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1st IWGS Taxonomy Workshop Report

The 1st IWGS Taxonomy Workshop committee consisted of A.B. Damania, formerly ICARDA; M. Feldman, Weizmann Institute of Science; T.E. Miller, John Innes Centre; LA. Morrison, Oregon State University, and J.G. Waines, University of California, Riverside.

The workshop noted that the state of classification and nomenclature of the genus Triticum is such that they do not well serve the research community who need to use them.

There is confusion in the research community about the circumscription of the genus Triticum, whether it is Triticum L. defined narrowly, or Triticum L. emend. defined broadly to include Triticum and Aegilops.

There is confusion about the number of species in the genus Triticum.

There is confusion about the correct names of the species.

There is confusion about the status and nomenclature of the subspecies and botanical varieties.

There is confusion about how to classify the domesticated varieties and varietal groups.
There is a lack of workable keys and descriptions that many different people, such as botanists, geneticists, agronomists, and lay persons, can use.

The present state of taxonomy and nomenclature in Triticum is confusing for people who collect germplasm, for people who maintain genebanks, and for wheat breeders and geneticists who use the seed held by these genebanks.
The workshop agreed that this situation needs to be rectified.

The workshop committee proposed that there should be a monographic revision of the genus Triticum, and that a professionally-trained taxonomist be asked to do this revision. The workshop recognized that there would be a need to attract outside funding to finance this revision which, because of the magnitude of the task, would take several years. The revision might necessitate consultation among interested taxonomists familiar with Russian, German, English, and French, even though there should be one person who would direct the project. There may be a need to consult experimental taxonomists about the significance of genetic differences among domesticated and wild forms.


Monographic Revision Project

These nomenclatural discussions in WIS illustrate the pressing need to resolve the complicated issues of Triticum taxonomy. It is timely that the 2nd IWGS Workshop will take place this year. The workshop will primarily focus on establishing guidelines for setting up a monographic revision project. Interested researchers who are unable to attend the workshop can forward their comments and suggestions directly to me.

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