Cercis siliquastrum, commonly known as the Judas tree or Judas-tree, is a small deciduous tree from Southern Europe and Western Asia which is noted for its prolific display of deep pink flowers in spring.
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 Cercis siliquastrum has left across the world's sequence archives.
At a glance
DNA specimens10
Marker genes5
GenBank sequences10
eDNA detections9
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.
★rbcL2★rbcLa★trnL-F★ITS8★ITS2
plant barcodefungal barcode
06Genome at a glanceCCDB
The complete instruction manualCercis siliquastrum 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 · ita-fl — CORTI R. - 1930. Nuovi reperti sulla cariologia di alcune Leguminosae.. N. Giorn. Bot. Ital., n.s. , 37: 679-680.
CCDB · ipcn-api-dl — Fernandes, A., M. F. SANTOS & H. FATIMA. 1975. Contribution à la connaissance cytotaxinomique des Spermatophyta du Portugal. IV. Leguminosae (Suppl. 1). Bol. Soc. Brot., sér. 2 49: 173–196.
CCDB · ipcn-api-dl — Kuzmanov, B. A. 1975. In IOPB chromosome number reports XLIX. Taxon 24: 501–516.
CCDB · book-ipcn75-78 — Kuzmanov 1975
CCDB · book-ipcn75-78 — Fernandes & Santos 1975
CCDB · book-fedorov — Corti 1930b (D. 1955)
CCDB · book-atlas-flowering-plants — Corti 1930b
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 origin15.5 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
How it livedPBDB
Dietphotoautotroph
08Occurrence & distribution
Record type20 673 records
Wild obs. + sensor19 767
Museum / vouchered433
Cultivated / captive370
Fossil2
Other101
Origin
Native52
Introduced158
Range
Area of Occupancy AOO40 760 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 accuracy76% within 1 km
≤100 m 9 863≤1 km 1 114≤10 km 3 235>10 km 156
14 368 georeferenced · 5 399 without coordinates
Open the mapobservation + sensor19 767
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 accuracy58% within 1 km
≤100 m 19≤1 km 66≤10 km 60>10 km 2
147 georeferenced · 286 without coordinates
Open the institutions mapphysical evidence433
Cultivated / Captivenot free-living
A living individual in a botanical garden, zoo or nursery — cultivated or kept, not free-living.
Coordinate accuracy50% within 1 km
≤100 m 2≤1 km 1≤10 km 3
6 georeferenced · 364 without coordinates
Open the mapnot free-living370
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 institutions55 of 87 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
LDlocation not on record
57
Berlin, DE
41
Moscow State Universitylocation not on record
17
Barcelona, ES
16
MAlocation not on record
15
Adam Mickiewicz University in Poznańlocation not on record
11
MeiseBGlocation not on record
11
València, ES
10
BDBClocation not on record
10
Badajoz, ES
7
Santiago de Compostela, ES
7
CICYTEXlocation not on record
7
BClocation not on record
6
Christchurch, NZ
6
Institut und Museum fuer Geologie und Palaeontologielocation not on record
6
Jaén, ES
6
Entomological Society of Latvialocation not on record
5
Auckland, NZ
5
Bern, CH
5
Rishon Le Zion, IL
5
CJBGlocation not on record
5
Adelaide, AU
5
Museo Entomologico de Leonlocation not on record
5
College of the Atlantic, Museumlocation not on record
4
Vitoria, ES
4
South Kensington, GB
4
Wlocation not on record
4
Canberra, AU
4
WTUlocation not on record
3
Bangkok, TH
3
Salvador, BR
3
Córdoba, AR
3
Mount Annan, AU
3
Görlitz, DE
3
Rotorua, NZ
3
Riverside, US
3
Dresden, DE
3
Alicante, ES
3
Salamanca, ES
3
San Jose State University, Museum of Birds and Mammalslocation not on record
2
Universidad de La Salle (La Salle)location not on record
2
Sevilla, ES
2
Oskarshamn, SE
2
UIBlocation not on record
2
Salzburg, AT
2
Bourges, FR
2
Sion, CH
1
Durham, US
1
Pamplona, ES
1
Armidale, AU
1
ISAlocation not on record
1
CASlocation not on record
1
Zürich, CH
1
Zürich, CH
1
Laboratorio de Ictiologialocation not on record
1
John May Museum of Natural Historylocation not on record
1
University of Stellenboschlocation not on record
1
Parkville, AU
1
Chapel Hill, US
1
BRNUlocation not on record
1
Dekalb, US
1
Tilburg, NL
1
Tampa, US
1
Mexico City, MX
1
UFBAlocation not on record
1
Provincia di Livornolocation not on record
1
Davis, US
1
Santa Barbara, US
1
Monastir, TN
1
JBRJlocation not on record
1
Philadelphia, US
1
Boise, US
1
Valparaiso, CL
1
San Sebastián, ES
1
Henry Brockhouse Collectionlocation not on record
1
Brookings, US
1
PRClocation not on record
1
Mississippi State, US
1
Uniwersytet Śląski w Katowicachlocation not on record
1
Madrid, ES
1
Bronx, US
1
Universidad del Pais Vasco (UPV/EHU)location not on record
1
Córdoba, ES
1
San Jose, US
1
ESP010location not on record
1
Porrentruy, CH
1
Bratislava, SK
1
87 institutions · 376 of 433 vouchered records shown · 56 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 DNA9 detections
Where the DNA of Cercis siliquastrum 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 found9
Studies independent surveys1
Countries1
Signal confidence: weakweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 9 detections have coordinates
Open the map1 country0
Urban parks and large gardens
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 median21.1 °C 21.1–21.1
Seasonal swing summer↔winter17.2 °C
Max temp (day)25.8 °C
Min temp (night)15.2 °C
Precipitation40.1 mm/mo
Air humidity53.9 %
Moisture balance-122 mm/mo
Vapour deficit1,155 Pa
Wind speed2.90 m/s
Cloud cover39.2 %
CHELSA 1981–2010, ~9 km grid, at location & month of 1 detection point · 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 Foundation17 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility20 673 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI9 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics10 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
Paleobiology DatabasePBDB consortiumfossil record↗
WikidataWikimedia Foundationstructured facts↗
GLoBIGlobal Biotic Interactionsbiotic interactions↗