archives.
At a glance
DNA specimens7
Marker genes5
GenBank sequences7
eDNA detections5
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★ITS1★ITS2
plant barcodefungal barcode
06Genome at a glanceCCDB
The complete instruction manualPolygala cruciata 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 = 36 n = 18
Ploidydiploid inferred
Chromosome-count records — grouped by value · 2n = full set, n = gamete · click a value for sources & references
2n 361×CCDB · book-fedorov
CCDB · book-fedorov — Lewis W. H., Davis 1962
n 181×CCDB · Cave1962
CCDB · Cave1962 — Lewis & Davis 1962.
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 accuracy100% within 1 km
≤100 m 1
1 georeferenced · 1 without coordinates
Open the mapobservation + sensor2
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 14≤1 km 143≤10 km 307>10 km 96
560 georeferenced · 216 without coordinates
Open the institutions mapphysical evidence776
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 institutions47 of 65 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
Philadelphia, US
153
Chapel Hill, US
80
Madison, US
69
Bangkok, TH
54
Miami, US
43
Chongqing Museumlocation not on record
37
New Haven, US
29
Bloomington, US
28
University of Stellenboschlocation not on record
21
Bronx, US
19
Ann Arbor, US
18
Florida Museum of Natural History- Zoology, Paleontology & Paleobotanylocation not on record
16
University of Southern Mississippilocation not on record
14
BAYLUlocation not on record
13
Saint Louis, US
13
Staten Island, US
12
Tall Timbers Research Stationlocation not on record
11
Austin, US
9
Columbia, US
9
Mississippi State, US
8
US
7
Valdosta State Universitylocation not on record
6
San Angelo, US
4
AUAlocation not on record
4
Jena Microbial Resource Collectionlocation not on record
4
Millersville, US
4
Fort Worth, US
4
Wuzhou, CN
4
Fayetteville, US
4
Davenport, US
3
Little Rock, US
3
Clemson, US
3
Western Carolina Universitylocation not on record
3
GAlocation not on record
3
EL PASO, US
2
University of Tennessee at Chattanoogalocation not on record
2
Knoxville, US
2
New Brunswick, US
2
Williamsburg, US
2
Asheville, US
2
Washington, US
1
Kingston, US
1
Phoenix, US
1
Norfolk, US
1
Tennessee Technological Universitylocation not on record
1
University of Guelph, OAC Herbariumlocation not on record
1
Dover, US
1
Moscow, US
1
University of North Carolina at Pembrokelocation not on record
1
Chicago, US
1
Durham, US
1
Tampa, US
1
College Park, US
1
Burlington, US
1
Texas Lutheran Universitylocation not on record
1
Cheney, US
1
Edmonton, CA
1
Oskarshamn, SE
1
Canadian Department of Agriculturelocation not on record
1
Chicago, US
1
Mexico City, MX
1
Green Bay, US
1
DOI/NPS, Greenbelt Parklocation not on record
1
South Kensington, GB
1
Northridge, US
1
65 institutions · 749 of 776 vouchered records shown · 27 without an institution code
09Environmental DNA5 detections
Where the DNA of Polygala cruciata 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 found5
Studies independent surveys1
Countries1
Signal confidence: weakweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 5 detections have coordinates
Open the map1 country0
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 median8.60 °C 8.60–8.60
Seasonal swing summer↔winter26.4 °C
Max temp (day)13.5 °C
Min temp (night)5.60 °C
Precipitation73.5 mm/mo
Air humidity60.5 %
Moisture balance12.4 mm/mo
Vapour deficit441 Pa
Wind speed4.40 m/s
Cloud cover54.4 %
CHELSA 1981–2010, ~9 km grid, at location & month of 1 detection point · 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 Facility778 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI5 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics7 specimens↗
NCBIUS National Library of Medicinesequences↗
Open Tree of LifeOpenTreephylogeny backbone↗
CCDBChromosome Counts DB · Tel Aviv U.genome & karyotype↗
PloiDBPloidy Databasegenome & karyotype
Paleobiology DatabasePBDB consortiumfossil record↗