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).

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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