Gene discovery for herbicide resistance

Genes drive herbicide resistance mechanisms

Understanding the mechanisms of resistance starts with assessing whether resistance is due to changes at the herbicide enzyme target site (target site resistance) or due to changes elsewhere in the plant (non-target site resistance). AHRI focuses on annual ryegrass and wild radish, but also researches wild oats and other weed species.

The Gene Discovery for Herbicide Resistance team is led by Principal Research Fellow Dr Qin Yu and Research Associate Dr Heping Han, with advice from Professor Stephen Powles. They investigate resistance mechanisms in current and new herbicide-resistant weed biotypes, using biochemical and molecular analysis.

Dr Qin Yu and Dr Heping Han

Challenging glyphosate resistance EPSPS P106S and TIPS mutations with soybean competition and glyphosate: implications for management

AHRI researchers Qin Yu and Heping Han

How target-site glufosinate resistance works

Hugh Beckie

Farewell to AHRI Director, Professor Hugh Beckie

AHRI Director Hugh Beckie standing in the glass house, surrounded by plants

AHRI Director Hugh Beckie reflects on achievements ahead of retirement

Ryegrass plants with 243Met mutation have twisted leaves

Trifluralin resistance mutation nearly lethal to ryegrass

Dr Qin Yu’s team discovers naturally evolving point mutation which confers resistance to glufosinate in goosegrass

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