Pteroceltis tatarinowii a species of tree endemic to China and the only extant member of the genus Pteroceltis. Common names include blue sandalwood, wingceltis or qing tan (). Trees grow to 20 m tall and are used for timber, the bark fiber to make Xuan paper, and oil is extracted from its seeds.
No narrative description available for this taxon yet.
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 Pteroceltis tatarinowii has left across the world's sequence archives.
At a glance
DNA specimens13
Marker genes3
GenBank sequences7
eDNA detections10
Countries1
The DNA barcodea real sequence read deposited for this species
Pteroceltis tatarinowii voucher BJ2 small subunit ribosomal RNA gene, partial sequence; internal transcribed spacer 1, 5.8S ribosomal RNA gene, and internal transcribed spacer 2, complete sequence; and large subunit ribosomal RNA gene, partial sequence
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.
★matK2★rbcL4★ITS1
plant barcodefungal barcode
06Genome at a glanceCCDB
The complete instruction manualPteroceltis tatarinowii 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.
Chromosome-count records — grouped by value · 2n = full set, n = gamete · click a value for sources & references
2n 202×CCDB · ipcn-api-dl
CCDB · ipcn-api-dl — Oginuma, K., P. H. Raven & H. Tobe. 1990. Karyomorphology and relationships of Celtidaceae and Ulmaceae (Urticales). Bot. Mag. (Tokyo) 103: 113–131.
CCDB · ipcn-api-dl — Morawetz, W. & M. R. A. Samuel. 1989. Karyological patterns in the Hamamelidae. Syst. Assoc. Special Vol. 40(2): 131–135.
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 origin36.5 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
08Occurrence & distribution
Record type794 records
Wild obs. + sensor54
Museum / vouchered738
Cultivated / captive2
Range
Area of Occupancy AOO984 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 25≤1 km 11≤10 km 1>10 km 6
43 georeferenced · 11 without coordinates
Open the mapobservation + sensor54
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 accuracy60% within 1 km
≤1 km 6≤10 km 3>10 km 1
10 georeferenced · 728 without coordinates
Open the institutions mapphysical evidence738
Cultivated / Captivenot free-living
A living individual in a botanical garden, zoo or nursery — cultivated or kept, not free-living.
Coordinate accuracy100% within 1 km
≤1 km 1
1 georeferenced · 1 without coordinates
Open the mapnot free-living2
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 institutions34 of 59 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
Beijing, CN
161
Yangling, CN
65
Central China Normal Universitylocation not on record
61
Nanjing, CN
52
Kunming, CN
41
Guangzhou, CN
37
Guilin, CN
34
Zhengzhou, CN
25
Hunan Hupingshan National Nature Reservelocation not on record
18
Wuhan, CN
18
Institute for Agricultural Bacteriology and Fermentation Biologylocation not on record
16
Xian, CN
15
Changsha, CN
12
Xinxiang, CN
12
“Manash Kozybayev North Kazakhstan University" NPLClocation not on record
11
Chengdu, CN
9
Beijing Normal Universitylocation not on record
9
Siouxland Heritage Museumlocation not on record
9
Philadelphia, US
8
Zhuzhou, CN
7
Xian, CN
6
Guiyang, CN
6
Xining, CN
5
WNNUlocation not on record
5
Guangzhou, CN
5
Hangzhou, CN
5
Chinese Academy of Forestrylocation not on record
5
University of Stellenboschlocation not on record
4
Wuhan, CN
4
Seoul, KR
4
Chengdu, CN
4
Shanghai, CN
4
Herbarium of South China Botanical Gardenlocation not on record
3
Guangxi Institute of Traditional Medical and Pharmaceutical Scienceslocation not on record
3
Central China Agricultural Universitylocation not on record
3
Museum of the Rockieslocation not on record
3
Beijing Natural History Museumlocation not on record
3
Lanzhou, CN
2
New Haven, US
2
Port Elizabeth Museum (Bayworld)location not on record
2
Zhejiang Universitylocation not on record
2
Shanghai, CN
2
Jiujiang Forestry Institutelocation not on record
2
Sanda, JP
2
Saint Louis, US
2
Tianjin Natural History Museumlocation not on record
2
South China Normal Universitylocation not on record
2
Taipei, TW
2
UFMSlocation not on record
1
Bronx, US
1
Jishou Universitylocation not on record
1
Awka, NG
1
Taipei, TW
1
Guizhou Forestry Schoollocation not on record
1
Hangzhou Normal Collegelocation not on record
1
SDFlocation not on record
1
GZUlocation not on record
1
Uppsala, SE
1
Fort Worth, US
1
59 institutions · 725 of 738 vouchered records shown · 13 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 DNA10 detections
Where the DNA of Pteroceltis tatarinowii 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 found10
Studies independent surveys1
Countries1
Signal confidence: weakweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 10 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 median21.0 °C 16.8–27.6
Seasonal swing summer↔winter24.7 °C
Max temp (day)25.2 °C 19.8–30.6
Min temp (night)16.4 °C 12.8–24.2
Precipitation264 mm/mo 132–355
Air humidity63.0 % 60.5–68.9
Moisture balance91.8 mm/mo -6.80–246
Vapour deficit1000 Pa 623–1,404
Wind speed2.90 m/s 2.50–3.50
Cloud cover40.2 % 36.3–51.1
CHELSA 1981–2010, ~9 km grid, at location & month of 3 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.
WikipediaWikimedia Foundation6 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility794 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI10 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics13 specimens↗
NCBIUS National Library of Medicinesequences↗
GRIN TaxonomyUSDA-ARSdistribution & uses↗
Open Tree of LifeOpenTreephylogeny backbone↗
CCDBChromosome Counts DB · Tel Aviv U.genome & karyotype↗
PloiDBPloidy Databasegenome & karyotype
WikidataWikimedia Foundationstructured facts↗