Cadia (plant)

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Cadia purpurea Taub101c.png
Cadia purpurea
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Rosids
Order: Fabales
Family: Fabaceae
Subfamily: Faboideae
Tribe: Podalyrieae[1][2]
Genus: Cadia

Cadia is a genus of flowering plants in the legume family, Fabaceae. It belongs to the subfamily Faboideae.

Unlike most plants in the Faboideae, it has radially symmetrical flowers. In related species with bilateral symmetry, such as those of Lupinus, the dorsal (upper or adaxial) part of the flower expresses one or more genes in the Cycloidea (CYC)/Dichotoma (DICH) family. In Cadia, these genes are expressed throughout the flower. Thus, from a molecular point of view, Cadia is not reversing the ancestral evolution from radial symmetry to bilateral symmetry, but obtaining radial symmetry from a new mechanism.[5]


  1. ^ Boatwright JS, Savolainen V, Van Wyk B-E, Schutte-Vlok AL, Forest F., Van der Bank M. (2008). "Systematic position of the anomalous genus Cadia and the phylogeny of the tribe Podalyrieae (Fabaceae)". Syst Bot 33 (1): 133–147. doi:10.1600/036364408783887500. 
  2. ^ Cardoso D, Pennington RT, de Queiroz LP, Boatwright JS, Van Wyk B-E, Wojciechowski MF, Lavin M. (2013). "Reconstructing the deep-branching relationships of the papilionoid legumes". S Afr J Bot 89: 58–75. doi:10.1016/j.sajb.2013.05.001. 
  3. ^ "ILDIS LegumeWeb entry for Cadia". International Legume Database & Information Service. Cardiff School of Computer Science & Informatics. Retrieved 26 February 2014. 
  4. ^ USDA, ARS, National Genetic Resources Program. "GRIN species records of Cadia". Germplasm Resources Information Network—(GRIN) [Online Database]. National Germplasm Resources Laboratory, Beltsville, Maryland. Retrieved 26 February 2014. 
  5. ^ Citerne HL, Pennington RT, Cronk QCB. (August 8, 2006), "An apparent reversal in floral symmetry in the legume Cadia is a homeotic transformation", Proc Natl Acad Sci USA 103 (32): 12017–12020, doi:10.1073/pnas.0600986103, PMC 1567690, PMID 16880394