Dispersion and domestication shaped the genome of bread wheat

Berkman, Paul J., Visendi, Paul, Lee, Hong C., Stiller, Jiri, Manoli, Sahana, Lorenc, Michal T., Lai, Kaitao, Batley, Jacqueline, Fleury, Delphine, Simkova, Hana, Kubalakova, Marie, Weining, Song, Dolezel, Jaroslav and Edwards, David (2013) Dispersion and domestication shaped the genome of bread wheat. Plant Biotechnology Journal, 11 5: 564-571. doi:10.1111/pbi.12044

Author Berkman, Paul J.
Visendi, Paul
Lee, Hong C.
Stiller, Jiri
Manoli, Sahana
Lorenc, Michal T.
Lai, Kaitao
Batley, Jacqueline
Fleury, Delphine
Simkova, Hana
Kubalakova, Marie
Weining, Song
Dolezel, Jaroslav
Edwards, David
Title Dispersion and domestication shaped the genome of bread wheat
Journal name Plant Biotechnology Journal   Check publisher's open access policy
ISSN 1467-7644
Publication date 2013-06
Year available 2013
Sub-type Article (original research)
DOI 10.1111/pbi.12044
Open Access Status
Volume 11
Issue 5
Start page 564
End page 571
Total pages 8
Place of publication Oxford, United Kingdom
Publisher Wiley-Blackwell Publishing
Collection year 2014
Language eng
Abstract Despite the international significance of wheat, its large and complex genome hinders genome sequencing efforts. To assess the impact of selection on this genome, we have assembled genomic regions representing genes for chromosomes 7A, 7B and 7D. We demonstrate that the dispersion of wheat to new environments has shaped the modern wheat genome. Most genes are conserved between the three homoeologous chromosomes. We found differential gene loss that supports current theories on the evolution of wheat, with greater loss observed in the A and B genomes compared with the D. Analysis of intervarietal polymorphisms identified fewer polymorphisms in the D genome, supporting the hypothesis of early gene flow between the tetraploid and hexaploid. The enrichment for genes on the D genome that confer environmental adaptation may be associated with dispersion following wheat domestication. Our results demonstrate the value of applying next-generation sequencing technologies to assemble gene-rich regions of complex genomes and investigate polyploid genome evolution. We anticipate the genome-wide application of this reduced-complexity syntenic assembly approach will accelerate crop improvement efforts not only in wheat, but also in other polyploid crops of significance.
Keyword Triticum aestivum
Genome sequencing
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Article first published online: 24 JAN 2013

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Agriculture and Food Sciences
Official 2014 Collection
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Citation counts: TR Web of Science Citation Count  Cited 19 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 24 times in Scopus Article | Citations
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Created: Fri, 08 Mar 2013, 15:50:22 EST by Dr Dave Edwards on behalf of School of Agriculture and Food Sciences