Navigation Links
Building disease-beating wheat

Pioneered by CSIRO researchers, in collaboration with the International Maize and Wheat Improvement Center (CIMMYT) and Sydney University, the research illustrates the major genetic improvements possible without genetic modification (GM) technology.

Wheat breeders often use wild relatives of wheat as sources of novel genes in breeding new disease-resistant wheats, research team leader Dr Phil Larkin says.

Unfortunately genes from wild relatives usually come in large blocks of hundreds of genes, and often include undesirable genes. Furthermore, these blocks of genes tend to stay together, even after many generations of breeding.

The problem can be so difficult to overcome that plant breeders sometimes give up on very valuable genes because they cannot separate them from the problematic genes.

A paper published this month in the respected international journal Theoretical and Applied Genetics details how the team recombined two wild blocks of genes from two different Thinopyrum grass species a wild relative of wheat bringing together resistance genes for leaf rust and Barley Yellow Dwarf Virus (BYDV), two of the worlds most damaging wheat diseases. The recombined gene package may also carry a resistance gene against a new stem rust strain which is causing concern worldwide.

The exciting part of the new research is that we have been able to retain the useful genes but leave behind the associated undesirable genes - most notably in this case those for yellow flour colour, an important quality characteristic in wheat, Dr Larkin says.

By developing new DNA markers and by careful testing the team has produced a number of the disease resistance packages for wheat breeders, making it faster and easier to include these important disease resistance traits in future wheat varieties.

It is hoped other examples will follow and the genetic diversity available in wild species can be recruited more extensively for wheat improvement.


Contact: Tony Steeper
CSIRO Australia  

Related biology news :

1. Building blocks of life
2. Rebuilding the evolutionary history of HIV-1 unravels a complex loop
3. Building blocks of life formed on Mars
4. A wheat for all seasons -- and reasons
Post Your Comments:
Related Image:
Building disease-beating wheat
(Date:6/2/2016)... 2016   The Weather Company , an IBM Business ... industry-first capability in which consumers will be able to interact ... questions via voice or text and receive relevant information about ... Marketers have long sought an advertising solution that can ... personal, relevant and valuable; and can scale across millions of ...
(Date:5/20/2016)... 2016  VoiceIt is excited to announce its ... By working together, VoiceIt and VoicePass will ... VoicePass take slightly different approaches to voice biometrics, ... and usability. ... partnership. "This marketing and technology partnership ...
(Date:5/3/2016)... May 3, 2016  Neurotechnology, a provider of ... MegaMatcher Automated Biometric Identification System (ABIS) , a ... projects. MegaMatcher ABIS can process multiple complex biometric ... combination of fingerprint, face or iris biometrics. It ... and MegaMatcher Accelerator , which have ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... ... June 23, 2016 , ... Charm Sciences, ... microbial test has received AOAC Research Institute approval 061601. , “This is another ... year,” stated Bob Salter, Vice President of Regulatory and Industrial Affairs. “The Peel ...
(Date:6/23/2016)... 2016  The Biodesign Challenge (BDC), a university competition ... harness living systems and biotechnology, announced its winning teams ... New York City . The ... projects at MoMA,s Celeste Bartos Theater during the daylong ... senior curator of architecture and design, and Suzanne ...
(Date:6/23/2016)... ... June 23, 2016 , ... Supplyframe, the Industry Network for ... Design Lab . Located in Pasadena, Calif., the Design Lab’s mission is to ... are designed, built and brought to market. , The Design Lab is Supplyframe’s ...
(Date:6/23/2016)... NC (PRWEB) , ... June 23, 2016 , ... In ... University Hospital in Denmark detail how a patient who developed lymphedema after being treated ... tissue. The results could change the paradigm for dealing with this debilitating, frequent side ...
Breaking Biology Technology: