Non-protein amino acid-accumulating clade
Canavalia ensiformis, from which canavanine was first isolated
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fabales
Family: Fabaceae
Subfamily: Faboideae
Clade: Meso-Papilionoideae
Clade: Non-protein amino acid-accumulating clade
(Cardoso et al 2012)[1]
Clades[1][2]
Synonyms
  • Canavanine-accumulating clade
  • NPAAA clade

The non-protein amino acid-accumulating clade, also known as the Canavanine-accumulating clade is a clade of the flowering plant subfamily Faboideae (or Papilionoideae) that includes the majority of agriculturally-cultivated legumes.[3][4][1] It is characterized by the accumulation of the non-proteinogenic amino acid canavanine in the seeds—a deterrent against herbivory. This phylogenetic trait was first recognized in the early 1980s.[5] This clade is consistently resolved in molecular phylogenies.[3][4][2] It contains many economically important genera, including Cicer, Glycine, Medicago, Phaseolus, Trifolium, Vicia, and Vigna.

Description

This clade circumscribes five subordinate clades: two traditional tribes (Hypocalypteae and Indigofereae) and three informal clades (the mirbelioids, the millettioids, and Hologalegina), as well as several minor taxa.[2] The name of this clade is informal and is not assumed to have any particular taxonomic rank like the names authorized by the ICBN or the ICPN.[1] The clade does not currently have a node-based definition.

See also

  • IRL, another clade defined by molecular characteristics, rests within the NPAAA clade

References

  1. 1 2 3 4 Wojciechowski MF. (2013). "Towards a new classification of Leguminosae: Naming clades using non-Linnaean phylogenetic nomenclature". S Afr J Bot. 89: 85–93. doi:10.1016/j.sajb.2013.06.017.
  2. 1 2 3 Cardoso D, Pennington RT, de Queiroz LP, Boatwright JS, Van Wyk BE, Wojciechowski MF, Lavin M (2013). "Reconstructing the deep-branching relationships of the papilionoid legumes" (PDF). S Afr J Bot. 89: 58–75. doi:10.1016/j.sajb.2013.05.001.
  3. 1 2 Wojciechowski MF, Lavin M, Sanderson MJ (2004). "A phylogeny of legumes (Leguminosae) based on analysis of the plastid matK gene resolves many well-supported subclades within the family". Am J Bot. 91 (11): 1846–862. doi:10.3732/ajb.91.11.1846. PMID 21652332.
  4. 1 2 Cardoso D, de Queiroz LP, Pennington RT, de Lima HC, Fonty É, Wojciechowski MF, Lavin M (2012). "Revisiting the phylogeny of papilionoid legumes: new insights from comprehensively sampled early-branching lineages". Am J Bot. 99 (12): 1991–2013. doi:10.3732/ajb.1200380. PMID 23221500.
  5. ↑ Bell EA. (1981). "Non-protein amino acids in the Leguminosae". In Polhill RM, Raven PH (eds.). Advances in Legume Systematics, Part 2. Kew, UK: Royal Botanic Gardens. pp. 489–499. ISBN 9780855212247.


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