Climate-resilient wheat

Jan 20, 2014

JIC scientists have discovered that changing temperatures can have a big effect on resistance to yellow rust, one of the most serious diseases of wheat.

Most laboratory studies on are performed at constant day temperatures under controlled conditions. Yet in the field, temperatures are constantly changing, and this is rarely investigated.

PhD student Ruth Bryant found that there was no difference in resistance to between wheat grown at 18C or 25C. However, if infected plants experienced an increase from 18C to 25C resistance increased. Changing temperature in the other direction decreased resistance.

The result was independent of the gene that she was studying, suggesting the effect was controlled by another factor in the genetic background. Interestingly, another variety did not show the same effect, suggesting genetic diversity for the trait. With more extreme weather events predicted, the research could help in the breeding for more climate-resilient wheat varieties in the future.

Explore further: The origin of the language of life

More information: Read the complete paper, "A change in temperature modulates defence to yellow (stripe) rust in wheat line UC1041 independently of resistance gene Yr36," here: www.biomedcentral.com/1471-2229/14/10

add to favorites email to friend print save as pdf

Related Stories

Ancient crop could help safeguard world's wheat

Jul 15, 2013

(Phys.org) —Using a crop popular in the Bronze Age but almost unknown today, University of Sydney scientists have helped pave the way to creating wheat resistant to the fungal disease stem rust.

Resistance gene found against Ug99 wheat stem rust pathogen

Jun 27, 2013

The world's food supply got a little more plentiful thanks to a scientific breakthrough. Eduard Akhunov, associate professor of plant pathology at Kansas State University, and his colleague, Jorge Dubcovsky from the University ...

Gene to reduce wheat yield losses

Feb 19, 2009

A new gene that provides resistance to a fungal disease responsible for millions of hectares of lost wheat yield has been discovered by scientists from the US and Israel.

Building disease-beating wheat

Dec 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 ...

Recommended for you

The origin of the language of life

Dec 19, 2014

The genetic code is the universal language of life. It describes how information is encoded in the genetic material and is the same for all organisms from simple bacteria to animals to humans. However, the ...

Quest to unravel mysteries of our gene network

Dec 18, 2014

There are roughly 27,000 genes in the human body, all but a relative few of them connected through an intricate and complex network that plays a dominant role in shaping our physiological structure and functions.

EU court clears stem cell patenting

Dec 18, 2014

A human egg used to produce stem cells but unable to develop into a viable embryo can be patented, the European Court of Justice ruled on Thursday.

User comments : 0

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.