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Australian Herbicide Resistance Initiative
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    AHRI Celebrates 20 years


    The Australian Herbicide Resistance Initiative (AHRI) was a GRDC initiative which came about in 1998 under the guidance of Professor Stephen Powles. Last year AHRI celebrated 20 years of GRDC funding, operating as a research group out of the University of Western Australia. This video provides an overview of the beginnings of AHRI, the significant achievements it has had over the last two decades and the direction AHRI is headed into the future.

Blog: AHRI insight
Trifluralin resistance is different – recessive inheritance

Mon, 15 Apr 2019

We once thought that the genetics of eye colour was simple. Both parents have blue eyes, therefore, all of their children will have blue eyes. Easy peasy! Then science progressed and we realised that it isn’t actually that simple because several genes are involved. The genetics of herbicide resistance was simple. One parent is resistant to a herbicide, therefore, all of the offspring will be resistant because the gene is dominant or semi-dominant. This is true for almost all cases of herbicide resistance and was easy to understand. Until now. Click to read more about PhD student Jinyi Chen’s research.

Featured Publication
Publications Genetic inheritance of dinitroaniline resistance in an annual ryegrass population

Mon, 15 Apr 2019

The increasing number of weedy species resistant to dinitroaniline herbicides warrants studies on the evolutionary factors contributing to resistance evolution, including genetic inheritance of resistance traits. In this study, the researchers investigated the genetic control of trifluralin resistance in a well-characterised Lolium rigidum Gaud. population from Western Australia. This population was purified to contain plants homozygous for the Val-202-Phe α-tubulin mutation, and used as the resistant (R) parents and crossed with susceptible (S) parents to produce eight reciprocal F1 families.


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