Citrullus lanatus
(Thunb.) Matsum. & Nakai · speciesAt a glance
Sources15 archives
Databases and archives Citrullus lanatus's data was compiled from.
WikipediaWikimedia Foundation22 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility11 974 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI31 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics37 specimens↗
NCBIUS National Library of Medicinesequences↗
FooDBThe Metabolomics Innovation Centrecompounds↗
LOTUSNatural Products (Wikidata)compounds↗
NPASSNat. Product Activity & Species Sourcecompounds↗
GRIN TaxonomyUSDA-ARSdistribution & uses↗
Open Tree of LifeOpenTreephylogeny backbone↗
CCDBChromosome Counts DB · Tel Aviv U.genome & karyotype↗
GoaTGenomes on a Tree · Sangergenome & karyotype↗
PloiDBPloidy Databasegenome & karyotype
GLoBIGlobal Biotic Interactionsbiotic interactions↗Every layer below draws on the sources above — open one to explore it, or use ← → to move between tabs.
A tsamma in the Kalahari Desert Naturalized in Australia Watermelon (Citrullus lanatus) is a flowering plant species of the Cucurbitaceae family and the name of its edible fruit. A scrambling and trailing vine-like plant, it is a highly cultivated fruit worldwide, with more than 1,000 varieties. Watermelon is grown in favorable climates from tropical to temperate regions worldwide for its large edible fruit, which is a berry with a hard rind and no internal divisions, and is botanically called a pepo. The sweet, juicy flesh is usually deep red to pink, with many black seeds, although seedless varieties exist. The fruit can be eaten raw or pickled, and the rind is edible after cooking. It may also be consumed as a juice or as an ingredient in mixed beverages. Kordofan melons from Sudan are the closest relatives and may be progenitors of modern, cultivated watermelons. Wild watermelon seeds were found in Uan Muhuggiag, a prehistoric site in Libya that dates to approximately 3500. Watermelons were domesticated in Egypt by 2000, although they were not the sweet modern variety. Sweet dessert watermelons spread across the Mediterranean world during Roman times. Considerable breeding effort has developed disease-resistant varieties. Many cultivars are available that produce mature fruit within 100 days of planting. In 2017, China produced about two-thirds of the world total of watermelons.
No narrative description available for this taxon yet.
Size & morphology12
Life cycle & reproduction12
Diet & foraging2
Habitat & environment13
Physiology & chemistry2
Other traits2
Compounds documented for Citrullus lanatus across natural-product and food-composition databases — not just the ~150 nutrients on a classic label ("nutritional dark matter").
Compound class profile5 classes
Documented compounds5 775 total
| Compound | Class | Amount | Source |
|---|---|---|---|
| (Z,Z)-9,12-Octadecadienoic acid | 13,114 mg/100g | FooDB | |
| Elaidic acid | 13,000 mg/100g | FooDB | |
| Sugars | 7,600 mg/100g | FooDB | |
| Sucrose | 7,600 mg/100 g | FooDB | |
| L-Glutamic acid | 5,699 mg/100g | FooDB | |
| Arginine | 4,897 mg/100g | FooDB | |
| D-Fructose | 3,500 mg/100g | FooDB |
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 Citrullus lanatus has left across the world's sequence archives.
At a glance
★ 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.
The complete instruction manual Citrullus lanatus 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.
Genome sizehow big the whole instruction manual is
Measured in base pairs (bp) — the individual letters of DNA (human ≈ 3.2 Gb, a bacterium a few million). The chart places this genome on a logarithmic scale — each step to the right is ten times bigger — among reference organisms. Across species a bigger genome loosely tracks with larger cells, slower growth and lower-energy lifestyles (powered flight favours small genomes) — yet it does not imply more genes or a more advanced organism (the long-standing C-value paradox).
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.
2n 2226×GoaT · Kew Plant DNA C-values Database · CCDB · ipcn-api-dl · CCDB · book-ipcn67-71 +4
2n 142×CCDB · book-indian_vol1 · CCDB · book-fedorov
2n 241×CCDB · book-indian_vol1
n 113×CCDB · ipcn-api-dl · CCDB · book-ipcn75-78
n 121×CCDB · Cave1959
diploid1×GoaT · Kew Plant DNA C-values Database
polyploid inferred1×PloiDB · family-scale
Sequencing statusassembly quality — how far to trust these numbers
Assembly level tells you how finished the sequence is — from fragmented contigs, through scaffolds, up to a full chromosome-level assembly. BUSCO % estimates completeness: the share of genes expected to be present that were actually found. These describe the data quality, not the organism.
Record type11 974 records
Origin
Range
Wildobservation + sensor
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
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.
Cultivated / Captivenot free-living
A living individual in a botanical garden, zoo or nursery — cultivated or kept, not free-living.
Wildobservation + sensor
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
Holding institutions121 of 227 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
| Institution | Specimens |
|---|---|
| Pretoria, ZA | 195 |
| HUN003location not on record | 97 |
| Saint Louis, US | 63 |
| Durango, MX | 58 |
| Paris, FR | 47 |
| Bronx, US | 44 |
| Kew, GB | 42 |
| Museo Entomologico de Leonlocation not on record | 42 |
| BIO-UNIPIlocation not on record | 42 |
| Olocation not on record | 39 |
| SLU Artdatabankenlocation not on record | 36 |
| Helsinki, FI | 35 |
| Chapingo, MX | 35 |
| Mexico City, MX | 29 |
| Mérida, MX | 22 |
| Tampa, US | 21 |
| UChlocation not on record | 19 |
| Puerto Ayora, EC | 18 |
| LDlocation not on record | 18 |
| Moscow State Universitylocation not on record | 17 |
| Adelaide, AU | 16 |
| Beijing, CN | 16 |
| Stadt Seeland, Ortsteil Gatersleben, DE | 14 |
| Guangzhou, CN | 12 |
| University of Stellenboschlocation not on record | 12 |
| Miami, US | 12 |
| Oulu, FI | 12 |
| Austin, US | 11 |
| Mlocation not on record | 11 |
| ASUlocation not on record | 10 |
| Riverside, US | 10 |
| Chicago, US | 10 |
| GBS RAN - Glavny Botanichesky Sad Rossijskoj Akademii Nauklocation not on record | 9 |
| South Kensington, GB | 8 |
| BDBClocation not on record | 8 |
| Christchurch, NZ | 8 |
| Tapachula, MX | 8 |
| Centre National de la Recherche Scientifique et Technologique / Institut de l'environnement et de recherches agricoleslocation not on record | 7 |
| CJBGlocation not on record | 7 |
| Yangling, CN | 7 |
| Kunming, CN | 7 |
| San Sebastián, ES | 7 |
| San Diego, US | 7 |
| Claremont, US | 7 |
| Mexico City, MX | 7 |
| ROM019location not on record | 7 |
| Stockholm, SE | 6 |
| DBF-NHMDlocation not on record | 6 |
| Tartu, EE | 6 |
| Xiamen, CN | 6 |
| Chongqing Museumlocation not on record | 6 |
| Leiden University Medical Centerlocation not on record | 6 |
| Wuzhou, CN | 5 |
| Canberra, AU | 5 |
| Phoenix, US | 5 |
| Guilin, CN | 5 |
| BClocation not on record | 5 |
| HNBlocation not on record | 5 |
| ROM021location not on record | 5 |
| Stockholm, SE | 5 |
| UFBAlocation not on record | 5 |
| Universidad de Nariño (UdeNar)location not on record | 5 |
| Cape Town, ZA | 5 |
| UNIVASFlocation not on record | 5 |
| Universidade Federal do Vale do São Franciscolocation not on record | 4 |
| National Biodiversity Institute, Costa Ricalocation not on record | 4 |
| Bern, CH | 4 |
| Berlin, DE | 4 |
| Auckland, NZ | 4 |
| San Jose State University, Museum of Birds and Mammalslocation not on record | 4 |
| Université de Strasbourglocation not on record | 4 |
| Salvador, BR | 4 |
| Durban, ZA | 4 |
| Altos de Pipe, VE | 4 |
| Chaguaramas, TT | 4 |
| Wellington, NZ | 4 |
| Burlington, US | 3 |
| Inner Mongolia Universitylocation not on record | 3 |
| US | 3 |
| College of the Atlantic, Museumlocation not on record | 3 |
| Seoul, KR | 3 |
| University of New Hampshirelocation not on record | 3 |
| Bloomington, US | 3 |
| Oskarshamn, SE | 3 |
| Masindi, UG | 3 |
| Tuscaloosa, US | 3 |
| Instituto Nacional de Pesquisas da Amazônia (INPA)location not on record | 3 |
| Universidade Federal de Sergipe (UFS)location not on record | 3 |
| University of Hamburglocation not on record | 3 |
| Hobart, AU | 3 |
| BRNUlocation not on record | 3 |
| Culiacán, MX | 3 |
| Aarhus, DK | 3 |
| Laboratorio de Ictiologialocation not on record | 3 |
| Philadelphia, US | 3 |
| Brussel, BE | 3 |
| Turku, FI | 3 |
| San Francisco de Campeche, MX | 3 |
| Juriquilla, MX | 2 |
| Strecker Museum, Baylor Universitylocation not on record | 2 |
| Vancouver, CA | 2 |
| Universidade Federal do Ceara, Departamento de Biologialocation not on record | 2 |
| BFLlocation not on record | 2 |
| Ann Arbor, US | 2 |
| Centro de Pesquisas Agropecuarias do Tropico Umidolocation not on record | 2 |
| UFVJMlocation not on record | 2 |
| Austin, US | 2 |
| Jena Microbial Resource Collectionlocation not on record | 2 |
| KMNlocation not on record | 2 |
| TAIElocation not on record | 2 |
| Columbia, US | 2 |
| Universidade Federal do Rio Grande do Nortelocation not on record | 2 |
| Jackson, US | 2 |
| Urumqi, CN | 2 |
| UIBlocation not on record | 2 |
| Museum of the Rockieslocation not on record | 2 |
| Uppsala, SE | 2 |
| Universidad de Caldas (UCaldas)location not on record | 2 |
| Changsha, CN | 2 |
| Mérida, MX | 2 |
| Jyväskylä, FI | 2 |
| Lanzhou, CN | 2 |
| Royal Ontario Museum, Green Plant Herbarium (TRT)location not on record | 2 |
| ROM007location not on record | 2 |
| Parc Botanique et Zoologique de Tsimbazaza (PBZT)location not on record | 2 |
| Ciudad de México, MX | 2 |
| Montecillo, Texcoco, MX | 2 |
| Universidad Industrial de Santander (UIS)location not on record | 2 |
| Arusha, TZ | 2 |
| Universidad de Antioquia (UdeA)location not on record | 2 |
| TAFORI-LSRClocation not on record | 2 |
| WNNUlocation not on record | 2 |
| Shanghai, CN | 2 |
| WTUlocation not on record | 2 |
| Universidad de Guayaquillocation not on record | 2 |
| San José, CR | 2 |
| Wlocation not on record | 2 |
| Valdosta State Universitylocation not on record | 2 |
| Santa Cruz de la Sierra, BO | 2 |
| Station d'Ecologie de Lamtolocation not on record | 2 |
| Loja, EC | 1 |
| Trondheim, NO | 1 |
| Tlalnepantla, MX | 1 |
| Nishihara, JP | 1 |
| San Isidro, AR | 1 |
| Centro de Estudios y Colecciones Biológicas para la Conservaciónlocation not on record | 1 |
| Glocation not on record | 1 |
| EAlocation not on record | 1 |
| Institut fur Allgemeine Mikrobiologielocation not on record | 1 |
| Instituto Amazónico de Investigaciones Científicas - SINCHIlocation not on record | 1 |
| Tsukuba, JP | 1 |
| Nanjing, CN | 1 |
| Philadelphia, US | 1 |
| National Institute of Biological Resourceslocation not on record | 1 |
| Fukushima Universitylocation not on record | 1 |
| University of Southern Mississippilocation not on record | 1 |
| MAlocation not on record | 1 |
| San Luis Obispo, US | 1 |
| Frankfurt am Main | 1 |
| Florida Museum of Natural History- Zoology, Paleontology & Paleobotanylocation not on record | 1 |
| Orto botanico dell'Università degli Studi di Catanialocation not on record | 1 |
| Montpellier, FR | 1 |
| Canadian Department of Agriculturelocation not on record | 1 |
| NMBU:MINAlocation not on record | 1 |
| Cusco, PE | 1 |
| Otaru, JP | 1 |
| GAlocation not on record | 1 |
| Arcata, US | 1 |
| Teresina, BR | 1 |
| Departamento de Sistematica e Ecologialocation not on record | 1 |
| Embrapa Agrobiology Diazothrophic Microbial Culture Collectionlocation not on record | 1 |
| Guangzhou, CN | 1 |
| Hazara Universitylocation not on record | 1 |
| Centro de Investigación Regional Centro, Campo Experimental Bajío, Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuariaslocation not on record | 1 |
| Jiujiang Forestry Institutelocation not on record | 1 |
| Tamil Nadu Agricultural Universitylocation not on record | 1 |
| Guasave, MX | 1 |
| Sociedad para el Estudio de los Recursos Bióticos de Oaxaca, A. C.location not on record | 1 |
| Salzburg, AT | 1 |
| HRV044location not on record | 1 |
| Post Graduate College Bannulocation not on record | 1 |
| Universidad Nacional de Colombia (UNAL)location not on record | 1 |
| FUNEDlocation not on record | 1 |
| DSMlocation not on record | 1 |
| Honolulu, US | 1 |
| Fort Worth, US | 1 |
| Universidad Juárez Autónoma de Tabascolocation not on record | 1 |
| València, ES | 1 |
| Chengdu, CN | 1 |
| Addis Ababa, ET | 1 |
| Green Bay, US | 1 |
| LGlocation not on record | 1 |
| HUAlocation not on record | 1 |
| Flagstaff, US | 1 |
| Antiguo Cuscatlán, SV | 1 |
| EL PASO, US | 1 |
| Edmonton, CA | 1 |
| INBIOlocation not on record | 1 |
| Centre Suisse de Recherches Scientifiques en Côte d’Ivoirelocation not on record | 1 |
| H-Hohlalocation not on record | 1 |
| Pullman, US | 1 |
| Córdoba, AR | 1 |
| Denver, US | 1 |
| Istituto Agrario Castelnuovolocation not on record | 1 |
| Empresa Pernambucana de Pesquisa Agropecuária, IPAlocation not on record | 1 |
| Kuopio, FI | 1 |
| LSFlocation not on record | 1 |
| John May Museum of Natural Historylocation not on record | 1 |
| Fortaleza, BR | 1 |
| La Trobe Universitylocation not on record | 1 |
| Autlán de Navarro, MX | 1 |
| Universidade Federal do Maranhãolocation not on record | 1 |
| Sanda, JP | 1 |
| UEPAlocation not on record | 1 |
| UNEMATlocation not on record | 1 |
| Wuhan, CN | 1 |
| Davis, US | 1 |
| Tall Timbers Research Stationlocation not on record | 1 |
| UFRPElocation not on record | 1 |
| San Angelo, US | 1 |
| CEPLAClocation not on record | 1 |
| Mississippi State, US | 1 |
| Madison, US | 1 |
| Henderson, US | 1 |
| Hermosillo, MX | 1 |
| CICYTEXlocation not on record | 1 |
| Facultad de Zootecnia y Ecología, Universidad Autónoma de Chihuahualocation not on record | 1 |
Cultivated / Captivenot free-living
A living individual in a botanical garden, zoo or nursery — cultivated or kept, not free-living.
Where the DNA of Citrullus lanatus 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
Where its DNA was found
How strong is each trace?
Modelled climatemodelled
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.