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 Saxifraga bronchialis has left across the world's sequence archives.
At a glance
DNA specimens28
Marker genes7
eDNA detections26
Countries3
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.
★matK★rbcL★rbcLa★trnL-F★ITS★ITS1★ITS2
plant barcodefungal barcode
06Genome at a glanceCCDB
The complete instruction manualSaxifraga bronchialis 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 · book-ipcn73-74 — ZHUKOVA, P.G., V.V. PETROVSKY, & T.N. PLIEVA. 1973. The chromosome numbers and taxonomy of some plant species from Siberia and Far East. (in Russian) Bot. zurn. (Moscow & Leningrad) 58: 1331-1342.
2n 1501×CCDB · book-fedorov
CCDB · book-fedorov — Skovsted 1934b
Ploidy records — measured levels and diploid/polyploid inferences · click for sources
How far back this lineage goes — and how we know. Everything here is measured in Ma, short for “mega-annum”: millions of years ago. The chart reads left to right like a calendar of the Earth, from the deep past on the left to today at the right edgetop to bottom like a core drilled through the Earth, from the deep past at the top down to today at the bottom.
At a glance
DNA clock origin1.74 Ma TimeTree
When this lineage existed
How to read this: the coloured strip along the bottomdown the left is the geological calendar — the standard epochs (Pliocene, Pleistocene…) every museum uses, shown so you can see which chapter of Earth's history this lineage lived in. This lineage is a young one, so the strip is zoomed in to epochs — the finer subdivisions inside a period. The orange marker is the DNA clock: DNA accumulates mutations at a roughly steady rate, so comparing this species' DNA with its relatives estimates when the lineage split off — independently of any fossil.
DNA clock origin
How it livedPBDB
Dietphotoautotroph
08Occurrence & distribution
Record type4 428 records
Wild obs. + sensor3 710
Museum / vouchered717
Cultivated / captive1
Origin
Native1
Range
Area of Occupancy AOO10 028 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 accuracy84% within 1 km
≤100 m 2 134≤1 km 311≤10 km 236>10 km 243
2 924 georeferenced · 786 without coordinates
Open the mapobservation + sensor3 710
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 accuracy36% within 1 km
≤100 m 28≤1 km 78≤10 km 162>10 km 29
297 georeferenced · 420 without coordinates
Open the institutions mapphysical evidence717
Cultivated / Captivenot free-living
A living individual in a botanical garden, zoo or nursery — cultivated or kept, not free-living.
Coordinate accuracy
no georeferenced coordinates · 1 records without
Open the mapnot free-living1
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 institutions52 of 85 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
Moscow State Universitylocation not on record
90
University of Alberta Museumslocation not on record
61
WTUlocation not on record
57
Denver, US
49
University of Lethbridgelocation not on record
45
Albuquerque, US
43
Missoula, US
31
Bozeman, US
25
Victoria, CA
22
Museo civico La Terra e l'Uomo di Crocetta del Montellolocation not on record
18
Pullman, US
17
Moscow, US
12
Flagstaff, US
11
IWEP FEB RASlocation not on record
11
DOI/FWS, Kenai National Wildlife Refugelocation not on record
9
Vancouver, CA
9
Olocation not on record
9
Institute of Applied Ecology, Academia Sinicalocation not on record
8
Tampa, US
7
Stockholm, SE
7
University of Stellenboschlocation not on record
6
Saint Louis, US
6
Chongqing Museumlocation not on record
6
St. Paul, US
6
Université Lavallocation not on record
6
Riverside, US
6
MeiseBGlocation not on record
5
EL PASO, US
5
Durango, US
5
GBS RAN - Glavny Botanichesky Sad Rossijskoj Akademii Nauklocation not on record
4
Bronx, US
4
BRNUlocation not on record
4
Logan, US
4
Tacoma, US
3
Florida Museum of Natural History- Zoology, Paleontology & Paleobotanylocation not on record
3
JMSlocation not on record
3
Whitehorse, CA
3
Research Collection of B. A. Bennettlocation not on record
3
Bangkok, TH
3
Grand Junction, US
3
Forest Survey and Design Institute, Forestry Administrative Bureau of Daxinganlinglocation not on record
3
Boise, US
3
Yangling, CN
2
Cheney, US
2
Burlington, US
2
Yukon Universitylocation not on record
2
Davis, US
2
San Angelo, US
2
DOI/NPS, Little Rock Central High School National Historic Sitelocation not on record
2
Corvallis, US
2
Anchorage, US
2
Uppsala, SE
2
Phoenix, US
2
Durham, US
2
Turlock, US
2
Paris, FR
2
Northeastern Forestry Universitylocation not on record
2
Yellowstone National Park Herbariumlocation not on record
2
Mississippi State, US
1
Adam Mickiewicz University in Poznańlocation not on record
1
HJAEFlocation not on record
1
Portland, US
1
ASUlocation not on record
1
Frankfurt am Main
1
Davenport, US
1
Chicago, US
1
DOI/NPS, Greenbelt Parklocation not on record
1
Caldwell, US
1
Mexico City, MX
1
Institute of the biological problems of the North FEB RASlocation not on record
1
Provincia di Livornolocation not on record
1
Edinburgh, GB
1
Canadian Museum of Naturelocation not on record
1
Kew, GB
1
Provo, US
1
Tempe, US
1
Cambridge, US
1
Trondheim, NO
1
CASlocation not on record
1
New Brunswick, US
1
Rocky Mountain Biological Laboratorylocation not on record
1
Santa Barbara, US
1
Dekalb, US
1
Columbia, US
1
STUlocation not on record
1
85 institutions · 694 of 717 vouchered records shown · 23 without an institution code
Cultivated / Captivenot free-living
A living individual in a botanical garden, zoo or nursery — cultivated or kept, not free-living.
09Environmental DNA26 detections
Where the DNA of Saxifraga bronchialis 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 found26
Studies independent surveys1
Countries2
Signal confidence: weakweighed across independent studies, places & mapped detections
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 median9.60 °C 6.90–11.4
Seasonal swing summer↔winter35.3 °C
Max temp (day)14.2 °C 12.5–15.4
Min temp (night)5.80 °C 0.8–7.50
Precipitation121 mm/mo 64.7–132
Air humidity61.5 % 50.9–63.2
Moisture balance16.5 mm/mo -26.5–46.6
Vapour deficit465 Pa 385–547
Wind speed3.50 m/s 2.70–5.70
Cloud cover73.2 % 32.6–74.0
CHELSA 1981–2010, ~9 km grid, at location & month of 12 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 Facility4 428 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI26 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics28 specimens↗
GRIN TaxonomyUSDA-ARSdistribution & uses↗
Open Tree of LifeOpenTreephylogeny backbone↗
CCDBChromosome Counts DB · Tel Aviv U.genome & karyotype↗
giftgenome & karyotype
PloiDBPloidy Databasegenome & karyotype
Paleobiology DatabasePBDB consortiumfossil record↗
GLoBIGlobal Biotic Interactionsbiotic interactions↗