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 Adiantum trapeziforme has left across the world's sequence archives.
At a glance
DNA specimens4
Marker genes4
GenBank sequences6
eDNA detections1
Countries3
The DNA barcodea real sequence read deposited for this species
Adiantum trapeziforme voucher Eric Schuettpelz 1713 (MEXU, US) ribulose-1,5-bisphosphate carboxylase/oxygenase large subunit (rbcL) gene, partial cds; chloroplast
Marker genes sequenced
★ 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★rbcL5★rbcLatrnH-psbA
plant barcodemarker
06Genome at a glanceCCDB
The complete instruction manualAdiantum trapeziforme 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 = 60 n = 30
Chromosome-count records — grouped by value · 2n = full set, n = gamete · click a value for sources & references
2n 601×CCDB · Cave1963
CCDB · Cave1963 — Roy & Sinha 1961
n 302×CCDB · Cave1962 · CCDB · Cave1963
CCDB · Cave1962 — Abraham et al. 1962
CCDB · Cave1963 — Roy & Sinha 1961
08Occurrence & distribution
Record type1 182 records
Wild obs. + sensor299
Museum / vouchered882
Other1
Origin
Native1
Introduced3
Range
Area of Occupancy AOO2 608 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 accuracy80% within 1 km
≤100 m 109≤1 km 47≤10 km 24>10 km 16
196 georeferenced · 103 without coordinates
Open the mapobservation + sensor299
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 accuracy83% within 1 km
≤100 m 238≤1 km 16≤10 km 41>10 km 10
305 georeferenced · 577 without coordinates
Open the institutions mapphysical evidence882
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 99 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
144
Saint Louis, US
99
Museo Nacional de Costa Rica (MNCR)location not on record
57
Bronx, US
53
Mexico City, MX
42
National Biodiversity Institute, Costa Ricalocation not on record
40
Chicago, US
40
Antiguo Cuscatlán, SV
34
University of Stellenboschlocation not on record
22
Tuxtla Gutiérrez, MX
19
Instituto de Ecología y Sistemáticalocation not on record
19
Viña del Mar, CL
17
Berlin, DE
12
Madison, US
12
Austin, US
12
Sociedad para el Estudio de los Recursos Bióticos de Oaxaca, A. C.location not on record
11
Juriquilla, MX
11
South Kensington, GB
10
San José, CR
10
Autlán de Navarro, MX
9
Philadelphia, US
9
León, NI
8
Guatemala City, GT
8
Austin, US
8
LDlocation not on record
7
Auckland, NZ
7
Tuxtla Gutiérrez, MX
6
ASUlocation not on record
6
Mexico City, MX
6
Ann Arbor, US
6
St. Paul, US
6
Cambridge, US
5
Chicago, US
5
Wellington, NZ
5
Edinburgh, GB
4
Calabar, NG
4
Fort Worth, US
4
Ciudad de México, MX
4
Miami, US
3
Tapachula, MX
3
Instituto de Ecología Aplicada, Universidad Autónoma de Tamaulipaslocation not on record
3
Tampa, US
3
Durham, US
3
Burlington, US
3
WTUlocation not on record
3
Minister of Sustainable Development, Climate Change & Solid Waste Managementlocation not on record
3
Montréal, CA
3
FLASlocation not on record
3
San Francisco, US
3
Giardini Botanici Hanburylocation not on record
2
Universidad Juárez Autónoma de Tabascolocation not on record
2
Minia, EG
2
Honolulu, US
2
Bloomington, US
2
Mérida, MX
2
BMlocation not on record
2
US
2
BISHlocation not on record
2
Facultad de Biología, Universidad Veracruzana, Región Xalapalocation not on record
2
MEXUlocation not on record
1
San Jose State University, Museum of Birds and Mammalslocation not on record
1
Madrid, ES
1
Mishler Lablocation not on record
1
Instituto Nacional de Pesquisas da Amazônia (INPA)location not on record
1
Indiana State Universitylocation not on record
1
Kew, GB
1
McWane Science Centerlocation not on record
1
HEMlocation not on record
1
Claremont, US
1
Stockholm, SE
1
Moscow State Universitylocation not on record
1
Provincial Museum of Albertalocation not on record
1
New Brunswick, US
1
CASlocation not on record
1
Cornell Universitylocation not on record
1
Plocation not on record
1
Elocation not on record
1
Chapel Hill, US
1
Smithsonian Institution, National Museum of Natural Historylocation not on record
1
Xiamen, CN
1
NO DISPONIBLElocation not on record
1
Riverside, US
1
Departamento de Sistematica e Ecologialocation not on record
1
Dublin, IE
1
Universidad de la Amazonia (UniAmazonia)location not on record
1
HAWlocation not on record
1
Museo naturalistico del Frignano Ferruccio Minghellilocation not on record
1
Phoenix, US
1
Instituto de Investigaciones Biológicas, Universidad Veracruzana, Región Xalapalocation not on record
1
OTSlocation not on record
1
Seychelles National Herbariumlocation not on record
1
Pullman, US
1
Chongqing Museumlocation not on record
1
Muséum National d'Histoire Naturellelocation not on record
1
Gump Stationlocation not on record
1
Museu Paraense Emílio Goeldilocation not on record
1
Santa Barbara, US
1
La Paz, MX
1
Vancouver, CA
1
99 institutions · 874 of 882 vouchered records shown · 8 without an institution code
09Environmental DNA1 detections
Where the DNA of Adiantum trapeziforme 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
Countries1
Signal confidence: weakweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 1 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 median26.6 °C 26.6–26.6
Seasonal swing summer↔winter1.30 °C
Max temp (day)27.2 °C
Min temp (night)25.8 °C
Precipitation162 mm/mo
Air humidity61.7 %
Vapour deficit1,324 Pa
Cloud cover18.5 %
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.
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility1 182 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI1 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↗
Paleobiology DatabasePBDB consortiumfossil record↗