Ancient hybridizations among the ancestral genomes of bread wheat

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389030%3A_____%2F14%3A00441342" target="_blank" >RIV/61389030:_____/14:00441342 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1126/science.1250092" target="_blank" >http://dx.doi.org/10.1126/science.1250092</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1126/science.1250092" target="_blank" >10.1126/science.1250092</a>

Result language
angličtina
Original language name
Ancient hybridizations among the ancestral genomes of bread wheat
Original language description
The allohexaploid bread wheat genome consists of three closely related subgenomes (A, B, and D), but a clear understanding of their phylogenetic history has been lacking. We used genome assemblies of bread wheat and five diploid relatives to analyze genome-wide samples of gene trees, as well as to estimate evolutionary relatedness and divergence times. We show that the A and B genomes diverged from a common ancestor similar to 7 million years ago and that these genomes gave rise to the D genome throughhomoploid hybrid speciation 1 to 2 million years later. Our findings imply that the present-day bread wheat genome is a product of multiple rounds of hybrid speciation (homoploid and polyploid) and lay the foundation for a new framework for understandingthe wheat genome as a multilevel phylogenetic mosaic.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
EB - Genetics and molecular biology
OECD FORD branch
—

Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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