Genetic diversity and phylogeography of Japanese brome (
            <i>Bromus japonicus</i>
            Thunb. ex Murr.) populations in China

Li, Qi; Yu, Jinping; Du, Long; Bai, Penghua; Zhang, Wei; Liu, Yixue

doi:10.1080/13102818.2024.2326810

Biotechnology & Biotechnological Equipment

2024

DOI: 10.1080/13102818.2024.2326810

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Genetic diversity and phylogeography of Japanese brome ( Bromus japonicus Thunb. ex Murr.) populations in China

Qi Li,

Jinping Yu,

Long Du

et al.

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2024

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Metabolism-Based Herbicide Resistance to Mesosulfuron-methyl and Identification of Candidate Genes in Bromus japonicus

Li,

Wang,

et al. 2024

Plants

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The evolved resistance of Bromus japonicus Houtt. to ALS-inhibiting herbicides is well established. Previous studies have primarily focused on target-site resistance; however, non-target-site resistance has not been well characterized. This investigation demonstrated that ALS gene sequencing did not detect any previously known resistance mutations in a mesosulfuron-methyl-resistant (MR) population, and notably, treatment with the P450 monooxygenase (P450) inhibitor malathion markedly heightened susceptibility to mesosulfuron-methyl. Utilizing UPLC-MS/MS analysis confirmed elevated mesosulfuron-methyl metabolism in MR plants. The integration of Isoform Sequencing (Iso-Seq) and RNA Sequencing (RNA-Seq) facilitated the identification of candidate genes associated with non-target sites in a subpopulation with two generations of herbicide selection. Through qRT-PCR analysis, 21 differentially expressed genes were characterized, and among these, 10 genes (comprising three P450s, two glutathione S-transferases, one glycosyltransferase, two ATP-binding cassette transporters, one oxidase, and one hydrolase) exhibited constitutive upregulation in resistant plants. Our findings substantiated that increased herbicide metabolism is a driving force behind mesosulfuron-methyl resistance in this B. japonicus population.

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Metabolism-Based Herbicide Resistance to Mesosulfuron-methyl and Identification of Candidate Genes in Bromus japonicus

Li,

Wang,

et al. 2024

Plants

Self Cite

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Genetic diversity and phylogeography of Japanese brome ( Bromus japonicus Thunb. ex Murr.) populations in China

Cited by 1 publication

References 48 publications

Metabolism-Based Herbicide Resistance to Mesosulfuron-methyl and Identification of Candidate Genes in Bromus japonicus

Metabolism-Based Herbicide Resistance to Mesosulfuron-methyl and Identification of Candidate Genes in Bromus japonicus

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