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Ancient hybridizations among the ancestral genomes of bread wheat
- 1.0441342 - ÚEB 2015 RIV US eng J - Článek v odborném periodiku
Marcussen, T. - Sandve, S. R. - Heier, L. - Spannagl, M. - Pfeifer, M. - Rogers, J. - Doležel, Jaroslav - Pozniak, C. - Eversole, K. - Feuillet, C. - Gill, B. - Friebe, B. - Lukaszewski, A.J. - Sourdille, P. - Endo, T. R. - Kubaláková, Marie - Čihalíková, Jarmila - Dubská, Zdeňka - Vrána, Jan - Šperková, Romana - Šimková, Hana - Febrer, M. - Clissold, L. - Jakobsen, K. S. - Wulff, B.H. - Steuernagel, B. - Mayer, K. F. X. - Olsen, O.A. … celkem 105 autorů
Ancient hybridizations among the ancestral genomes of bread wheat.
Science. Roč. 345, č. 6194 (2014). ISSN 0036-8075. E-ISSN 1095-9203
Institucionální podpora: RVO:61389030
Klíčová slova: POLYPLOID WHEAT * HYBRID SPECIATION * AEGILOPS-TAUSCHII
Kód oboru RIV: EB - Genetika a molekulární biologie
Impakt faktor: 33.611, rok: 2014
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 through homoploid 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 understanding the wheat genome as a multilevel phylogenetic mosaic.
Trvalý link: http://hdl.handle.net/11104/0244372
Název souboru Staženo Velikost Komentář Verze Přístup Marcussen.SM.pdf 7 1.6 MB Jiná povolen 2014_Marcussen_SCIENCE_1250092.pdf 4 1.2 MB Jiná povolen
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