Solanum douglasii is a species of plant in the family Solanaceae known by the common name greenspot nightshade. It is native to the northern half of Mexico and the southwestern south-central United States. Its habitat includes scrub and woodland.
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 Solanum douglasii has left across the world's sequence archives.
At a glance
DNA specimens2
Marker genes2
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★rbcLa
plant barcode
06Genome at a glanceCCDB · TreeOfSex
The complete instruction manualSolanum douglasii 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.
Chromosomes2n = 24 n = 12
Ploidydiploid inferred
Chromosome-count records — grouped by value · 2n = full set, n = gamete · click a value for sources & references
CCDB · ipcn-api-dl — Rao, G. R. & O. A. Kumar. 1983b. Interrelationships among diploid species of the Solanum nigrum L. complex. J. Indian Bot. Soc. 62: 25–31.
CCDB · ipcn-api-dl — RAO, G. R. & A. Ganapathi. 1980. Speciation in Solanum nigrum L. complex. New Bot. 7: 11–13.
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
Coordinate accuracy94% within 1 km
≤100 m 3 436≤1 km 526≤10 km 162>10 km 110
4 234 georeferenced · 1 134 without coordinates
Open the mapobservation + sensor5 368
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 accuracy62% within 1 km
≤100 m 275≤1 km 521≤10 km 440>10 km 48
1 284 georeferenced · 1 222 without coordinates
Open the institutions mapphysical evidence2 506
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 institutions67 of 97 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
San Diego, US
316
Claremont, US
250
Riverside, US
227
Santa Barbara, US
202
ASUlocation not on record
153
Bronx, US
99
Austin, US
88
San Luis Obispo, US
84
Saint Louis, US
81
US
69
Chicago, US
62
Phoenix, US
60
Bloomington, US
54
Flagstaff, US
48
Mexico City, MX
47
Durango, MX
42
Los Angeles, US
34
Davis, US
33
Austin, US
33
Irvine, US
29
Severin-McDaniel Insect Collectionlocation not on record
29
Canadian Department of Agriculturelocation not on record
25
EL PASO, US
23
Long Beach, US
21
Tampa, US
18
Northridge, US
18
Albuquerque, US
18
Santa Cruz, US
18
DOI/NPS, Little Rock Central High School National Historic Sitelocation not on record
15
Arcata, US
13
US
13
Giardini Botanici Hanburylocation not on record
11
Kew, GB
10
San Bernardino, US
9
San Jose, US
9
South Kensington, GB
7
Catalina Island Conservancylocation not on record
7
Bangkok, TH
6
Pullman, US
6
Adelaide, AU
6
Chapingo, MX
6
Ensenada, MX
6
University of Stellenboschlocation not on record
5
CASlocation not on record
4
Tapachula, MX
4
MEXUlocation not on record
4
Calabar, NG
4
Instituto de Investigaciones Biológicas, Universidad Veracruzana, Región Xalapalocation not on record
3
Berlin, DE
3
The University of Arizonalocation not on record
3
Nagano City, JP
3
USFSlocation not on record
3
Mérida, MX
3
Wuzhou, CN
3
La Paz, MX
3
Fort Worth, US
2
Jena Microbial Resource Collectionlocation not on record
2
San Francisco, US
2
Ciudad de México, MX
2
Henderson, US
2
Angwin, US
2
Museo Entomologico de Leonlocation not on record
2
Cambridge, US
2
Universidad de El Salvadorlocation not on record
2
Dekalb, US
2
Facultad de Zootecnia y Ecología, Universidad Autónoma de Chihuahualocation not on record
2
Fullerton, US
2
Chongqing Museumlocation not on record
2
Antiguo Cuscatlán, SV
2
BMlocation not on record
2
Puebla, MX
1
Denver, US
1
Sangmiung Universitylocation not on record
1
BAYLUlocation not on record
1
Madison, US
1
Universidad Nacional Agrarialocation not on record
1
Centro de Investigación en Biodiversidad y Conservación, Universidad Autónoma del Estado de Moreloslocation not on record
1
Arizona State University Biocollectionslocation not on record
1
DOI/NPS, Colonial National Historical Parklocation not on record
1
Guasave, MX
1
Zacatecas, MX
1
Corvallis, US
1
Provo, US
1
WTUlocation not on record
1
HEMlocation not on record
1
San José, CR
1
Sociedad para el Estudio de los Recursos Bióticos de Oaxaca, A. C.location not on record
1
McWane Science Centerlocation not on record
1
GB
1
San Diego Natural History Museum, Herbariumlocation not on record
1
Oskarshamn, SE
1
Culiacán, MX
1
Vancouver, CA
1
Philadelphia, US
1
Mexico City, MX
1
Canberra, AU
1
University of Zhejianglocation not on record
1
97 institutions · 2 407 of 2 506 vouchered records shown · 99 without an institution code
09Environmental DNA1 detections
Where the DNA of Solanum douglasii 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
Coastal Sage Scrub/Chaparral with Adenostoma…
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 median18.9 °C 18.9–18.9
Seasonal swing summer↔winter10.4 °C
Max temp (day)24.7 °C
Min temp (night)14.2 °C
Precipitation2.80 mm/mo
Air humidity61.7 %
Moisture balance-144 mm/mo
Vapour deficit837 Pa
Wind speed1.30 m/s
Cloud cover15.8 %
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 Foundation1 languages↗
GBIFGlobal Biodiversity Information Facility8 568 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI1 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics2 specimens↗
GRIN TaxonomyUSDA-ARSdistribution & uses↗
Open Tree of LifeOpenTreephylogeny backbone↗
CCDBChromosome Counts DB · Tel Aviv U.genome & karyotype↗
PloiDBPloidy Databasegenome & karyotype
Tree of SexTree of Sex Consortiumgenome & karyotype↗
GLoBIGlobal Biotic Interactionsbiotic interactions↗