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United States Department of Agriculture

Agricultural Research Service

Title: New Insights into the Organization and Evolution of Wheat Genomes

Authors
item Dvorak, J - UC DAVIS
item Akhunov, E - UC DAVIS
item Akhunov, A - UC DAVIS
item Luo, M - UC DAVIS
item Linkiewicz, A - UC DAVIS
item Dubcovsky, J - UC DAVIS
item Hummel, D - UC DAVIS
item Lazo, Gerard
item Chao, S - UC DAVIS
item Anderson, Olin

Submitted to: Wheat Genetics International Symposium Proceedings
Publication Type: Proceedings
Publication Acceptance Date: June 30, 2003
Publication Date: September 1, 2003
Citation: Dvorak, J., Akhunov, E.D., Akhunov, A.R., Luo, M.C., Linkiewicz, A.M., Dubcovsky, J., Hummel, D., Lazo, G.R., Chao, S., Anderson, O.D. 2003. New insights into the organization and evolution of wheat genomes. Wheat Genetics International Symposium Proceedings. 1:247-253.

Interpretive Summary: Recent findings about the placement of genes expressed in wheat are providing an insight into the organization of the wheat genome. Genes in wheat were tentatively placed on genetic maps constructed from a complex series of screenings against mapping lines. In the assessment of the locations of the mapped gene candidates, it appeared that there was a higher density of loci present at the ends of the chromosome arms and that fewer were located near the centromere. Within high density gene regions, duplications of some genes appeared more frequently. Those loci which appeared to represent single copy genes were more often found nearer to proximal centromeric regions. These findings point to the potential in the genome for genetic recombination to occur and may provide some additional insight toward evolution within the species.

Technical Abstract:

Last Modified: 4/17/2015
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