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Wheat Genetics Resource Center

Kansas State University
Department of Plant Pathology

4024 Throckmorton
1712 Claflin Road
Manhattan, KS 66506-5502
785-532-6176 (TEL)
785-532-5692 (FAX)
wgrc@k-state.edu

Wheat Genetics Resource Center
Kansas Wheat Innovation Center

1990 Kimball Ave
Manhattan, KS 66502
785-320-4383 (TEL)

 

WHEAT TAXONOMY

Classification of Triticum according to Kimber & Sears 1987, with nomenclatural corrections.

The Kimber & Sears (1987) [reference] genomic classification treats all the wheats as one large genus, Triticum sensu lato. This current genomic concept for wheat taxonomy has its roots in the 1959 Triticum classification of Bowden [reference] and a subsequent revision by Morris & Sears (1967) [reference]. As presented here, the Kimber & Sears treatment incorporates changes made by Kimber & Feldman (1987) and corrects nomenclatural errors. Researchers who follow this genomic concept of the wheats should note that several species names are not validly published. Citations for the Kimber & Sears [reference] classification should also include the reference to Kimber & Feldman (1987).


Triticum L.

1. 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 
Ss
Triticum searsii (Feldman & Kislev) Feldman[not validly published]
Sl
Triticum sharonense (Eig) Feldman & Sears[not validly published]
S
Triticum speltoides (Tausch) Gren. ex K. Richter 
D
Triticum tauschii (Cosson) Schmalh.[synonymous]
T
Triticum tripsacoides (Jaub. & Spach) Bowden 
U
Triticum umbellulatum (Zhuk.) Bowden 
N
Triticum uniaristatum (Vis.) K.Richter 
2. Allopolyploid wheats (2n = 4x = 28 or 2n = 6x = 42)
GENOME 
SPECIES 
 
BA
Triticum turgidum L. 
GA
Triticum timopheevii (Zhuk.) Zhuk. 
GAA
Triticum zhukovskyi Menabde & Ericzjan 
BAD
Triticum aestivum L. 
3. Other allopolyploids (2n = 4x = 28 or 2n = 6x = 42)
GENOME 
SPECIES 
 
UM
Triticum columnare (Zhuk.) Morris & Sears[not validly published]
DM
Triticum crassum (Boiss.) Aitch. & Hemsl. 
DMM
Triticum crassum (Boiss.) Aitch. & Hemsl. 
CD
Triticum cylindricum (Host) Ces., Pass. & Gibelli 
DMU
Triticum juvenale Thell. 
US
Triticum kotschyi (Boiss.) Bowden[not validly published]
UM
Triticum macrochaetum (Shuttlew. & A.Huet ex Duval-Jouve) K.Richter[not validly published]
UM
Triticum neglectum (Req. ex Bertol.) Greuter 
UM
Triticum ovatum (L.) Raspail[ambiguous]
SU
Triticum peregrinum Hackel in J.Fraser 
UMN
Triticum rectum (Zhuk.) Bowden 
DMS
Triticum syriacum Bowden 
UC
Triticum triunciale (L.) Raspail 
DN
Triticum ventricosum (Tausch) Ces., Pass. & Gilelli