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Dispersion and domestication shaped the genome of bread wheat
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SYSNO ASEP 0397250 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Dispersion and domestication shaped the genome of bread wheat Author(s) Berkman, P.J. (AU)
Visendi, P. (AU)
Lee, H.C. (AU)
Stiller, J. (AU)
Šimková, Hana (UEB-Q) RID, ORCID
Kubaláková, Marie (UEB-Q) RID
Song, W.N. (CN)
Doležel, Jaroslav (UEB-Q) RID, ORCID
Edwards, D. (AU)Number of authors 14 Source Title Plant Biotechnology Journal. - : Wiley - ISSN 1467-7644
Roč. 11, č. 5 (2013), s. 564-571Number of pages 8 s. Language eng - English Country US - United States Keywords Triticum aestivum ; genome sequencing ; evolution Subject RIV EB - Genetics ; Molecular Biology R&D Projects GAP501/12/2554 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z50380511 - UEB-Q (2005-2011) UT WOS 000319151000005 DOI 10.1111/pbi.12044 Annotation 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. Workplace Institute of Experimental Botany Contact David Klier, knihovna@ueb.cas.cz, Tel.: 220 390 469 Year of Publishing 2014
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