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 Gahnia tristis has left across the world's sequence archives.
At a glance
DNA specimens4
Marker genes4
GenBank sequences7
eDNA detections3
Countries2
The DNA barcodea real sequence read deposited for this species
Gahnia tristis genes for 5.8S rRNA, ITS2, 26S rRNA, complete and partial sequence, specimen_voucher: OKAY:Hirahara 20361
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.
★COI-5P★rbcL4★ITS3★ITS2
animal barcodeplant barcodefungal barcode
08Occurrence & distribution
Record type646 records
Wild obs. + sensor213
Museum / vouchered433
Range
Area of Occupancy AOO1 400 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 accuracy46% within 1 km
≤100 m 63≤1 km 19≤10 km 10>10 km 86
178 georeferenced · 35 without coordinates
Open the mapobservation + sensor213
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 accuracy9% within 1 km
≤100 m 1≤10 km 10
11 georeferenced · 422 without coordinates
Open the institutions mapphysical evidence433
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 institutions31 of 43 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
Guangzhou, CN
127
Kunming, CN
36
Guilin, CN
29
Guangzhou, CN
29
Nishihara, JP
21
Tsukuba, JP
15
Kew, GB
15
Odawara, JP
14
Xiamen, CN
11
Changsha, CN
11
Moscow State Universitylocation not on record
10
SCAUlocation not on record
8
Chengdu, CN
8
Nishihara, JP
7
Taipei, TW
7
Beijing, CN
7
Bronx, US
6
Hangzhou, CN
6
Nagasaki University - Fisherieslocation not on record
6
Institute for Agricultural Bacteriology and Fermentation Biologylocation not on record
5
Chengdu, CN
3
Xining, CN
3
Shanghai, CN
3
Shenzhen, CN
2
South China Normal Universitylocation not on record
2
Zhejiang Universitylocation not on record
2
Wuhan, CN
2
Nagano City, JP
2
Yangling, CN
1
Honolulu, US
1
Paris, FR
1
Herbarium of South China Botanical Gardenlocation not on record
1
University of Stellenboschlocation not on record
1
LDlocation not on record
1
Zhuzhou, CN
1
Wuhan, CN
1
J.F.Oberlin Universitylocation not on record
1
FJFClocation not on record
1
Jishou Universitylocation not on record
1
Kagoshima, JP
1
Sendai, JP
1
Beijing, CN
1
Seoul, KR
1
43 institutions · 412 of 433 vouchered records shown · 20 without an institution code
09Environmental DNA3 detections
Where the DNA of Gahnia tristis 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
Hillsides
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 median14.7 °C 8.90–20.6
Seasonal swing summer↔winter19.2 °C
Max temp (day)17.3 °C 11.1–23.4
Min temp (night)11.2 °C 4.70–17.7
Precipitation286 mm/mo 240–333
Air humidity67.4 % 65.4–69.4
Moisture balance179 mm/mo 112–246
Vapour deficit612 Pa 465–759
Wind speed4.10 m/s 3.10–5.00
Cloud cover51.1 % 45.9–56.3
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 Facility646 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI3 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics4 specimens↗
NCBIUS National Library of Medicinesequences↗
Open Tree of LifeOpenTreephylogeny backbone↗
GLoBIGlobal Biotic Interactionsbiotic interactions↗