Ancient hybridizations among the ancestral genomes of bread wheat

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

Ancient hybridizations among the ancestral genomes of bread wheat

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Ancient hybridizations among the ancestral genomes of bread wheat

Popis výsledku anglicky

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.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

EB - Genetika a molekulární biologie

OECD FORD obor

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Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Science

ISSN

0036-8075

e-ISSN

—

Svazek periodika

345

Číslo periodika v rámci svazku

6194

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

4

Strana od-do

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Kód UT WoS článku

000343420300003

EID výsledku v databázi Scopus

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