Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:


Eco-tilling detects resistance

A new molecular tool developedby Australian and Japanese researchers is expected to help farmers address what has become one of the major threats to conventional agricultural practices - herbicide resistance.

More than 305 types of weed in more than 50 countries have been reported to be resistant to at least one herbicide, and an increasing number of weeds owe their success to their genetic diversity.

Scientists say techniques are needed to detect mutations when they first occur, so farmers can test for herbicide resistance in the field and manage weeds accordingly.

NSW Department of Primary Industries (DPI) molecular biologist,Dr Mui-Keng Tan, together with a team of researchers from Japan, investigated a technique called ecotilling and found it offers a quick, cheap and reliable means of detecting early signs of herbicide resistance in weeds.

Unlike the traditional molecular approach, eco-tilling uses reverse genetics. Genes are not fully sequenced; instead, mutations in single molecules that make up genes are identified purely on the basis of their position in the genome.

Dr Tan said new mutations can be detected and known ones can be screened for a fraction of the cost of alternative genetic methods.

This makes it a powerful, low cost and high throughput alternative to full sequencing.

Dr Tan has been investigating the technique with Dr Guang-Xi Wang from Kyoto University, who was funded by the Grains Research and Development Corporation to collaborate with Dr Tan at DPI’s Elizabeth Macarthur Agricultural Institute at Camden.

She says the use of the eco-tilling technique to test for resistance could help farmers to manage herbicide use in crop rotations more economically and effectively.

Dr Tan’s research has focused on herbicide resistance in two oft he most significant weeds affecting Australian cropping systems -wild oats and rye grass - and to together with Dr Wang she also examined weeds in rice fields inJapan.

Dr Tan said the every weed-herbicide system is specific.

"The ecotilling technique can beapplied on any particular system, pending availability of molecular data on the target genes of theherbicides," she said.

An article on the research in Japan was published recently in the international journal Pesticide Biochemistry and Physiology.

Contact Mui-Keng Tan, Camden, (02) 4640 6445 or
- Joanne Finlay

Joanne Finlay | EurekAlert!
Further information:

More articles from Agricultural and Forestry Science:

nachricht Earlier flowering of modern winter wheat cultivars
20.03.2018 | Georg-August-Universität Göttingen

nachricht Algorithm could streamline harvesting of hand-picked crops
13.03.2018 | University of Illinois College of Engineering

All articles from Agricultural and Forestry Science >>>

The most recent press releases about innovation >>>

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

Im Focus: Mars' oceans formed early, possibly aided by massive volcanic eruptions

Oceans formed before Tharsis and evolved together, shaping climate history of Mars

A new scenario seeking to explain how Mars' putative oceans came and went over the last 4 billion years implies that the oceans formed several hundred million...

Im Focus: Tiny implants for cells are functional in vivo

For the first time, an interdisciplinary team from the University of Basel has succeeded in integrating artificial organelles into the cells of live zebrafish embryos. This innovative approach using artificial organelles as cellular implants offers new potential in treating a range of diseases, as the authors report in an article published in Nature Communications.

In the cells of higher organisms, organelles such as the nucleus or mitochondria perform a range of complex functions necessary for life. In the networks of...

Im Focus: Locomotion control with photopigments

Researchers from Göttingen University discover additional function of opsins

Animal photoreceptors capture light with photopigments. Researchers from the University of Göttingen have now discovered that these photopigments fulfill an...

Im Focus: Surveying the Arctic: Tracking down carbon particles

Researchers embark on aerial campaign over Northeast Greenland

On 15 March, the AWI research aeroplane Polar 5 will depart for Greenland. Concentrating on the furthest northeast region of the island, an international team...

Im Focus: Unique Insights into the Antarctic Ice Shelf System

Data collected on ocean-ice interactions in the little-researched regions of the far south

The world’s second-largest ice shelf was the destination for a Polarstern expedition that ended in Punta Arenas, Chile on 14th March 2018. Oceanographers from...

All Focus news of the innovation-report >>>



Industry & Economy
Event News

Virtual reality conference comes to Reutlingen

19.03.2018 | Event News

Ultrafast Wireless and Chip Design at the DATE Conference in Dresden

16.03.2018 | Event News

International Tinnitus Conference of the Tinnitus Research Initiative in Regensburg

13.03.2018 | Event News

Latest News

Physicists made crystal lattice from polaritons

20.03.2018 | Physics and Astronomy

Mars' oceans formed early, possibly aided by massive volcanic eruptions

20.03.2018 | Physics and Astronomy

Thawing permafrost produces more methane than expected

20.03.2018 | Earth Sciences

Science & Research
Overview of more VideoLinks >>>