Compounds documented for Dioscorea polygonoides across natural-product and food-composition databases — not just the ~150 nutrients on a classic label ("nutritional dark matter").
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 Dioscorea polygonoides has left across the world's sequence archives.
At a glance
DNA specimens8
Marker genes4
GenBank sequences10
eDNA detections4
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.
★matK3★rbcL7★rbcLatrnH-psbA
plant barcodemarker
06Genome at a glanceCCDB
The complete instruction manualDioscorea polygonoides 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.
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
Coordinate accuracy37% within 1 km
≤100 m 5≤1 km 2≤10 km 1>10 km 11
19 georeferenced · 4 without coordinates
Open the mapobservation + sensor23
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 accuracy75% within 1 km
≤100 m 202≤1 km 24≤10 km 67>10 km 9
302 georeferenced · 634 without coordinates
Open the institutions mapphysical evidence936
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 institutions50 of 102 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
Saint Louis, US
167
Durango, MX
167
Bronx, US
64
Mexico City, MX
53
Universidad Nacional de Colombia (UNAL)location not on record
34
Mérida, MX
29
South Kensington, GB
24
University of Stellenboschlocation not on record
21
Kew, GB
21
National Biodiversity Institute, Costa Ricalocation not on record
18
Salvador, BR
18
Museo Nacional de Costa Rica (MNCR)location not on record
15
San José, CR
13
Universidad de Antioquia (UdeA)location not on record
12
León, NI
11
Antiguo Cuscatlán, SV
11
Universidad de Caldas (UCaldas)location not on record
10
UFBAlocation not on record
10
San Jose State University, Museum of Birds and Mammalslocation not on record
9
Tapachula, MX
8
Laboratorio de Ictiologialocation not on record
8
Austin, US
8
Université de Bordeauxlocation not on record
7
JBRJlocation not on record
7
Universidad Distrital Francisco José de Caldas (UDistrital)location not on record
6
Ann Arbor, US
6
Chicago, US
6
St. Augustine, TT
6
Feira de Santana, BR
6
Sociedad para el Estudio de los Recursos Bióticos de Oaxaca, A. C.location not on record
5
San Francisco de Campeche, MX
5
Santa Teresa, BR
5
Tampa, US
5
INMAlocation not on record
5
Fundación Jardín Botánico Joaquín Antonio Uribe de Medellínlocation not on record
5
Chongqing Museumlocation not on record
5
Fort Worth, US
4
Universidade Federal do Ceara, Departamento de Biologialocation not on record
4
Instituto de Investigación de Recursos Biológicos Alexander von Humboldt (IAvH)location not on record
4
Altos de Pipe, VE
4
Berlin, DE
3
UNIVASFlocation not on record
3
Wlocation not on record
3
Tuxtla Gutiérrez, MX
3
Santa Cruz de la Sierra, BO
3
Fredericksburg, US
3
Universidade Federal do Vale do São Franciscolocation not on record
3
Mérida, MX
2
Teresina, BR
2
QCNElocation not on record
2
Stockholm, SE
2
Davis, US
2
Anton de Kom University of Surinamelocation not on record
2
Universiti Sains Malaysialocation not on record
2
EL PASO, US
2
Miami, US
2
Station d'Ecologie de Lamtolocation not on record
2
UFRPElocation not on record
2
UFPIlocation not on record
2
GB
2
Fortaleza, BR
2
Austin, US
2
HUAlocation not on record
2
Instituto de Investigaciones Biológicas, Universidad Veracruzana, Región Xalapalocation not on record
2
Tuxtla Gutiérrez, MX
2
Chapingo, MX
2
Río Palenque Science Centerlocation not on record
2
CEPLAClocation not on record
2
Jardín Botánico de Cartagena "Guillermo Piñeres" (JBC)location not on record
1
USP-IBlocation not on record
1
Chaguaramas, TT
1
Porto Alegre, BR
1
Universidad de Guayaquillocation not on record
1
Herbario Selva Central Oxapampa - estación biológica del Jardín Botánico de Missourilocation not on record
1
Giardini Botanici Hanburylocation not on record
1
UFPRlocation not on record
1
Madison, US
1
Juriquilla, MX
1
McWane Science Centerlocation not on record
1
Alcaldía Municipal de Garzón en Huilalocation not on record
1
Auckland, NZ
1
Ciudad de México, MX
1
UFMGlocation not on record
1
LDlocation not on record
1
Cenargenlocation not on record
1
Escuela Agrícola Panamericanalocation not on record
1
Burlington, US
1
La Paz, BO
1
Instituto Amazónico de Investigaciones Científicas SINCHIlocation not on record
1
Mexico City, MX
1
LGlocation not on record
1
Museu Paraense Emílio Goeldilocation not on record
1
Uniwersytet Śląski w Katowicachlocation not on record
1
Taipei, TW
1
Riverside, US
1
Fundación Desarrollo y Ambiente FUNDAlocation not on record
1
WCS Colombialocation not on record
1
UnBlocation not on record
1
Instituto Amazónico de Investigaciones Científicas - SINCHIlocation not on record
1
UFMSlocation not on record
1
Montpellier, FR
1
arosemena tola, EC
1
102 institutions · 923 of 936 vouchered records shown · 13 without an institution code
09Environmental DNA4 detections
Where the DNA of Dioscorea polygonoides 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 found4
Studies independent surveys1
Signal confidence: weakweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 4 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 Facility1 000 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI4 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics8 specimens↗
NCBIUS National Library of Medicinesequences↗
LOTUSNatural Products (Wikidata)compounds↗
NPASSNat. Product Activity & Species Sourcecompounds↗
GRIN TaxonomyUSDA-ARSdistribution & uses↗
Open Tree of LifeOpenTreephylogeny backbone↗
CCDBChromosome Counts DB · Tel Aviv U.genome & karyotype↗
PloiDBPloidy Databasegenome & karyotype
GLoBIGlobal Biotic Interactionsbiotic interactions↗