Molecular basis of multiple resistance to herbicides inhibiting acetyl-CoA carboxylase and acetolactate synthase in American sloughgrass (Beckmannia syzigachne) from China
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作者:
Pan, Lang
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Nanjing Agr Univ, Coll Plant Protect, Nanjing 210095, Jiangsu, Peoples R China
Nanjing Agr Univ, Minist Agr, Key Lab Integrated Pest Management Crops Eastern, Nanjing 210095, Jiangsu, Peoples R ChinaNanjing Agr Univ, Coll Plant Protect, Nanjing 210095, Jiangsu, Peoples R China
Pan, Lang
[1
,2
]
Gao, Haitao
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Nanjing Agr Univ, Coll Plant Protect, Nanjing 210095, Jiangsu, Peoples R China
Nanjing Agr Univ, Minist Agr, Key Lab Integrated Pest Management Crops Eastern, Nanjing 210095, Jiangsu, Peoples R ChinaNanjing Agr Univ, Coll Plant Protect, Nanjing 210095, Jiangsu, Peoples R China
Gao, Haitao
[1
,2
]
Wu, Han
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Nanjing Agr Univ, Coll Plant Protect, Nanjing 210095, Jiangsu, Peoples R China
Nanjing Agr Univ, Minist Agr, Key Lab Integrated Pest Management Crops Eastern, Nanjing 210095, Jiangsu, Peoples R ChinaNanjing Agr Univ, Coll Plant Protect, Nanjing 210095, Jiangsu, Peoples R China
Wu, Han
[1
,2
]
Dong, Liyao
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Nanjing Agr Univ, Coll Plant Protect, Nanjing 210095, Jiangsu, Peoples R China
Nanjing Agr Univ, Minist Agr, Key Lab Integrated Pest Management Crops Eastern, Nanjing 210095, Jiangsu, Peoples R ChinaNanjing Agr Univ, Coll Plant Protect, Nanjing 210095, Jiangsu, Peoples R China
Dong, Liyao
[1
,2
]
机构:
[1] Nanjing Agr Univ, Coll Plant Protect, Nanjing 210095, Jiangsu, Peoples R China
[2] Nanjing Agr Univ, Minist Agr, Key Lab Integrated Pest Management Crops Eastern, Nanjing 210095, Jiangsu, Peoples R China
American sloughgrass (Beckmannia syzigachne Steud.) is a problematic grass that is widely distributed in wheat and oilseed rape fields in China. The herbicides fenoxaprop-P-ethyl and mesosulfuron-methyl failed to control B. syzigachne JCWJ-R populations collected from a wheat field in Jiangsu Province. Dose-response experiments showed that JCWJ-R was resistant to the acetyl-CoA carboxylase (ACCase) inhibitors fenoxaprop-P-ethyl (33.8-fold), haloxyfop-R-methyl (12.7-fold), clethodim (7.8-fold) and pinoxaden (11.6-fold), and to the acetolactate synthase (ALS) inhibitors mesosulfuron-methyl (15.9-fold), pyroxsulam (17.6-fold), flucarbazone-Na (10.7-fold) and imazethapyr (7-fold). Resistance to ALS inhibitors was due to a Pro-197-Ser mutation in the ALS gene and resistance to ACCase inhibitors was due to an Ile-1781-Leu mutation in the ACCase gene. A derived cleaved amplified polymorphic sequence method was developed to detect the ALS mutation in B. syzigachne. This was combined with a previously established method to detect Ile-1781-Leu, and the mutation frequency and homozygous mutation rates in the JCWJ-R population were determined. The evolution of multiple resistance to ACCase and ALS inhibitors in this B. syzigachne population indicated that alternative methods should be developed to control resistant weeds.
机构:
Jealotts Hill Int Res Ctr, Herbicide Biosci, Bracknell RG42 6EY, Berks, EnglandJealotts Hill Int Res Ctr, Herbicide Biosci, Bracknell RG42 6EY, Berks, England
Kaundun, Shiv Shankhar
Downes, Joe
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Jealotts Hill Int Res Ctr, Herbicide Biosci, Bracknell RG42 6EY, Berks, EnglandJealotts Hill Int Res Ctr, Herbicide Biosci, Bracknell RG42 6EY, Berks, England
Downes, Joe
Jackson, Lucy Victoria
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Jealotts Hill Int Res Ctr, Herbicide Biosci, Bracknell RG42 6EY, Berks, EnglandJealotts Hill Int Res Ctr, Herbicide Biosci, Bracknell RG42 6EY, Berks, England
Jackson, Lucy Victoria
Hutchings, Sarah-Jane
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Jealotts Hill Int Res Ctr, Herbicide Biosci, Bracknell RG42 6EY, Berks, EnglandJealotts Hill Int Res Ctr, Herbicide Biosci, Bracknell RG42 6EY, Berks, England
Hutchings, Sarah-Jane
Mcindoe, Eddie
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Jealotts Hill Int Res Ctr, Herbicide Biosci, Bracknell RG42 6EY, Berks, EnglandJealotts Hill Int Res Ctr, Herbicide Biosci, Bracknell RG42 6EY, Berks, England
机构:
Jealotts Hill Int Res Ctr, Herbicide Biosci, Bracknell RG42 6EY, Berks, EnglandJealotts Hill Int Res Ctr, Herbicide Biosci, Bracknell RG42 6EY, Berks, England
Kaundun, Shiv Shankhar
Downes, Joe
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Jealotts Hill Int Res Ctr, Herbicide Biosci, Bracknell RG42 6EY, Berks, EnglandJealotts Hill Int Res Ctr, Herbicide Biosci, Bracknell RG42 6EY, Berks, England
Downes, Joe
Jackson, Lucy Victoria
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Jealotts Hill Int Res Ctr, Herbicide Biosci, Bracknell RG42 6EY, Berks, EnglandJealotts Hill Int Res Ctr, Herbicide Biosci, Bracknell RG42 6EY, Berks, England
Jackson, Lucy Victoria
Hutchings, Sarah-Jane
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Jealotts Hill Int Res Ctr, Herbicide Biosci, Bracknell RG42 6EY, Berks, EnglandJealotts Hill Int Res Ctr, Herbicide Biosci, Bracknell RG42 6EY, Berks, England
Hutchings, Sarah-Jane
Mcindoe, Eddie
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Jealotts Hill Int Res Ctr, Herbicide Biosci, Bracknell RG42 6EY, Berks, EnglandJealotts Hill Int Res Ctr, Herbicide Biosci, Bracknell RG42 6EY, Berks, England