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 Commelina tuberosa has left across the world's sequence archives.
At a glance
DNA specimens4
Marker genes2
GenBank sequences1
eDNA detections3
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★rbcL
plant barcode
06Genome at a glanceCCDB
The complete instruction manualCommelina tuberosa 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.
CCDB · ipcn-api-dl — Palomino H., G., B. V. Benítez, P. M. Almeraya & P. M. Ruaro. 1990. Estudios cromosómicos en seis especies Mexicanas de Comelináceas. Bol. Soc. Bot. México 50: 77–87.
CCDB · book-indian_vol2 — Darlington, C.D. 1929a, b ; Ander- son, E. & Sax, K. 1936; Mehra, P.N. & Sachdeva, S.K. 1976c, 1979 ; Sachdeva, S.K. 1977
CCDB · book-fedorov — Darlington 1929a, c
CCDB · book-fedorov — Anderson E., Sax 1936
CCDB · book-atlas-flowering-plants — Anderson & S. 1936
CCDB · kew — Bennett MD, Smith JB. 1976. Nuclear DNA amounts in angiosperms. Philosophical Transactions of the Royal Society of London Series B-Biological Sciences 274: 227-274.
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
Coordinate accuracy85% within 1 km
≤100 m 350≤1 km 186≤10 km 75>10 km 18
629 georeferenced · 221 without coordinates
Open the mapobservation + sensor850
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 accuracy97% within 1 km
≤100 m 416≤1 km 15≤10 km 14>10 km 1
446 georeferenced · 467 without coordinates
Open the institutions mapphysical evidence913
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 institutions44 of 67 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
Durango, MX
216
Mexico City, MX
92
Guasave, MX
87
Ann Arbor, US
77
Mexico City, MX
75
Saint Louis, US
58
Riverside, US
28
Austin, US
26
Juriquilla, MX
20
Ciudad de México, MX
19
Kew, GB
19
Autlán de Navarro, MX
16
Córdoba, AR
15
University of Stellenboschlocation not on record
10
Ciudad de México, MX
9
Anchorage, US
8
Antiguo Cuscatlán, SV
8
Puebla, MX
7
SLU Artdatabankenlocation not on record
7
Giardini Botanici Hanburylocation not on record
7
MEXUlocation not on record
7
San Isidro, AR
7
Tuxtla Gutiérrez, MX
7
Chapingo, MX
6
Berlin, DE
5
Culiacán, MX
5
Oskarshamn, SE
4
Chicago, US
4
Corrientes, AR
4
South Kensington, GB
3
Cambridge, US
3
GB
3
San Jose State University, Museum of Birds and Mammalslocation not on record
3
Adam Mickiewicz University in Poznańlocation not on record
2
La Paz, MX
2
Claremont, US
2
BMlocation not on record
2
M-VascularPlantslocation not on record
2
Centro Interdisciplinario de Investigacion para el Desarrollo Integral Regional Unidad Oaxacalocation not on record
2
Herbarium of South China Botanical Gardenlocation not on record
2
Centro de Investigación en Biodiversidad y Conservación, Universidad Autónoma del Estado de Moreloslocation not on record
2
Zacatecas, MX
2
Guatemala City, GT
2
Laboratorio de Ictiologialocation not on record
1
San Diego, US
1
Salamanca, ES
1
MAlocation not on record
1
Paris, FR
1
EL PASO, US
1
Zapopan, MX
1
IEBlocation not on record
1
Guatemala, GT
1
CASlocation not on record
1
CICYTEXlocation not on record
1
Feira de Santana, BR
1
National Institute of Biological Resourceslocation not on record
1
Toluca, MX
1
University of Zhejianglocation not on record
1
Podgorica, ME
1
Bronx, US
1
LDlocation not on record
1
McWane Science Centerlocation not on record
1
Campo Mourão, BR
1
Dehra Dun, IN
1
UTFPR-CPlocation not on record
1
ASUlocation not on record
1
Instituto de Investigaciones Biológicas, Universidad Veracruzana, Región Xalapalocation not on record
1
67 institutions · 909 of 913 vouchered records shown · 4 without an institution code
09Environmental DNA3 detections
Where the DNA of Commelina tuberosa 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
Countries2
Signal confidence: weakweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 3 detections have coordinates
Open the map2 countries0
Humid temperate forest
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 median16.2 °C 15.9–16.2
Seasonal swing summer↔winter3.60 °C
Max temp (day)20.9 °C 18.2–20.9
Min temp (night)10.7 °C 10.7–13.9
Precipitation186 mm/mo 39.1–186
Air humidity67.5 % 67.5–74.0
Moisture balance76.6 mm/mo -80.9–76.6
Vapour deficit596 Pa 472–596
Wind speed1.70 m/s 1.70–4.10
Cloud cover30.9 % 30.9–54.4
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.
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility1 766 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
Paleobiology DatabasePBDB consortiumfossil record↗
GLoBIGlobal Biotic Interactionsbiotic interactions↗