Navigation Links
Building disease-beating wheat
Date:12/12/2007

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
tony.steeper@csiro.au
61-262-465-323
CSIRO Australia  
Source:Eurekalert

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:
*Name:
*Comment:
*Email:
Related Image:
Building disease-beating wheat
(Date:4/19/2017)... 19, 2017 The global military ... is marked by the presence of several large global ... by five major players - 3M Cogent, NEC Corporation, ... for nearly 61% of the global military biometric market ... the global military biometrics market boast global presence, which ...
(Date:4/13/2017)... PUNE, India , April 13, 2017 According ... Identity Proofing, Identity Authentication, Identity Analytics, Identity Administration, and Authorization), Service, Authentication ... by MarketsandMarkets™, the IAM Market is expected to grow from USD 14.30 ... Annual Growth Rate (CAGR) of 17.3%. ... ...
(Date:4/11/2017)... NXT-ID, Inc. (NASDAQ:   NXTD ) ... appointment of independent Directors Mr. Robin D. Richards ... Directors, furthering the company,s corporate governance and expertise. ... Gino Pereira , Chief Executive ... their guidance and benefiting from their considerable expertise as we ...
Breaking Biology News(10 mins):
(Date:6/15/2017)... (PRWEB) , ... June 15, 2017 , ... ... Saranas, a promising new medical device startup. Dan Parsley, angelMD’s SVP of Corporate ... angelMD members, and this angelMD syndicate is part of Saranas’ recently announced $4 ...
(Date:6/14/2017)... (PRWEB) , ... June 14, 2017 , ... ... bushing materials for pumps and process equipment, has appointed Andrew Ondish as Territory ... , Ondish holds a B.S. degree in Petroleum Engineering from Colorado School of ...
(Date:6/14/2017)... (PRWEB) , ... June 14, ... ... the completion of its Phase 1 clinical study of AC0058, a novel ... treatment of B cell-related autoimmune diseases, including rheumatoid arthritis and systemic lupus ...
(Date:6/13/2017)... and London UK (PRWEB) , ... June 13, 2017 , ... ... Information and Study on Clinical Trial Participation (CISCRP) and the Society for Clinical Research ... speakers will provide background on the purpose of eConsent and the ability for eConsent ...
Breaking Biology Technology: