ALS MUTATIONS FROM HERBICIDE-RESISTANT WEEDS
This updatable table is based on the paper :

Tranel, P. J., and Wright, T. R. (2002). Resistance of weeds to ALS-inhibiting herbicides: What have we learned?
WeedScience, 50: 700-712.

and is currently maintained by the authors Patrick Tranel (tranel@uiuc.edu) and Terry Wright (trwright@dow.com).
If you want to add a new case, add further information to an existing case, point out an error, or just comment please click here.

Click on "details" in the table for references and background information on specific cases

Cite this page as:
Tranel, P.J., Wright, T.R, and Heap, I.M. ALS mutations from herbicide-resistant weeds.
Online. Internet. Friday, January 16, 2009. Available http://www.weedscience.com

Table 1.  ALS amino acid substitutions that confer herbicide resistance and that were identified in herbicide
resistant weed populations.  Resistance-conferring ALS mutations that were intentionally selected (i.e., laboratory
selections) are not included in this table. 

Amino Acid Residue and Number(1)Substitution conferring resistanceWeed SpeciesSU(2)IMI(2)PTB(2)TP(2)SCT(2)Year(3)Details
Ala 122ThrXanthium strumarium S R S ND ND 1995Details
 ThrAmaranthus hybridus S R S S ND 1998Details
 ThrSolanum ptycanthum S R ND ND ND 2000Details
 ThrAmaranthus retroflexus ND R ND ND ND 2005Details
 ThrAmaranthus powellii S R ND ND ND 2005Details
Pro 197HisLactuca serriola R r S r ND 1992Details
 ThrKochia scoparia R S ND R ND 1992Details
 ArgKochia scoparia R ND ND ND ND 1995Details
 LeuKochia scoparia R ND ND ND ND 1995Details
 GlnKochia scoparia R ND ND ND ND 1995Details
 SerKochia scoparia R ND ND ND ND 1995Details
 AlaKochia scoparia R ND ND ND ND 1995Details
 AlaBrassica tournefortii R S ND R ND 1999Details
 IleSisymbrium orientale R r ND R ND 1999Details
 LeuAmaranthus retroflexus R R R R ND 2001Details
 AlaRaphanus raphanistrum R S ND R ND 2002Details
 ThrRaphanus raphanistrum R S ND R ND 2002Details
 AlaLindernia dubia R ND ND ND ND 2002Details
 SerLindernia dubia var. major R ND ND ND ND 2002Details
 GlnLindernia micrantha R ND ND ND ND 2002Details
 SerLindernia micrantha R ND ND ND ND 2002Details
 GlnLindernia procumbens R ND ND ND ND 2002Details
 SerLindernia procumbens R ND ND ND ND 2002Details
 SerAmaranthus blitoides R S r r ND 2003Details
 HisRaphanus raphanistrum R S ND R ND 2003Details
 SerRaphanus raphanistrum R S ND R ND 2003Details
 ThrChrysanthemum coronarium R r R r R 2004Details
 SerChrysanthemum coronarium ND ND ND ND ND 2004Details
 SerMonochoria vaginalis R ND ND ND ND 2004Details
 LeuHelianthus annuus R ND ND ND ND 2004Details
 HisPapaver rhoeas R S ND r ND 2004Details
 ThrPapaver rhoeas R S ND r ND 2004Details
 SerPapaver rhoeas R S ND r ND 2004Details
 SerBromus tectorum R S ND ND R 2004Details
 SerSinapis arvensis R S ND ND ND 2005Details
 ThrLactuca serriola R r ND r ND 2006Details
 HisScirpus juncoides var. ohwianus R S S ND ND 2007Details
 SerScirpus juncoides var. ohwianus R S S ND ND 2007Details
 LeuScirpus juncoides var. ohwianus R S S ND ND 2007Details
 SerHordeum leporinum R S ND ND ND 2007Details
 LeuThlaspi arvense R r ND S ND 2007Details
 SerLolium rigidum R S ND ND ND 2007Details
 AlaLolium rigidum R S ND ND ND 2008Details
 LeuLolium rigidum R S ND ND ND 2008Details
 GlnLolium rigidum R S ND ND ND 2008Details
 ThrAlopecurus myosuroides R ND ND ND ND 2008Details
 ArgLolium rigidum R S ND ND ND 2008Details
Ala 205ValXanthium strumarium r r r r ND 1996Details
 ValHelianthus annuus r R ND ND ND 2003Details
 ValAmaranthus retroflexus S R ND ND ND 2005Details
 ValSolanum ptycanthum r R ND S ND 2007Details
Asp 376GluAmaranthus hybridus R R R R R 2004Details
 GluKochia scoparia R ND ND ND ND 2008Details
Trp 574LeuXanthium strumarium R R R R ND 1995Details
 LeuAmaranthus rudis R R ND R ND 1996Details
 LeuAmaranthus hybridus R R ND R ND 1997Details
 LeuKochia scoparia R R ND ND ND 1999Details
 LeuSisymbrium orientale R R ND R ND 1999Details
 LeuAmbrosia artemisiifolia R R ND R ND 2001Details
 LeuAmbrosia trifida R R ND R ND 2002Details
 LeuRaphanus raphanistrum ND ND ND ND ND 2002Details
 LeuAmaranthus blitoides R R R R ND 2003Details
 LeuCamelina microcarpa R R ND R R 2004Details
 LeuAmaranthus retroflexus R R ND ND ND 2005Details
 LeuAmaranthus powellii R R ND ND ND 2005Details
 LeuSinapis arvensis R R ND R R 2005Details
 LeuLolium rigidum R R ND ND ND 2007Details
 LeuScirpus juncoides var. ohwianus R R R ND ND 2007Details
 LeuAlopecurus myosuroides R ND ND ND ND 2008Details
Ser 653ThrAmaranthus powellii S R ND ND ND 2001Details
 ThrAmaranthus retroflexus S R ND ND ND 2001Details
 AsnAmaranthus rudis S R ND S ND 2001Details
 ThrAmaranthus rudis S R ND S ND 2001Details
 AsnAmaranthus hybridus r R R r ND 2006Details

NOTES HERBICIDE FAMILY ABBREVIATIONS
1. Amino acid number is standardized to the Arabidopsis thaliana sequence

2.  S = Susceptible biotype
     r  =  Moderate resistance (< 10-fold relative to sensitive biotype)
     R = High Resistance (> 10-fold)
   ND = Not Determined
It should be noted that these classifications are generalizations.

3. The year that the mutation was first reported: see details for reference.

SU = Sulfonylureas
IMI = Imidazolinones
PTB= Pyrimidinylthiobenzoates
TP= Triazolopyrimidines
SCT=Sulfonylaminocarbonyltriazolinone

 


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