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 tenerum has left across the world's sequence archives.
At a glance
DNA specimens4
Marker genes3
GenBank sequences10
eDNA detections3
Countries2
The DNA barcodea real sequence read deposited for this species
Adiantum tenerum voucher Daniel Tejero-Diez 5936a (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★rbcL9trnH-psbA
plant barcodemarker
06Genome at a glanceCCDB
The complete instruction manualAdiantum tenerum 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 — Sinha, B. M. B. & A. K. VERMA. 1977. Chromosome relationships and evolution of Adiantum capillus-veneris, A. tenerum and A. tetraphyllum. Nucleus 20: 109–112.
CCDB · book-ipcn72 — GOMEZ-PIGNATARO, L.D. 1971. Ricerche citologiche sulle Pteridof ite della Costa Rica. 1. Atti Ist. Bot. Univ. Lab. Crittogam. Pavia (Ser. 6.) 7: 29-31.
CCDB · book-ipcn75-78 — Sinha & Verma 1977
CCDB · Cave1962 — Abraham et al. 1962
CCDB · Cave1963 — Roy & Sinha 1961
08Occurrence & distribution
Record type1 907 records
Wild obs. + sensor750
Museum / vouchered1 155
Other2
Origin
Native3
Range
Area of Occupancy AOO4 456 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 379≤1 km 71≤10 km 54>10 km 59
563 georeferenced · 187 without coordinates
Open the mapobservation + sensor750
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 accuracy72% within 1 km
≤100 m 252≤1 km 31≤10 km 76>10 km 34
393 georeferenced · 762 without coordinates
Open the institutions mapphysical evidence1 155
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 institutions64 of 96 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
145
Saint Louis, US
140
Chicago, US
127
Bronx, US
126
Mexico City, MX
47
Mérida, MX
42
Instituto de Ecología y Sistemáticalocation not on record
40
Miami, US
31
South Kensington, GB
30
Viña del Mar, CL
23
Minia, EG
22
University of Stellenboschlocation not on record
18
Guatemala City, GT
18
Austin, US
17
Tampa, US
14
ASUlocation not on record
13
MAPRlocation not on record
13
Burlington, US
12
National Biodiversity Institute, Costa Ricalocation not on record
12
Tapachula, MX
12
St. Paul, US
11
Juriquilla, MX
10
Brasília, BR
9
Jena Microbial Resource Collectionlocation not on record
9
Wellington, NZ
7
LDlocation not on record
7
Tuxtla Gutiérrez, MX
7
San Jose State University, Museum of Birds and Mammalslocation not on record
7
WTUlocation not on record
7
Austin, US
6
Universidad Juárez Autónoma de Tabascolocation not on record
6
Montréal, CA
6
Chongqing Museumlocation not on record
6
Ann Arbor, US
6
McWane Science Centerlocation not on record
6
Tuxtla Gutiérrez, MX
6
Calabar, NG
5
Fort Worth, US
5
Kew, GB
4
Paris, FR
4
Riverside, US
4
Berlin, DE
4
Minister of Sustainable Development, Climate Change & Solid Waste Managementlocation not on record
3
Turku, FI
3
Wuzhou, CN
3
Instituto de Investigaciones Biológicas, Universidad Veracruzana, Región Xalapalocation not on record
3
Auckland, NZ
3
Madison, US
3
Edinburgh, GB
3
Corrientes, AR
3
Giardini Botanici Hanburylocation not on record
3
JBRJlocation not on record
2
MEXUlocation not on record
2
San Francisco de Campeche, MX
2
Ciudad de México, MX
2
Guasave, MX
2
Durham, US
2
Claremont, US
2
TAIElocation not on record
2
Chicago, US
2
MAlocation not on record
2
Universidad Nacional de Colombia (UNAL)location not on record
2
Instituto de Ecología Aplicada, Universidad Autónoma de Tamaulipaslocation not on record
2
EL PASO, US
2
Instituto de Investigación de Recursos Biológicos Alexander von Humboldt (IAvH)location not on record
1
Florida Museum of Natural History- Zoology, Paleontology & Paleobotanylocation not on record
1
León, NI
1
Chapel Hill, US
1
Altos de Pipe, VE
1
IECOSlocation not on record
1
Departamento de Sistematica e Ecologialocation not on record
1
Salvador, BR
1
Stockholm, SE
1
Cornell Universitylocation not on record
1
Puebla, MX
1
Philadelphia, US
1
Clemson, US
1
Cambridge, US
1
DEAL Martiniquelocation not on record
1
Zürich, CH
1
Morgantown, US
1
Plocation not on record
1
LGlocation not on record
1
HUAlocation not on record
1
Dresden, DE
1
Bloomington, US
1
Aarhus, DK
1
Mexico City, MX
1
Universidad de Orientelocation not on record
1
Toronto, CA
1
Antiguo Cuscatlán, SV
1
Bangkok, TH
1
Trondheim, NO
1
Puerto Ayora, EC
1
COLlocation not on record
1
Columbia, US
1
96 institutions · 1 129 of 1 155 vouchered records shown · 25 without an institution code
09Environmental DNA3 detections
Where the DNA of Adiantum tenerum 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
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 median19.4 °C 16.4–22.3
Seasonal swing summer↔winter6.10 °C
Max temp (day)23.5 °C 22.3–24.6
Min temp (night)15.3 °C 10.2–20.3
Precipitation118 mm/mo 51.4–185
Air humidity62.8 % 53.3–72.3
Moisture balance-19.9 mm/mo -78.6–38.7
Vapour deficit798 Pa 729–867
Wind speed3.70 m/s 3.40–4.00
Cloud cover24.6 % 23.8–25.4
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.
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility1 907 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↗