ACC1 mutations in wheat for quizalofop-p-ethyl resistance: An expansion and their incorporation into Chinese breeding lines

Wenqiang Wang; Yong Gan; Jifa Zhang; Qunqun Hao; Zhigang Wang; Chunhao Zou; Daolin Fu

doi:10.1016/j.jia.2026.03.010

March 1, 2026Journal of Integrative AgricultureOpen Access

ACC1 mutations in wheat for quizalofop-p-ethyl resistance: An expansion and their incorporation into Chinese breeding lines

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Key Points

The aim is to investigate how ACC1 mutations contribute to herbicide resistance in wheat and their potential for breeding.
Identified the G2084S substitution in ACC1 gene related to herbicide sensitivity.
Studied the effect of stacking the G2084S allele across different subgenomes of wheat.
Assessed the efficacy of low-dose quizalofop-p-ethyl on weed control without impacting yield.
The G2084S substitution significantly increased resistance to quizalofop-p-ethyl.
Stacking the G2084S allele across subgenomes resulted in enhanced resistance compared to non-mutated lines.
A low dose of quizalofop-p-ethyl effectively controlled weeds without reducing wheat yield.

Implication

This research demonstrates ACC1 mutations confer herbicide resistance in wheat, suggesting a potential boost for crop breeding.

Abstract

In wheat, the G2084S substitution renders ACC1 insensitive to the herbicide quizalofop-p-ethyl (QPE). In hexaploid wheat, stacking the G2084S allele across subgenomes confers enhanced resistance to QPE. A low-dose (250 ppm) of QPE can effectively control weeds in wheat fields without causing a yield penalty.

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Cite This Study

Wang et al. (2026) studied this question.

synapsesocial.com/papers/69b3aaa802a1e69014ccb7a7 https://doi.org/10.1016/j.jia.2026.03.010

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ACC1 mutations in wheat for quizalofop-p-ethyl resistance: An expansion and their incorporation into Chinese breeding lines

Key Points

Implication

Abstract

Discussion

Cite This Study

ACC1 mutations in wheat for quizalofop-p-ethyl resistance: An expansion and their incorporation into Chinese breeding lines

Key Points

Implication

Abstract

Discussion

Cite This Study

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