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Two Distinct Alleles Encode for Acetyl-CoA Carboxylase Inhibitor Resistance in Wild Oat (Avena fatua)

  • Bruce G. Murray (a1), Anita L. Brûlé-Babel (a1) and Ian N. Morrison (a1)


The objectives of this study were to determine the inheritance of aryloxyphenoxypropionate (APP) resistance in the wild oat population UM33 and to determine the genetic relationship between resistance in UM33 and another population, UM1, which has a different cross-resistance pattern. Reciprocal crosses were made between UM33 and a susceptible population UM5, and between UM33 and UM1. Initial screenings of F1 and F2 Is populations derived from crosses between UM33 and UM5 were conducted over a range of fenoxaprop-P rates to determine a discriminatory dosage. F2 populations and F2-derived F3 families were then screened at this dosage (1200 g ai ha−1) to determine segregation patterns. Results from reciprocal UM33 x UM5 F1 dose-response experiments, and F2 and F2-derived F3 segregation experiments indicated that UM33 resistance to fenoxaprop-P was governed by a single, partially dominant nuclear gene system. To determine if resistance in UM1 and UM33 results from alterations at the same gene locus, 584 F2 plants derived from reciprocal UM33 x UM1 crosses were screened with 150 g ha−1 fenoxaprop-P. This dosage was sufficient to kill susceptible plants (UM5), but was not sufficient to kill plants with a resistance allele from either parent. None of the treated F2 plants exhibited injury or death, indicating that UM1 and UM33 resistance genes did not segregate independently. From this it was concluded that resistance in both populations is encoded at the same gene locus.



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1. Barr, A. R., Mansooji, A. M., Holtum, J.A.M., and Powles, S. B. 1992. The inheritance of herbicide resistance in Avena sterilis ssp. ludoviciana, biotype SAS 1. Pages 7072 in Proc. 1st International Weed Control Congress, Melbourne, Australia.
2. Betts, K. J., Ehlke, N. J., Wyse, D. L., Gronwald, J. W., and Somers, D. A. 1992. Mechanism of inheritance of diclofop resistance in Italian ryegrass (Lolium multiflorum). Weed Sci. 40: 184189.
3. Brain, P. and Cousens, R. 1989. An equation to describe dose responses where there is stimulation of growth at low doses. Weed Res. 29: 9396.
4. Georghiou, G. P. and Taylor, C. E. 1977. Genetic and biological influences in the evolution of insecticide resistance. J. Econ. Entomol. 70: 319323.
5. Guttieri, M. J., Eberlein, C. V., and Thill, D. C., 1995. Diverse mutations in the acetolactate synthase gene confer chlorsulfuron resistance in kochia (Kochia scoparia biotypes. Weed Sci. 43: 175178.
6. Heap, I. M., Murray, B. G., Loeppky, H. A., and Morrison, I. N. 1993. Resistance to aryloxyphenoxypropionate and cyclohexanedione herbicides in wild oat (Avena fatua). Weed Sci. 41: 232238.
7. Jasieniuk, M., Brûlé-Babel, A. L., and Morrison, I. N. 1996. The evolution and genetics of herbicide resistance in weeds. Weed Sci. 44: 176193
8. Mallory-Smith, C. A., Thill, D. C., Dial, M. J., and Zemetra, R. S. 1990. Inheritance of sulfonylurea herbicide resistance in Lactuca spp. Weed Technol. 4: 787790.
9. Maries, M.A.S. and Devine, M. D. 1995. Characterization of acetyl-coenzyme A carboxylase from sethoxydim-resistant and susceptible wild oat (Avena fatua). Weed Sci. Soc. Abstracts 35: 67.
10. Maxwell, B. D., Rouch, M. L., and Radosevich, S. R. 1990. Predicting the evolution and dynamics of herbicide resistance in weed populations. Weed Technol. 4: 213.
11. Morrison, I. N. and Devine, M. D. 1994. Herbicide resistance in western Canada: five years after the fact. Phytoprotection 75(Suppl): 516.
12. Morrison, I. N., Heap, I. M., and Murray, B. G. 1992. Herbicide resistance in wild oat, the Canadian experience. Proc. 4th International Oat Conf. Adelaide, South Australia, 2: 3640.
13. Mulugeta, D., Fay, P. K., Dyer, W. E., and Talbert, L. E. 1991. Inheritance of resistance to the sulfonylurea herbicides in Kochia scoparia L. (Schrad.). in Proceedings of the Western Weed Science Society. Newark, CA. pp 8182.
14. Murray, B. G., Morrison, I. N., and Brûlé-Babel, A. L. 1994. Inheritance of acetylCoA carboxylase inhibitor resistance in wild oat (Avena fatua). Weed Sci. 43: 233238.
15. Parker, W. B., Marshall, L. C., Burton, J. D., Somers, D. A., Wyse, D. L., Gronwald, J. W., and Gengenbach, B. G. 1990. Dominant mutations causing alterations in acetyl-coenzyme A carboxylase confer tolerance to cyclohexanedione and aryloxyphenoxypropionate herbicides. Proc. Nat. Acad. Sci. 87: 71757179.
16. Saari, L. L., Cotterman, J. C., and Thill, D. C. 1994. Resistance to acetolactate synthase-inhibitor herbicides. Pages 83139 in Powles, S. and Holtum, J., eds. Herbicide Resistance in Plants: Biology and Biochemistry. Lewis Pub., Boca Raton, Fl.
17. Steele, R.G.D. and Torrie, J. H. 1980. Pages 477492 in Napier, C. and Maisel, J. W., eds. Principles and Procedures of Statistics, a Biometrical Approach. McGraw-Hill.
18. Streibig, J. C. 1980. Models for curve-fitting herbicide dose response data. Acta Agriculturae Scandinavica. 30: 5964.
19. Strickberger, M. W. 1976. Probability and statistical testing. Pages 140164 in Genetics. MacMillan Co. Inc., New York.
20. Strickberger, M. W. 1976. Gene mapping in diploids. Pages 332366 in Genetics. MacMillan Co. Inc., New York.



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