Urochloa fusca
(Sw.) B.F.Hansen & Wunderlin · speciesAt a glance
Sources7 archives
Databases and archives Urochloa fusca's data was compiled from.
WikipediaWikimedia Foundation2 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility2 226 records↗
GRIN TaxonomyUSDA-ARSdistribution & uses↗
CCDBChromosome Counts DB · Tel Aviv U.genome & 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.
Urochloa fusca, the browntop signalgrass, is a wild grass species with a native range extending from Paraguay in South America to the southern United States (Alabama, Arizona, Florida, Georgia, New Mexico, Texas, and Oklahoma), and it is now found as a weed in Australia. The species is diploid, with a base chromosome number of 9,Osvaldo Morrone, Alejandro Escobar, and Fernando O. Zuloaga, Chromosome Studies in American Panicoideae (POACEAE) Annals of the Missouri Botanical Garden 2006 93 (4), 647-657 and utilizes the PCK enzymatic subtype of C4 photosynthesis. Based on a molecular phylogeny of the genus Urochloa, the closest relatives of U. fusca are Urochloa arizonica and Urochloa mollisDiego L. Salariato, Fernando O. Zuloaga, Liliana M. Giussani, Osvaldo Morrone, Molecular phylogeny of the subtribe Melinidinae (Poaceae: Panicoideae: Paniceae) and evolutionary trends in the homogenization of inflorescences, Molecular Phylogenetics and Evolution, Volume 56, Issue 1, July 2010, Pages 355-369, The genome of U. fusca is currently being sequenced by the Joint Genome Institute.
No narrative description available for this taxon yet.
Size & morphology10
Life cycle & reproduction5
Diet & foraging1
Habitat & environment11
Physiology & chemistry1
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 Urochloa fusca has left across the world's sequence archives.
At a glance
The complete instruction manual Urochloa fusca 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.
2n 186×CCDB · ipcn-api-dl · CCDB · book-ipcn66 · CCDB · book-ipcn67-71 +1
2n 361×CCDB · book-fedorov
n 91×CCDB · book-ipcn75-78
diploid inferred1×PloiDB · genus-scale
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
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.
Record type2 226 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.
Wildobservation + sensor
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
Holding institutions69 of 130 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
| Institution | Specimens |
|---|---|
| Saint Louis, US | 476 |
| Mexico City, MX | 227 |
| Bronx, US | 149 |
| Austin, US | 110 |
| Mérida, MX | 85 |
| University of Stellenboschlocation not on record | 74 |
| National Biodiversity Institute, Costa Ricalocation not on record | 57 |
| San Diego, US | 31 |
| UFERSAlocation not on record | 31 |
| Xiamen, CN | 31 |
| St. Augustine, TT | 28 |
| Texas Lutheran Universitylocation not on record | 26 |
| UNIVASFlocation not on record | 25 |
| Universidade Federal do Rio Grande do Nortelocation not on record | 21 |
| Salvador, BR | 20 |
| Université de Bordeauxlocation not on record | 19 |
| Universidade Federal do Ceara, Departamento de Biologialocation not on record | 18 |
| Antiguo Cuscatlán, SV | 18 |
| Laboratorio de Ictiologialocation not on record | 18 |
| Masindi, UG | 17 |
| Berlin, DE | 16 |
| Universidade Federal de Sergipe (UFS)location not on record | 15 |
| Fortaleza, BR | 14 |
| Guasave, MX | 14 |
| Fort Worth, US | 14 |
| Bloomington, US | 12 |
| Tampa, US | 11 |
| Cenargenlocation not on record | 11 |
| Brasília, BR | 11 |
| UFBAlocation not on record | 11 |
| Feira de Santana, BR | 10 |
| Chaguaramas, TT | 10 |
| Mount Annan, AU | 10 |
| Universidade Federal do Maranhãolocation not on record | 9 |
| UnBlocation not on record | 9 |
| Universidad Nacional de Colombia (UNAL)location not on record | 9 |
| León, NI | 9 |
| San Isidro, AR | 8 |
| Kew, GB | 8 |
| Altos de Pipe, VE | 8 |
| San Jose State University, Museum of Birds and Mammalslocation not on record | 7 |
| ASUlocation not on record | 7 |
| UFPElocation not on record | 7 |
| Brasília, BR | 7 |
| Lubbock, US | 7 |
| JBRJlocation not on record | 6 |
| San Angelo, US | 6 |
| Ann Arbor, US | 6 |
| San José, CR | 6 |
| Madison, US | 6 |
| Chongqing Museumlocation not on record | 6 |
| Empresa Pernambucana de Pesquisa Agropecuária, IPAlocation not on record | 6 |
| Durango, MX | 5 |
| Jardín Botánico de Cartagena "Guillermo Piñeres" (JBC)location not on record | 5 |
| Puerto Ayora, EC | 5 |
| Florida Museum of Natural History- Zoology, Paleontology & Paleobotanylocation not on record | 5 |
| UFRPElocation not on record | 4 |
| BMlocation not on record | 4 |
| Brisbane, AU | 4 |
| Juriquilla, MX | 4 |
| Auckland, NZ | 4 |
| UFMSlocation not on record | 4 |
| BAYLUlocation not on record | 4 |
| Montecillo, Texcoco, MX | 4 |
| Chicago, US | 4 |
| Cambridge, US | 4 |
| Aarhus, DK | 4 |
| Tuxtla Gutiérrez, MX | 3 |
| Phoenix, US | 3 |
| MEXUlocation not on record | 3 |
| Logan, US | 3 |
| Emporia, US | 3 |
| Jena Microbial Resource Collectionlocation not on record | 3 |
| MAlocation not on record | 2 |
| Durham, US | 2 |
| Giardini Botanici Hanburylocation not on record | 2 |
| Northridge, US | 2 |
| International Salmonella Centre (W.H.O.)location not on record | 2 |
| UEMAlocation not on record | 2 |
| La Paz, MX | 2 |
| IPA/SPlocation not on record | 2 |
| Sangmiung Universitylocation not on record | 2 |
| Calabar, NG | 2 |
| Museo Entomologico de Leonlocation not on record | 2 |
| Montréal, CA | 2 |
| Mazatlán, MX | 2 |
| Instituto Amazónico de Investigaciones Científicas SINCHIlocation not on record | 2 |
| VENlocation not on record | 1 |
| Centro de Pesquisas Agropecuarias do Tropico Umidolocation not on record | 1 |
| CPATSAlocation not on record | 1 |
| Zacatecas, MX | 1 |
| UFMGlocation not on record | 1 |
| BClocation not on record | 1 |
| PRClocation not on record | 1 |
| Instituto Nacional de Pesquisas da Amazônia (INPA)location not on record | 1 |
| Frankfurt am Main | 1 |
| Riverside, US | 1 |
| Albuquerque, US | 1 |
| UFPIlocation not on record | 1 |
| UCAMlocation not on record | 1 |
| Santa Cruz de la Sierra, BO | 1 |
| Universidad de Guayaquillocation not on record | 1 |
| Wuzhou, CN | 1 |
| Córdoba, AR | 1 |
| Columbia, US | 1 |
| Instituto para la Investigación y la Preservación del Patrimonio Cultural y Natural del Valle del Cauca - INCIVAlocation not on record | 1 |
| Museo civico La Terra e l'Uomo di Crocetta del Montellolocation not on record | 1 |
| XALlocation not on record | 1 |
| HEMlocation not on record | 1 |
| Armidale, AU | 1 |
| Pittsburg, US | 1 |
| Montpellier, FR | 1 |
| Guatemala, GT | 1 |
| Universidad de El Salvadorlocation not on record | 1 |
| UADYlocation not on record | 1 |
| CUVClocation not on record | 1 |
| Station d'Ecologie de Lamtolocation not on record | 1 |
| Universidad Nacional Agrarialocation not on record | 1 |
| UTPLlocation not on record | 1 |
| Quito, EC | 1 |
| Tulane Universitylocation not on record | 1 |
| LGlocation not on record | 1 |
| Ivano-Frankivsk, UA | 1 |
| Canberra, AU | 1 |
| Hobart, AU | 1 |
| Mexico City, MX | 1 |
| Chapel Hill, US | 1 |
| UFVJMlocation not on record | 1 |
| Bogotá, D.C., CO | 1 |
| HACAMlocation not on record | 1 |