Corporate Banner
Satellite Banner
Food & Beverage Analysis
Scientific Community
 
Become a Member | Sign in
Home>News>This Article
  News
Return

Boron Tolerance Discovery for Higher Wheat Yields

Published: Friday, July 04, 2014
Last Updated: Friday, July 04, 2014
Bookmark and Share
Adelaide scientists have identified the genes in wheat that control tolerance to a significant yield-limiting soil condition found around the globe - boron toxicity.

Published in the journal Nature, the identification of boron tolerance genes in wheat DNA is expected to help plant breeders more rapidly advance new varieties for increased wheat yields to help feed the growing world population.

The researchers, from the Australian Centre for Plant Functional Genomics at the University of Adelaide's Waite campus within the University's School of Agriculture, Food and Wine, say that in soils where boron toxicity is reducing yields, genetic improvement of crops is the only effective strategy to address the problem.

"About 35% of the world's seven billion people depend on wheat for survival," says project leader Dr Tim Sutton. "However productivity is limited by many factors such as drought, salinity and subsoil constraints including boron toxicity.

"In southern Australia more than 30% of soils in grain-growing regions have too high levels of boron. It's also a global problem, particularly in drier grain-growing environments. Boron tolerant lines of wheat, however, can maintain good root growth in boron toxic soils whereas intolerant lines will have stunted roots.

"Our identification of the genes and their variants responsible for this adaptation to boron toxicity means that we now have molecular markers that can be used in breeding programs to select lines for boron tolerance with 100% accuracy."

Dr Sutton says wheat has been difficult to work with in genomics. The wheat genome is very large, with about six times the number of genes as humans. This complexity has meant that genes controlling yield and adaptation to environmental stresses have remained extremely challenging to identify.

"Advances in molecular biology and genetics technologies of the past few years, coupled with the extensive collections of wheat genetic material available around the world, have paved the way for a new era in the analysis of complex genomes such as wheat," he says.

In this study, the researchers tracked these specific boron tolerance genes from wild wheats grown by the world's earliest farmers in the Mediterranean region, through wheat lines brought into Australia more than a century ago, to current day Australian commercial varieties.

They found a distinct pattern of gene variant distribution that was correlated to the levels of boron in soils from different geographical regions.

"This discovery means that wheat breeders will now have precision selection tools and the knowledge to select for the right variants of the tolerance gene needed to do the job in specific environments," says Dr Sutton.


Further Information

Join For Free

Access to this exclusive content is for Technology Networks Premium members only.

Join Technology Networks Premium for free access to:

  • Exclusive articles
  • Presentations from international conferences
  • Over 3,100+ scientific posters on ePosters
  • More than 4,500+ scientific videos on LabTube
  • 35 community eNewsletters


Sign In



Forgotten your details? Click Here
If you are not a member you can join here

*Please note: By logging into TechnologyNetworks.com you agree to accept the use of cookies. To find out more about the cookies we use and how to delete them, see our privacy policy.


Scientific News
Detecting Fake Parmesan Cheeses
Scientists report on a way to catch adulteration of the regional artisanal products.
Cancer-Fighting Properties Of Horseradish Revealed
Horseradish contains cancer-fighting compounds known as glucosinolates. Glucosinolate type and quantity vary depending on size and quality of the horseradish root. For the first time, the activation of cancer-fighting enzymes by glucosinolate products in horseradish has been documented.
Process Analysis in Real Time
With a real-time mass spectrometer developed by Fraunhofer researchers, it has become possible for the first time to analyze up to 30 components simultaneously from the gas phase and a liquid, including in-situ analysis.
An E.coli Detector May be in Your Hands Soon
Hand-held device that can be used to detect a variety of pathogens—including foodborne pathogens like E. coli—at all stages in the food supply chain, from fields to restaurants may be available soon.
Three Quarters of the Population Believe That Food in Germany is Safe
According to the latest survey results, consumers rate climate change and / or environmental pollution as the most significant risks to health.
Why do Tomatoes Smell "Grassy"?
Researchers identify enzymes that convert the grassy smell of tomatoes into a sweeter scent.
Compounds Found in Fruits Could Treat Diseases
Fruit discovery could provide new treatments for obesity, type 2 diabetes and cardiovascular disease.
Sticky Molecules to Tackle Obesity and Diabetes
Researchers at Okayama University have reported that the overexpression of an adhesion molecule found on the surface of fat cells appears to protect mice from developing obesity and diabetes.
Process Contaminants in Vegetable Oils and Foods
Glycerol-based process contaminants found in palm oil, but also in other vegetable oils, margarines and some processed foods, raise potential health concerns for average consumers of these foods in all young age groups, and for high consumers in all age groups.
Apricot Kernels Pose Risk of Cyanide Poisoning
Eating more than three small raw apricot kernels, or less than half of one large kernel, in a serving can exceed safe levels. Toddlers consuming even one small apricot kernel risk being over the safe level.
SELECTBIO

Skyscraper Banner
Go to LabTube
Go to eposters
 
Access to the latest scientific news
Exclusive articles
Upload and share your posters on ePosters
Latest presentations and webinars
View a library of 1,800+ scientific and medical posters
3,100+ scientific and medical posters
A library of 2,500+ scientific videos on LabTube
4,500+ scientific videos
Close
Premium CrownJOIN TECHNOLOGY NETWORKS PREMIUM FOR FREE!