Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Draft sequence of the rye genome

04.04.2017

Breakthrough for comparative genomics in cereals and genome-based breeding for crop improvement

A team of German plant researchers from the Technical University of Munich (TUM) and from the Leibniz-Institute of Plant Genetics and Crop Plant Research in Gatersleben reports on a whole-genome draft sequence of rye.


The image shows a Circos plot illustrating the genomic diversity of rye and the wild species S. vavilovii.

Art-work: Jean-Michel Pape, Thomas Schmutzer/IPK Gatersleben

This rye whole-genome sequence closes a gap in Triticeae genome research and represents a genome resource of high value for comparative genomics, functional studies and genome-based breeding for sustainable crop production.

Cereal rye (Secale cereale L.) is a diploid Triticeae species closely related to bread wheat (Triticum aestivum L.) and barley (Hordeum vulgare L.) and is one of the parents of the man-made cereal Triticale. Due to its superior winter hardiness, rye is especially used in Central and Eastern Europe for food, feed and bioenergy.

Among all diploid Triticeae, rye has the largest and a highly repetitive genome, this means it has a double chromosome set. “For a long time comprehensive whole-genome sequence information of rye has been missing, whereas draft genome sequences of its sister species barley and wheat became available recently”, explains Eva Bauer, scientist at the Chair of Plant Breeding of the Technical University of Munich and main author.

“This gap has now been closed by our publication in The Plant Journal. Through comprehensive resequencing we investigated the exceptional genomic diversity of rye and developed a high-density genotyping array.”

Uwe Scholz, head of the research group Bioinformatics at the Leibniz-Institute of Plant Genetics and Crop Plant research adds: “This genomic resource is an indispensable tool for understanding the biology and evolution of major Triticeae species through comparative genomic approaches and for relating this knowledge to phenotypic traits.“

Rye genome is important for breeding better wheat or barley

Rye is an important model to elucidate the genetic and functional basis of traits that are also relevant for the genetic improvement of wheat and barley. It excels by an exceptional frost tolerance and outyields wheat and barley on poor and medium soils and under drought stress conditions. Rye translocations are present in many wheat varieties grown worldwide, and contribute to abiotic and biotic stress tolerance. Thus, the availability of rye whole-genome sequences will facilitate the elucidation of genes and molecular mechanisms underlying important agronomic traits that are useful for the improvement of related Triticeae species.

The study by IPK and TUM in cooperation with the University of Hohenheim, Helmholtz Zentrum München, the Julius Kühn Institute and KWS Lochow GmbH was funded by the BMBF.

Publication: Eva Bauer, Thomas Schmutzer, Ivan Barilar, Martin Mascher, Heidrun Gundlach, Mihaela M. Martis, Sven O. Twardziok, Bernd Hackauf, Andres Gordillo, Peer Wilde, Malthe Schmidt, Viktor Korzun, Klaus F.X. Mayer, Karl Schmid, Chris-Carolin Schön and Uwe Scholz (2017): Towards a whole-genome sequence for rye (Secale cereale L.), The Plant Journal (2017) 89, 853–869, doi: 10.1111/tpj.13436.

Weitere Informationen:

http://www.ipk-gatersleben.de
http://www.tum.de

Regina Devrient | idw - Informationsdienst Wissenschaft

More articles from Life Sciences:

nachricht The “Holy Grail” of peptide chemistry: Making peptide active agents available orally
21.02.2018 | Technische Universität München

nachricht First line of defence against influenza further decoded
21.02.2018 | Helmholtz-Zentrum für Infektionsforschung

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: In best circles: First integrated circuit from self-assembled polymer

For the first time, a team of researchers at the Max-Planck Institute (MPI) for Polymer Research in Mainz, Germany, has succeeded in making an integrated circuit (IC) from just a monolayer of a semiconducting polymer via a bottom-up, self-assembly approach.

In the self-assembly process, the semiconducting polymer arranges itself into an ordered monolayer in a transistor. The transistors are binary switches used...

Im Focus: Demonstration of a single molecule piezoelectric effect

Breakthrough provides a new concept of the design of molecular motors, sensors and electricity generators at nanoscale

Researchers from the Institute of Organic Chemistry and Biochemistry of the CAS (IOCB Prague), Institute of Physics of the CAS (IP CAS) and Palacký University...

Im Focus: Hybrid optics bring color imaging using ultrathin metalenses into focus

For photographers and scientists, lenses are lifesavers. They reflect and refract light, making possible the imaging systems that drive discovery through the microscope and preserve history through cameras.

But today's glass-based lenses are bulky and resist miniaturization. Next-generation technologies, such as ultrathin cameras or tiny microscopes, require...

Im Focus: Stem cell divisions in the adult brain seen for the first time

Scientists from the University of Zurich have succeeded for the first time in tracking individual stem cells and their neuronal progeny over months within the intact adult brain. This study sheds light on how new neurons are produced throughout life.

The generation of new nerve cells was once thought to taper off at the end of embryonic development. However, recent research has shown that the adult brain...

Im Focus: Interference as a new method for cooling quantum devices

Theoretical physicists propose to use negative interference to control heat flow in quantum devices. Study published in Physical Review Letters

Quantum computer parts are sensitive and need to be cooled to very low temperatures. Their tiny size makes them particularly susceptible to a temperature...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

2nd International Conference on High Temperature Shape Memory Alloys (HTSMAs)

15.02.2018 | Event News

Aachen DC Grid Summit 2018

13.02.2018 | Event News

How Global Climate Policy Can Learn from the Energy Transition

12.02.2018 | Event News

 
Latest News

Atomic structure of ultrasound material not what anyone expected

21.02.2018 | Materials Sciences

'Icebreaker' protein opens genome for t cell development, Penn researchers find

21.02.2018 | Health and Medicine

MEMS chips get metatlenses

21.02.2018 | Physics and Astronomy

VideoLinks
Science & Research
Overview of more VideoLinks >>>