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Wheat Taxonomy

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)

A Triticum monococcum L.
Sb Triticum bicorne Forsskål
M Triticum comosum (Sm. in Sibth. & Sm.) K.Richter
C Triticum dichasians (Zhuk.) Bowden
Sl Triticum longissimum (Schweinf. & Muschl. in Muschl.) Bowden
Ss Triticum searsii (Feldman & Kislev) Feldman
Sl Triticum sharonense (Eig) Feldman & Sears
S Triticum speltoides (Tausch) Gren. ex K. Richter
D Triticum tauschii (Cosson) Schmalh.
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)

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)

UM Triticum columnare (Zhuk.) Morris & Sears
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
UM Triticum macrochaetum (Shuttlew. & A.Huet ex Duval-Jouve) K.Richter
UM Triticum neglectum (Req. ex Bertol.) Greuter
UM Triticum ovatum (L.) Raspail
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