Andropogoneae

The Andropogoneae, sometimes called the sorghum tribe, are a large tribe of grasses (family Poaceae) with roughly 1,200 species in 90 genera, mainly distributed in tropical and subtropical areas. They include such important crops as maize (corn), sugarcane, and sorghum.[2] All species in this tribe use C4 carbon fixation, which makes them competitive under warm, high-light conditions.[3]

Andropogoneae
Andropogon scoparius
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Clade: Commelinids
Order: Poales
Family: Poaceae
Clade: PACMAD clade
Subfamily: Panicoideae
Supertribe: Andropogonodae
Tribe: Andropogoneae
Dumort. (1824)
Subtribes

12 subtribes, see text

Synonyms[1]
  • Sacchareae Dumort. (1824)
  • Coiceae Nakai (1943)
  • Euchlaeneae Nakai (1943)
  • Imperateae Godr. & Gren. (1855)
  • Maydeae Dumort. (1824, nom. illeg.)
  • Ophiureae Dumort. (1824)
  • Rottboellieae Kunth (1829)
  • Sacchareae Rchb. ex Horan. (1847, as Saccharinae)
  • Tripsaceae C.E. Hubb. ex Nakai (1943)
  • Zeeae Rchb. (1828, unranked)
  • Zeeae Nakai (1943)

Andropogoneae is classified in supertribe Andropogonodae together with its sister group Arundinelleae. Subdivisions include 12 subtribes, but the position of several genera within them is still unresolved (incertae sedis). Hybridisation was probably important in the evolution of the Andropogoneae, and the tribe's systematics is still not completely resolved.[3]

Description

Spikelets within the inflorescence (flower cluster) are generally arranged on spicate racemes in pairs. A fertile, unstalked spikelet is subtended by a sterile, stalked spikelet. In species where awns are present they are found on the fertile, unstalked spikelet as an extension of the lemma.[4].

Subtribes and genera

Classification following Soreng et al. (2017).[1]

incertae sedis
Arthraxoninae
Tripsacinae
Chionachninae
Coicinae
Rottboelliinae
Ischaeminae
Germainiinae
Saccharinae
Andropogoninae
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References
  1. Soreng, Robert J.; Peterson, Paul M.; Romaschenko, Konstantin; Davidse, Gerrit; Teisher, Jordan K.; Clark, Lynn G.; Barberá, Patricia; Gillespie, Lynn J.; Zuloaga, Fernando O. (2017). "A worldwide phylogenetic classification of the Poaceae (Gramineae) II: An update and a comparison of two 2015 classifications". Journal of Systematics and Evolution. 55 (4): 259–290. doi:10.1111/jse.12262. ISSN 1674-4918.
  2. Also called "kaoliang": "Shensi", in The Columbia-Viking Encyclopedia (1953), New York: Viking. Another spelling is "gaoliang."
  3. Soreng, Robert J.; Peterson, Paul M.; Romschenko, Konstantin; Davidse, Gerrit; Zuloaga, Fernando O.; Judziewicz, Emmet J.; Filgueiras, Tarciso S.; Davis, Jerrold I.; Morrone, Osvaldo (2015). "A worldwide phylogenetic classification of the Poaceae (Gramineae)". Journal of Systematics and Evolution. 53 (2): 117–137. doi:10.1111/jse.12150. ISSN 1674-4918.
  4. Skendzic, Elizabeth; Columbus, J. Travis; Rosa, Cerros-Tlatilpa (2007). "Phylogenetics of Andropogoneae (Poaceae: Panicoideae) Based on Nuclear Ribosomal Internal Transcribed Spacer and Chloroplast trnL–F Sequences". Aliso: A Journal of Systematic and Evolutionary Biology. 23 (1): 530–544. doi:10.5642/aliso.20072301.40. Retrieved 14 April 2020.


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