Le sorgho du Soudan est une espèce de plantes monocotylédones de la famille des Poaceae, sous-famille des Panicoideae, originaire d'Afrique. C'est une plante herbacée annuelle à tiges dressées, pouvant atteindre 3 mètres de haut. Elle est largement cultivée dans le monde comme plante fourragère. Le sorgho du Soudan est une forme ségrégée issue d'un hybride naturel (nothoespèce) entre Sorghum bicolor (L.) Moench et Sorghum arundinaceum (Desv.) Stapf. Apparu dans la région allant du sud de l'Égypte au Soudan. Introduit aux États-Unis dès 1909, il a connu un grand succès dans les régions bénéficiant d'un climat chaud et sec. Il est couramment utilisé pour la production d'hybrides F1 interspécifiques avec Sorghum bicolor comme autre parent. Des exemples de tels hybrides sont 'Sudax', 'Zulu' et 'Bantu'. Le sorgho du Soudan, comme d'autres espèces de sorgho, contient un glycoside cyanogénétique, la dhurrine, à des taux très variable selon les cultivars, qui peut dans certaines conditions libérer du cyanure d'hydrogène (HCN) et provoquer l'empoisonnement du bétail. Il peut aussi accumuler des nitrates en quantités toxiques, notamment en cas d'excès de fertilisation azotée.
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 Sorghum drummondii has left across the world's sequence archives.
At a glance
eDNA detections2
06Genome at a glanceCCDB
The complete instruction manualSorghum drummondii 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 · book-ipcn67-71 — MAGOON, M.L., & M.A. TAYYAB. 1968. Studies on induced polyploids in the genus Sorghum. Nucleus 11: 19-33.
CCDB · book-atlas-flowering-plants — Fo
n 103×CCDB · book-ipcn66 · CCDB · book-ipcn67-71
CCDB · book-ipcn66 — Sadasiwaiah & M. 1966
CCDB · book-ipcn67-71 — MAGOON, M.L., & M.A. TAYYAB. 1968. Cytogenetic studies in Eu-sorghu J. Genetics 60: 52-68.
CCDB · book-ipcn67-71 — MAGOON, M. L., M. A. TAYYAB, & R. S. SADASIVAIAH. 1967. A cytomorphological study of the genus Sorghum. Bot. Mag. Tokyo 80: 427-439.
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 accuracy67% within 1 km
≤100 m 2≤1 km 6≤10 km 1>10 km 3
12 georeferenced · 1 without coordinates
Open the mapobservation + sensor13
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 accuracy33% within 1 km
≤100 m 12≤1 km 9≤10 km 25>10 km 18
64 georeferenced · 30 without coordinates
Open the institutions mapphysical evidence94
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 institutions18 of 26 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
Brisbane, AU
27
Kensington, AU
10
Canberra, AU
10
Bronx, US
6
Museo Entomologico de Leonlocation not on record
5
St. Augustine, TT
3
Kew, GB
3
Auckland, NZ
3
University of Stellenboschlocation not on record
2
South Kensington, GB
2
Universidad de Caldas (UCaldas)location not on record
2
Spearfish, US
2
Hobart, AU
2
MeiseBGlocation not on record
1
Saint Louis, US
1
Christchurch, NZ
1
San Isidro, AR
1
Northridge, US
1
Adelaide, AU
1
BISHlocation not on record
1
CASlocation not on record
1
Emporia, US
1
Palmerston, AU
1
College Park, US
1
BGPAlocation not on record
1
Institute of Ecology of the Volga river basin of Russian Academy of Sciences | IEVB RASlocation not on record
1
26 institutions · 90 of 94 vouchered records shown · 4 without an institution code
09Environmental DNA2 detections
Where the DNA of Sorghum drummondii 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 found2
Studies independent surveys1
Signal confidence: weakweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 2 detections have coordinates
Open the map0 countries0
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.
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.
