Biology:Non-protein amino acid-accumulating clade

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Short description: Division within flowering plants

Non-protein amino acid-accumulating clade
Canava1.jpg
Canavalia ensiformis, from which canavanine was first isolated
Scientific classification e
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. 1.0 1.1 1.2 1.3 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. 2.0 2.1 2.2 "Reconstructing the deep-branching relationships of the papilionoid legumes". S Afr J Bot 89: 58–75. 2013. doi:10.1016/j.sajb.2013.05.001. http://repository.uwc.ac.za/xmlui/bitstream/10566/3193/1/Cardoso_Reconstructing-the_2013.pdf. 
  3. 3.0 3.1 "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. 2004. doi:10.3732/ajb.91.11.1846. PMID 21652332. 
  4. 4.0 4.1 "Revisiting the phylogeny of papilionoid legumes: new insights from comprehensively sampled early-branching lineages". Am J Bot 99 (12): 1991–2013. 2012. doi:10.3732/ajb.1200380. PMID 23221500. 
  5. Bell EA. (1981). "Non-protein amino acids in the Leguminosae". Advances in Legume Systematics, Part 2. Kew, UK: Royal Botanic Gardens. pp. 489–499. ISBN 9780855212247. http://www.kewbooks.com/asps/ShowDetails.asp?id=318. 

Wikidata ☰ Q16986600 entry