The Pooideae are the largest subfamily of the grass family Poaceae, with about 4,000 species in 15 tribes and roughly 200 genera. They include some major cereals such as wheat, barley, oat, rye and many lawn and pasture grasses. They are often referred to as cool-season grasses, because they are distributed in temperate climates.[1] All of them use the C3 photosynthetic pathway.
| Pooideae | |
|---|---|
| |
| Quaking grass (Briza media) | |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Clade: | Commelinids |
| Order: | Poales |
| Family: | Poaceae |
| Clade: | BOP clade |
| Subfamily: | Pooideae |
| Subdivisions | |
|
See text. | |
The Pooideae are the sister group of the bamboos within the BOP clade, and are themselves subdivided into 15 tribes.[1]
Evolutionary history
editPooidae started diversifying in the Late Eocene, and their radiation was especially intense during the Oligocene and Miocene epochs.[2]
Phylogeny
editRelationships of tribes in the Pooideae according to a 2017 phylogenetic classification, also showing the bamboos as sister group:[1]
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bamboos (Bambusoideae) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Pooideae |
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References
edit- ^ a b c 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. hdl:10261/240149. ISSN 1674-4918.
- ^ Pimentel, Manuel; Escudero, Marcial; Sahuquillo, Elvira; Minaya, Miguel Ángel; Catalán, Pilar (22 September 2017). "Are diversification rates and chromosome evolution in the temperate grasses (Pooideae) associated with major environmental changes in the Oligocene-Miocene?". PeerJ. 5: e3815. doi:10.7717/peerj.3815. ISSN 2167-8359. PMC 5611942. PMID 28951814.
External links
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