About Triticum aestivum
Triticum aestivum (bread wheat) is a major global cereal grain essential to human nutrition. Wheat was one of the first cereals to be domesticated, originating in the fertile crescent around 7000 years ago. Bread wheat is hexaploid, with a genome size estimated at ~17 Gbp, composed of three closely-related and independently maintained genomes that are the result of a series of naturally occurring hybridization events. The ancestral progenitor genomes are considered to be Triticum urartu (the A-genome donor) and an unknown grass thought to be related to Aegilops speltoides (the B-genome donor). This first hybridization event produced tetraploid emmer wheat (AABB, T. dicoccoides) which hybridized again with Aegilops tauschii (the D-genome donor) to produce modern bread wheat.
What can I find? Homologues, gene trees, and whole genome alignments across multiple species.
Download alignments (EMF)
- The Earlham Institute, formerly The Genome Analysis Centre
- International Wheat Genome Sequencing Consortium (IWGSC)
- PGSB International Wheat Survey Genome Database
- Triticeae Genomics For Sustainable Agriculture resource page
- CerealsDB from the Functional Genomics Group at the University of Bristol