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 Cyperus houghtonii has left across the world's sequence archives.
At a glance
DNA specimens2
Marker genes3
GenBank sequences3
eDNA detections2
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★rbcL2★rbcLa
plant barcode
06Genome at a glanceCCDB
The complete instruction manualCyperus houghtonii 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.
Chromosome-count records — grouped by value · 2n = full set, n = gamete · click a value for sources & references
2n 782×CCDB · cyper-only · CCDB · ipcn-api-dl
CCDB · cyper-only — Lve, . & D. Lve1981
CCDB · ipcn-api-dl — Love, A. & D. Love. 1981c. In Chromosome number reports LXXIII. Taxon 30: 845–851.
08Occurrence & distribution
Record type393 records
Wild obs. + sensor69
Museum / vouchered323
Other1
Range
Area of Occupancy AOO1 020 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 accuracy58% within 1 km
≤100 m 33≤1 km 3≤10 km 2>10 km 24
62 georeferenced · 7 without coordinates
Open the mapobservation + sensor69
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 accuracy26% within 1 km
≤100 m 14≤1 km 31≤10 km 117>10 km 12
174 georeferenced · 149 without coordinates
Open the institutions mapphysical evidence323
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 institutions29 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
Madison, US
68
Ann Arbor, US
40
Québec, CA
23
Montréal, CA
20
St. Paul, US
18
WINlocation not on record
17
Burlington, US
17
Green Bay, US
13
University of New Hampshirelocation not on record
8
Museo civico La Terra e l'Uomo di Crocetta del Montellolocation not on record
8
Acadia Universitylocation not on record
8
Chongqing Museumlocation not on record
8
Toronto, CA
7
Chicago, US
4
Montréal, CA
4
Moscow, US
3
University of Alberta Museumslocation not on record
3
Logan, US
3
Tampa, US
3
University of Winnipeglocation not on record
3
San Angelo, US
3
Bloomington, US
2
Vancouver, CA
2
Paris, FR
2
McWane Science Centerlocation not on record
2
University of Wisconsinlocation not on record
2
Uppsala, SE
2
Bangkok, TH
2
Beijing, CN
2
Bronx, US
2
Christchurch, NZ
1
Auckland, NZ
1
Whitewater, US
1
University of Stellenboschlocation not on record
1
Chapel Hill, US
1
University of Lethbridgelocation not on record
1
Gujarat Biodiversity Gene Banklocation not on record
1
University of Guelph, OAC Herbariumlocation not on record
1
Institut und Museum fuer Geologie und Palaeontologielocation not on record
1
US
1
Dresden, DE
1
International Salmonella Centre (W.H.O.)location not on record
1
Saint John, CA
1
GB
1
MeiseBGlocation not on record
1
45 institutions · 314 of 323 vouchered records shown · 9 without an institution code
09Environmental DNA2 detections
Where the DNA of Cyperus houghtonii 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 found2
Studies independent surveys1
Countries2
Signal confidence: weakweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 2 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 median23.6 °C 20.6–26.5
Seasonal swing summer↔winter22.4 °C
Max temp (day)27.0 °C 25.0–29.0
Min temp (night)20.0 °C 16.4–23.6
Precipitation206 mm/mo 141–270
Air humidity63.6 % 60.6–66.6
Moisture balance66.1 mm/mo 5.60–127
Vapour deficit1,056 Pa 953–1,159
Wind speed3.20 m/s 2.80–3.70
Cloud cover38.2 % 29.5–46.9
CHELSA 1981–2010, ~9 km grid, at location & month of 2 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.
WikipediaWikimedia Foundation3 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility393 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI2 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics2 specimens↗
NCBIUS National Library of Medicinesequences↗
GRIN TaxonomyUSDA-ARSdistribution & uses↗
CCDBChromosome Counts DB · Tel Aviv U.genome & karyotype↗
GLoBIGlobal Biotic Interactionsbiotic interactions↗