Paspaleae Explained

Paspaleae is a tribe of the Panicoideae subfamily in the grasses (Poaceae), native mainly to the tropical and subtropical Americas but with a number of species introduced to other regions. It includes roughly 680 species in 39 genera.[1] Species in this tribe use either of the C3 or C4 photosynthetic pathways.[2]

The genera of Paspaleae used to be included in the Paniceae but were assigned to a new tribe following molecular phylogenetic analyses in 2012. The Paspaleae have an ancestral number of chromosomes (monoploid number) of x = 10, unlike the Paniceae sensu stricto with x = 9, and are more closely related to the tribes Andropogoneae and Arundinelleae.[3] The tribe is subdivided into three subtribes, with one genus, Reynaudia, unplaced (incertae sedis) and probably basal to the other genera.[1] The genus Lecomtella is sometimes included but a study suggested this genus was a distinct clade and best treated as separate tribe, Lecomtelleae.[4]

Subtribes and genera

Subdivisions:

Notes and References

  1. Soreng . Robert J. . Peterson . Paul M. . Romschenko . Konstantin . Davidse . Gerrit . Zuloaga . Fernando O. . Judziewicz . Emmet J. . Filgueiras . Tarciso S. . Davis . Jerrold I. . Morrone . Osvaldo . A worldwide phylogenetic classification of the Poaceae (Gramineae) . Journal of Systematics and Evolution . 53 . 2 . 2015 . 117–137 . 1674-4918 . 10.1111/jse.12150. 11336/25248 . free .
  2. Grass Phylogeny Working Group II . 2012 . New grass phylogeny resolves deep evolutionary relationships and discovers C4 origins . New Phytologist . 193 . 2 . 304–312 . 10.1111/j.1469-8137.2011.03972.x . 22115274. 2262/73271 . free .
  3. Morrone. Osvaldo. Aagesen. Lone. Scataglini. Maria A.. Salariato. Diego L.. Denham. Silvia S.. Chemisquy. Maria A.. Sede. Silvana M.. Giussani. Liliana M.. Kellogg. Elizabeth A.. Zuloaga. Fernando O.. Phylogeny of the Paniceae (Poaceae: Panicoideae): integrating plastid DNA sequences and morphology into a new classification. Cladistics. 28. 4. 2012. 333–356. 0748-3007. 10.1111/j.1096-0031.2011.00384.x.
  4. Besnard. G.. Christin. P.-A.. Male. P.-J. G.. Coissac. E.. Ralimanana. H.. Vorontsova. M. S.. Maria Vorontsova (botanist). Phylogenomics and taxonomy of Lecomtelleae (Poaceae), an isolated panicoid lineage from Madagascar. Annals of Botany. 112. 6. 2013. 1057–1066. 0305-7364. 10.1093/aob/mct174. 23985988. 3783238.

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