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 Houstonia pusilla has left across the world's sequence archives.
At a glance
DNA specimens4
Marker genes4
eDNA detections1
Countries1
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★ITS2trnH-psbA
plant barcodefungal barcodemarker
06Genome at a glanceCCDB
The complete instruction manualHoustonia pusilla 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 · ipcn-api-dl — Terrell, E. E., W. H. Lewis, H. Robinson, H. & J. W. Nowicke. 1986. Phylogenetic implications of diverse seed types, chromosome numbers, and pollen morphology in Houstonia (Rubiaceae). Amer. J. Bot. 73(1): 103–115.
CCDB · Cave1958 — W. H. Lewis 1958d
CCDB · Cave1962 — Lewis 1962a
n 82×CCDB · ipcn-api-dl · CCDB · Cave1962
CCDB · ipcn-api-dl — Terrell, E. E., W. H. Lewis, H. Robinson, H. & J. W. Nowicke. 1986. Phylogenetic implications of diverse seed types, chromosome numbers, and pollen morphology in Houstonia (Rubiaceae). Amer. J. Bot. 73(1): 103–115.
CCDB · Cave1962 — Lewis 1962a
Ploidy records — measured levels and diploid/polyploid inferences · click for sources
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
Coordinate accuracy85% within 1 km
≤100 m 5 892≤1 km 850≤10 km 354>10 km 855
7 951 georeferenced · 1 749 without coordinates
Open the mapobservation + sensor9 700
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 accuracy48% within 1 km
≤100 m 71≤1 km 168≤10 km 225>10 km 36
500 georeferenced · 412 without coordinates
Open the institutions mapphysical evidence912
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 77 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
Wuzhou, CN
187
Chapel Hill, US
83
Fort Worth, US
82
Jena Microbial Resource Collectionlocation not on record
63
Saint Louis, US
61
Emporia, US
31
Jackson, US
27
GAlocation not on record
21
Williamsburg, US
20
Austin, US
20
Chongqing Museumlocation not on record
18
Tuscaloosa, US
18
Pittsburg, US
18
US
15
College Park, US
15
Tampa, US
13
BAYLUlocation not on record
13
Bloomington, US
13
Columbia, US
13
Clemson, US
12
Fayetteville, US
10
Knoxville, US
9
DOI/NPS, Mississippi National River & Recreation Arealocation not on record
8
University of Stellenboschlocation not on record
7
Valdosta State Universitylocation not on record
7
AUAlocation not on record
6
University of Tennessee at Chattanoogalocation not on record
6
Tall Timbers Research Stationlocation not on record
6
Asheville, US
5
GB
5
Texas Lutheran Universitylocation not on record
5
EL PASO, US
4
Dover, US
4
University of Southern Mississippilocation not on record
4
Fairfax, US
4
Little Rock, US
4
Springfield, US
4
Tennessee Technological Universitylocation not on record
4
Burlington, US
3
DOI/NPS, Selma to Montgomery National Historic Traillocation not on record
3
University of North Carolina at Pembrokelocation not on record
3
Conway, US
3
Stephenville, US
3
Flagstaff, US
3
Dekalb, US
3
Chadron, US
3
Jefferson City, US
3
Norfolk, US
3
ASUlocation not on record
2
Mississippi State, US
2
San Angelo, US
2
China Agricultural Universitylocation not on record
2
Dresden, DE
2
Canadian Department of Agriculturelocation not on record
1
Grand Junction, US
1
Davenport, US
1
Tempe, US
1
Bangkok, TH
1
LDlocation not on record
1
Fredericksburg, US
1
Edmonton, CA
1
Smithsonian Institution, National Museum of Natural Historylocation not on record
1
DOI/NPS, Greenbelt Parklocation not on record
1
UMKClocation not on record
1
Due West, US
1
Chicago, US
1
Lincoln, US
1
Northridge, US
1
Conway, US
1
Weymouth Woods Sandhills Nature Preservelocation not on record
1
North Carolina Museum of Natural Scienceslocation not on record
1
Kirksville, US
1
Denton, US
1
Western Carolina Universitylocation not on record
1
Riverside, US
1
Denver, US
1
Philadelphia, US
1
77 institutions · 909 of 912 vouchered records shown · 3 without an institution code
09Environmental DNA1 detections
Where the DNA of Houstonia pusilla 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 found1
Studies independent surveys1
Countries1
Signal confidence: weakweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 1 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 median15.9 °C 15.9–15.9
Seasonal swing summer↔winter18.6 °C
Max temp (day)22.2 °C
Min temp (night)11.2 °C
Precipitation68.0 mm/mo
Air humidity57.6 %
Moisture balance-44.2 mm/mo
Vapour deficit764 Pa
Wind speed4.10 m/s
Cloud cover35.1 %
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.
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility10 613 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI1 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics4 specimens↗
GRIN TaxonomyUSDA-ARSdistribution & uses↗
CCDBChromosome Counts DB · Tel Aviv U.genome & karyotype↗
PloiDBPloidy Databasegenome & karyotype
GLoBIGlobal Biotic Interactionsbiotic interactions↗