Helmholtz Zentrum München - German Research Center for Environmental Health

Welcome to the PGSB Wheat Genome (IWGSC) Database

The analysis of the complex, high-repetitive hexaploid wheat genome is an international effort coordinated by the IWGSC.
The International Wheat Genome Sequencing Consortium (IWGSC) focused on sequencing individual wheat chromosome arms to provide high quality reference sequences, which can be used to explore and understand the structure, function and evolution of the bread wheat genome.


We published a series of research manuscripts on the chromosome-based draft provides new insight into the structure, organization, and evolution of the large, complex genome of the world's most widely grown cereal crop, bread wheat. The manuscripts have been published in the July, 18th 2018 special issue of science.

  • A chromosome-based draft sequence of the hexaploid bread wheat (Triticum aestivum) genome
    The International Wheat Genome Sequencing Consortium (IWGSC) Science 18 July 2014. [Text] [PDF]

The draft sequence is a major landmark towards obtaining a complete reference sequence of the hexaploid bread wheat genome and gives unparalleled insights into the genomic basis of a polyploid cereal crop. E.g. it is providing new insights into the history and evolution of the wheat genome and genes involved in grain development, as exemplified in two additional publications appearing in the same issue of Science.

  • Genome interplay in the grain transcriptome of hexaploid bread wheat
    Matthias Pfeifer, Karl G. Kugler, Simen R. Sandve, Bujie Zhan, Heidi Rudi, Torgeir R. Hvidsten, International Wheat Genome Sequencing Consortium, Klaus F. X. Mayer, and Odd-Arne Olsen Science 18 July 2014. [Text] [PDF]
  • Ancient hybridizations among the ancestral genomes of bread wheat
    Thomas Marcussen, Simen R. Sandve, Lise Heier, Manuel Spannagl, Matthias Pfeifer, The International Wheat Genome Sequencing Consortium,, Kjetill S. Jakobsen, Brande B. H. Wulff, Burkhard Steuernagel, Klaus F. X. Mayer, and Odd-Arne Olsen Science 18 July 2014. [Text]

With a chromosome-based full sequence in hand, plant breeders will have high quality tools at their disposal to accelerate breeding programs and to identify how genes control complex traits such as yield, grain quality, disease, pest resistance, or abiotic stress tolerance. They will be able to produce a new generation of wheat varieties with higher yields and improved sustainability to meet the demands of a growing world population in a changing environment.

All IWGSC genome data incl. gene predictions, genome sequence assemblies, GenomeZipper and POPseq data is now available for download:

The same data is available for both download and browsing/analysis at our partner sites within the transPLANT project:
Official IWGSC sequence repository at INRA URGI Versailles
Ensembl plants IWGSC wheat instance at EBI