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 Canotia holacantha has left across the world's sequence archives.
At a glance
DNA specimens3
Marker genes4
GenBank sequences4
eDNA detections23
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★rbcL1★ITS2★ITS2
plant barcodefungal barcode
06Genome at a glanceCCDB · GoaT
The complete instruction manualCanotia holacantha 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 size180 930 000 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
THIS GENOME Canotia holacantha0.18 Gb
INSECT0.25 Gb
HUMAN3.2 Gb
WHEAT17 Gb
FERN Tmesipteris160.45 Gb
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.
CCDB · ipcn-api-dl — Hanson, L., K. A. McMahon, M. A. T. Johnson & M. D. Bennett. 2001. First nuclear DNA C-values for 25 angiosperm families. Ann. Bot. (Oxford) 87: 251–258.
CCDB · kew — Hanson L, McMahon KA, Johnson MAT, Bennett MD. 2001. First nuclear DNA C-values for 25 angiosperm families. Annals of Botany 87: 251-258
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 1 158≤1 km 106≤10 km 49>10 km 28
1 341 georeferenced · 333 without coordinates
Open the mapobservation + sensor1 674
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 accuracy77% within 1 km
≤100 m 24≤1 km 47≤10 km 15>10 km 6
92 georeferenced · 281 without coordinates
Open the institutions mapphysical evidence373
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 45 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
ASUlocation not on record
130
Phoenix, US
55
Flagstaff, US
48
Riverside, US
19
Bronx, US
15
Claremont, US
10
San Jose State University, Museum of Birds and Mammalslocation not on record
8
EL PASO, US
7
Mexico City, MX
6
Logan, US
4
USFSlocation not on record
4
Santa Barbara, US
3
Pullman, US
3
San Diego, US
3
Florida Museum of Natural History- Zoology, Paleontology & Paleobotanylocation not on record
2
Albuquerque, US
2
Durango, US
2
Hermosillo, MX
2
Denver, US
1
Bangkok, TH
1
Northridge, US
1
Musee des Dinosaures d'Esperaza (Aude)location not on record
1
Chicago, US
1
Wellington, NZ
1
Tampa, US
1
US
1
Canadian Department of Agriculturelocation not on record
1
Wuzhou, CN
1
US
1
Moscow, US
1
San Luis Obispo, US
1
Saint Louis, US
1
San Angelo, US
1
Arizona Western Collegelocation not on record
1
Orem, US
1
MEXUlocation not on record
1
USONlocation not on record
1
La Paz, MX
1
Henderson, US
1
Burlington, US
1
Bloomington, US
1
University of Alberta Museumslocation not on record
1
The University of Arizonalocation not on record
1
Pocatello, US
1
Weber State Universitylocation not on record
1
45 institutions · 350 of 373 vouchered records shown · 23 without an institution code
09Environmental DNA23 detections
Where the DNA of Canotia holacantha 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 found23
Studies independent surveys2
Countries2
Signal confidence: moderateweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 23 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.
Measured at samplingin-field
pH5.80 4.40–8.70
Conductivity33.0 µS/cm 16.0–2,129
Organic carbon1.79 % 0.22–5.83
Water content9.76 % 3.86–50.8
Nitrate-N4.00 mg/kg 2.00–17.0
Phosphorus30.0 mg/kg 2.00–321
Clay14.9 % 0.95–47.1
Sand71.9 % 21.5–97.0
Depth0 m 0–0.2
SoilKandosolTenosolsChromosolsRudosolSodosolLatLon out of range
20 samples with on-site data · median with range · describes the sample, not the organism
Modelled climatemodelled
−15°Ctemperature across detection sites+40°C
Temperature median14.6 °C 5.70–19.9
Seasonal swing summer↔winter10.8 °C
Max temp (day)18.0 °C 9.80–25.4
Min temp (night)10.7 °C 2.10–15.4
Precipitation89.9 mm/mo 48.1–103
Air humidity58.6 % 56.1–62.5
Moisture balance-3.00 mm/mo -73.4–32.7
Vapour deficit724 Pa 342–982
Wind speed2.60 m/s 2.00–4.40
Cloud cover22.8 % 9.40–51.5
CHELSA 1981–2010, ~9 km grid, at location & month of 20 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.
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility2 047 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI23 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics3 specimens↗
NCBIUS National Library of Medicinesequences↗
Open Tree of LifeOpenTreephylogeny backbone↗
CCDBChromosome Counts DB · Tel Aviv U.genome & karyotype↗
GoaTGenomes on a Tree · Sangergenome & karyotype↗
PloiDBPloidy Databasegenome & karyotype
WikidataWikimedia Foundationstructured facts↗