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 Aristida divaricata has left across the world's sequence archives.
At a glance
DNA specimens1
Marker genes3
GenBank sequences5
eDNA detections1
Countries1
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★ITS3
plant barcodefungal barcode
06Genome at a glanceCCDB
The complete instruction manualAristida divaricata 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 = 22 n = 11
Ploidydiploid inferred
Chromosome-count records — grouped by value · 2n = full set, n = gamete · click a value for sources & references
2n 221×CCDB · ipcn-api-dl
CCDB · ipcn-api-dl — Sánchez-Ken, J. & P. D. Aranda. 1995. Nǔmeros cromoso|3micos de algunas especies Mexicanas de Aristida (Poaceae: Aristideae). Ann. Missouri Bot. Gard. 82: 593–595.
n 111×CCDB · Cave1958
CCDB · Cave1958 — Gould 1958
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 accuracy85% within 1 km
≤100 m 15≤1 km 8≤10 km 4
27 georeferenced · 8 without coordinates
Open the mapobservation + sensor35
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 accuracy80% within 1 km
≤100 m 327≤1 km 57≤10 km 80>10 km 19
483 georeferenced · 428 without coordinates
Open the institutions mapphysical evidence911
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 institutions57 of 84 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
University of Stellenboschlocation not on record
123
Durango, MX
75
Guasave, MX
71
Mexico City, MX
46
Saint Louis, US
43
Albuquerque, US
40
Bronx, US
37
ASUlocation not on record
36
Flagstaff, US
31
Mexico City, MX
29
DOI/NPS, Colonial National Historical Parklocation not on record
25
Austin, US
24
Chapingo, MX
24
Wuzhou, CN
21
Juriquilla, MX
19
Denver, US
18
Zacatecas, MX
17
Claremont, US
12
Comisión Técnico Consultiva de Coeficientes de Agostaderolocation not on record
10
Musee des Dinosaures d'Esperaza (Aude)location not on record
10
Riverside, US
10
Ann Arbor, US
9
Austin, US
8
San Luis Potosí, MX
8
Ciudad Juárez, MX
8
Logan, US
7
Lubbock, US
7
Torreón, MX
6
EL PASO, US
6
DOI/NPS, Greenbelt Parklocation not on record
6
San Diego, US
6
US
5
Mexico City, MX
5
Phoenix, US
5
Bangkok, TH
5
CASlocation not on record
4
USFSlocation not on record
4
Kew, GB
4
Texas A&M Universitylocation not on record
4
Chicago, US
4
Centro de Investigación Regional Norte Centro, Campo Experimental La Campana, Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuariaslocation not on record
4
BClocation not on record
4
Canadian Department of Agriculturelocation not on record
3
New Mexico State Universitylocation not on record
3
Santa Barbara, US
3
Toluca, MX
3
Lincoln, US
3
Davis, US
3
Columbia, US
3
Montecillo, Texcoco, MX
3
Chongqing Museumlocation not on record
3
Burlington, US
2
USONlocation not on record
2
Puebla, MX
2
Irvine, US
2
Bloomington, US
2
San Luis Obispo, US
2
Los Angeles, US
2
New Mexico State Universitylocation not on record
2
MEXUlocation not on record
2
Moscow, US
1
Giardini Botanici Hanburylocation not on record
1
San Jose State University, Museum of Birds and Mammalslocation not on record
1
Fort Worth, US
1
Calabar, NG
1
Ciudad de México, MX
1
Ciudad de México, MX
1
Edmonton, CA
1
Facultad de Zootecnia y Ecología, Universidad Autónoma de Chihuahualocation not on record
1
The University of Arizonalocation not on record
1
Hermosillo, MX
1
TLAXlocation not on record
1
Ixtacuixtla de Mariano Matamoros, MX
1
Tapachula, MX
1
La Paz, MX
1
HCIBlocation not on record
1
Instituto de Investigaciones Biológicas, Universidad Veracruzana, Región Xalapalocation not on record
1
Florida Museum of Natural History- Zoology, Paleontology & Paleobotanylocation not on record
1
Autlán de Navarro, MX
1
Jurica-Suchy Nature Museumlocation not on record
1
San Angelo, US
1
Instituto de Ecología Aplicada, Universidad Autónoma de Tamaulipaslocation not on record
1
Tampa, US
1
Boise, US
1
84 institutions · 909 of 911 vouchered records shown · 2 without an institution code
09Environmental DNA1 detections
Where the DNA of Aristida divaricata 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 found1
Studies independent surveys1
Signal confidence: weakweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 1 detections have coordinates
Open the map0 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.
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 Facility950 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI1 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics1 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
GLoBIGlobal Biotic Interactionsbiotic interactions↗