Skip to the content

Kansas State University

  1. K-State Home >
  2. Wheat Genetic and Genomic Resources Center >
  3. Wheat Taxonomy >
  4. Classification of Triticum according to Bowden 1959

WHEAT TAXONOMY

Classification of Triticum according to Bowden 1959.

Bowden's classification [reference] is of historical importance because it established the trend for cytogenetically based taxonomic treatments that group the wheats together into one large genus Triticum. The Kimber and Sears (1987) classification serves as the modern version of this genetic approach to taxonomy. Bowden departed from the standard taxonomic practice in his use of 'cultivar groups' for subspecific taxa and his omission of formal Section titles for the groupings of species. Bowden's classification is presented here in its original form except for spelling and authority corrections. It also includes changes made by Bowden in 1966 [reference]. The currently accepted genome symbols also have been added.


Triticum L. emend.

I. Diploids (2n = 2x = 14)
GENOME 
SPECIES 
 
A
Triticum monococcum L.  
Sb
Triticum bicorne Forsskål  
M
Triticum comosum (Sm. in Sibth. & Sm.) K.Richter  
C
Triticum dichasians (Zhuk.) Bowden [not validly published]
Sl
Triticum longissimum (Schweinf. & Muschl. in Muschl.) Bowden  
S
Triticum speltoides (Tausch) Gren. ex K. Richter  
f. speltoides  
f. ligusticum (Savig.) Bowden  
D
Triticum tauschii (Cosson) Schmalh. [synonymous]
T
Triticum tripsacoides (Jaub. & Spach) Bowden  
f. tripsacoides  
f. loliaceum (Jaub. & Spach) Bowden  
U
Triticum umbellulatum (Zhuk.) Bowden  
N
Triticum uniaristatum (Vis.) K.Richter  
II(a). Allotetraploid wheats with genome BBAA or genome GGAA (2n = 28) and a related autoallohexaploid form (2n = 42)
GENOME 
SPECIES 
 
BA
Triticum turgidum L.  
cultivar group turgidum  
cultivar group polonicum (based on Triticum polonicum L.)  
cultivar group dicoccum (based on Triticum dicoccum Schrank ex Schübler)  
cultivar group durum (based on Triticum durum Desf.)  
cultivar group carthlicum (based on Triticum carthlicum Nevski in Kom.)  
cultivar group paleocolchicum (based on Triticum paleocolchicum Menabde)  
cultivar group turanicum (based on Triticum turanicum Jakubz.)  
cultivar group aethiopicum (based on Triticum aethiopicum Jakubz.)  
var. dicoccoides (Körn. ex Asch. & Graebner) Bowden  
GA
var. timopheevii  
GAA
f. zhukovskyi (Menabde & Ericzjan) Bowden  
GA
var. tumanianii L.(Jakubz.) Bowden  
II(b). Allohexaploid wheats with genomic formula BBAADD (2n = 42)
GENOME 
SPECIES 
 
BA
Triticum aestivum L.  
cultivar group aestivum  
cultivar group spelta (based on Triticum spelta L.)  
cultivar group compactum (based on Triticum compactum Host)  
cultivar group sphaerococcum (based on Triticum sphaerococcum Percival.)  
cultivar group macha (based on Triticum macha Dekapr. & Menabde)  
cultivar group vavilovii (based on Triticum vavilovii (Tumanian) Jakubz.)  
II(c). Allopolyploid speies of interspecific hybrid origin (2n = 28 or 2n = 42)
GENOME 
SPECIES 
 
DM
Triticum crassum (Boiss.) Aitch. & Hemsl.  
CD
Triticum cylindricum (Host) Ces., Pass. & Gibelli  
DMU
Triticum juvenale Thell.  
US
Triticum kotschyi (Boiss.) Bowden  
UM
Triticum macrochaetum (Shuttlew. & A.Huet ex Duval-Jouve) K.Richter  
UM
Triticum ovatum (L.) Raspail [ambiguous]
CU
Triticum persicum (Boiss.) Aitch. & Hemsl. [form of Triticum triunciale]
UMN
Triticum rectum (Zhuk.) Bowden  
DMS
Triticum syriacum Bowden  
UM
Triticum triaristatum (Willd.) Godron & Gren. [ambiguous]
UC
Triticum triunciale (L.) Raspail  
DM
Triticum turcomanicum (Roshev.) Bowden [4x form of Triticum juvenale]
DN
Triticum ventricosum (Tausch) Ces., Pass. & Gilelli