Hostname: page-component-78c5997874-xbtfd Total loading time: 0 Render date: 2024-11-06T01:00:31.116Z Has data issue: false hasContentIssue false
  • English
  • Français

Resistance Allele Movement between Imazamox-Resistant Wheat and Jointed Goatgrass (Aegilops cylindrica) in Eastern Oregon Wheat Fields

Published online by Cambridge University Press:  20 January 2017

Bianca A. B. Martins ,
Luna Sun  and
Carol Mallory-Smith
Bianca A. B. Martins*
Affiliation:
Crop and Soil Science Department, Oregon State University, 107 Crop Science Building, Corvallis, OR, 97331
Luna Sun
Affiliation:
Statistics Department, Oregon State University, 44 Kidder Hall, Corvallis, OR, 97331
Carol Mallory-Smith
Affiliation:
Crop and Soil Science Department, Oregon State University, 107 Crop Science Building, Corvallis, OR, 97331
*
Corresponding author's E-mail: [email protected]
Get access Rights & Permissions [Opens in a new window]

Abstract

Imazamox-resistant wheat varieties carry the Imi1 allele, which confers resistance to the imidazolinone (IMI) herbicide imazamox. This resistance trait allows the selective control of jointed goatgrass, a difficult-to-control winter annual grass weed. Allele movement between IMI-resistant wheat and jointed goatgrass may occur via hybridization and backcross events. Hybrids (F1) of IMI-resistant wheat and jointed goatgrass were identified in 2008 in a commercial wheat field in Eastern Oregon. In 2009 and 2010, surveys were conducted in Eastern Oregon to determine the prevalence of the Imi1 allele in wheat × jointed goatgrass hybrids. Using polymerase chain reaction assays we detected the presence of the Imi1 allele. A total of 128 sites were surveyed over the 2 yr. Of 1,548 plants sampled, 1,100 were positive for the Imi1 alelle and of those, 1,087 were heterozygous and 13 were homozygous for the allele. We assessed hybrid yield components and how these components varied across the sampled sites. The association between the proportion of IMI-resistant hybrids and the area or management practice in the commercial fields was determined. Nonagricultural sites or production of IMI-resistant wheat in consecutive years were two factors associated with a greater proportion of IMI-resistant hybrids. Our results demonstrate that the Imi1 allele is moving from IMI-resistant wheat to jointed goatgrass, producing resistant hybrids and backcross plants. This is the first report of natural occurrence of IMI-resistant backcross plants in commercial wheat fields. Therefore, it is important to implement field management practices that reduce IMI-resistant hybrid production and to effectively manage nonagricultural areas with jointed goatgrass infestations to prevent introgression of the IMI-resistance allele.

Keywords

Imazamoxjointed goatgrass, Aegilops cylindrica Host.winter wheat, Triticum aestivum L.Acetolactate synthaseALS resistancegene flowintrogression
Type
Weed Biology and Ecology
Information
Weed Science , Volume 63 , Issue 4 , December 2015 , pp. 855 - 863
Copyright
Copyright © Weed Science Society of America 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Footnotes

Current address: Weed Management and Herbicide Dynamics Laboratory, Brazilian Agricultural Research Corporation (EMBRAPA) Maize and Sorghum, Crop Protection Sector, Rod. MG 424 km45, P.O. box 151, Sete Lagoas, MG, Brazil.

Associate Editor for this paper: William Vencill, University of Georgia.

References

Literature Cited

Anderson, JA, Matthiesen, L, Hegstad, J (2004) Resistance to an imidazolinone herbicide is conferred by a gene on chromosome 6DL in the wheat line cv. 9804. Weed Sci 52:83–90.Google Scholar
Arnold, ML (1997) Natural hybridization and evolution. Oxford Oxford University Press. 232 pGoogle Scholar
Cattell, RB (1966) The scree test for the number of factors. Multiv Behav Res 1:245–276.Google Scholar
Kaiser, HF, (1960) The application of electronic computers to factor analysis. Educ Psychol Meas 20:141–151.Google Scholar
Kimber, G, Sears, E (1987) Evolution in the genus Triticum and the origin of cultivated wheat. Pages 154–164 in Heyne, EG, ed. Wheat and Wheat Improvements. Madison, WI American Society of Agronomy.Google Scholar
Kroiss, LJ, Tempalli, P, Hansen, JL, Vales, MI, Riera-Lizarazu, O, Zemetra, RS, Mallory-Smith, CA (2004) Marker-assessed retention of wheat chromatin in wheat (Triticum aestivum) by jointed goatgrass (Aegilops cylindrica) backcross derivatives. Crop Sci. 44:1429–1433.Google Scholar
Linc, G, Friebe, BR, Kynast, RG, Molnar-Lang, M, Koszegi, B, Sutka, J, Gill, BS (1999) Molecular cytogenetic analysis of Aegilops cylindrica host. Genome 42:497–503.Google Scholar
Liu, Y, Wei, W, Ma, K, Li, J, Liang, Y, Darmency, H (2013) Consequences of gene flow between oilseed rape (Brassica napus) and its relatives. Plant Sci 211:42–51.Google Scholar
Perez-Jones, A, Martins, BAB, Mallory-Smith, CA (2010) Hybridization in a commercial production field between imidazolinone-resistant winter wheat and jointed goatgrass (Aegilops cylindrica) results in pollen-mediated gene flow of Imi1 . Weed Sci 58:395–401.Google Scholar
SAS (2008) SAS/STAT® 9.2 User's Guide. Cary, NC SAS Institute Inc.Google Scholar
Seefeldt, SS, Zemetra, R, Young, FL, Jones, SS (1998) Production of herbicide-resistant jointed goatgrass (Aegilops cylindrica) × wheat (Triticum aestivum) hybrids in the field by natural hybridization. Weed Sci 46:632–634.Google Scholar
[USDA] U.S. Department of Agriculture (2013) USDA Agricultural Projections to 2022. USDA, Washington D.C. Interagency Agricultural Projections Committee. 99 pGoogle Scholar
[USDA-NASS] U.S. Department of Agriculture–National Agriculture Statistical Service (2011) Oregon Wheat Varieties. http://www.nass.usda.gov. Accessed January 31, 2014.Google Scholar
[USDA-NASS] U.S. Department of Agriculture–National Agriculture Statistical Service (2015) Crop Production, 2014 Summary. http://usda.mannlib.cornell.edu/usda/current/CropProdSu/CropProdSu-01-12-2015_revision.pdf. Accessed February 16, 2015.Google Scholar
[USDA-NRCS] U.S. Department of Agriculture–Natural Resources Conservation Service (2010) PLANTS Database. http://www.plants.usda.gov. Accessed February 2, 2015.Google Scholar
Van Slageren, M (1994) Wild wheats: A Monograph of Aegilops L. and Amblyopyrum (Jaub. & Spach) Eig (Poaceae). Aleppo, Syria Wageningen Agriculture University Papers. 513 pGoogle Scholar
Washington State University (2009) Grass Weeds in Wheat. http://jointedgoatgrass.wsu.edu. Accessed January 6, 2014.Google Scholar
White, AD, Stahlman, PW, Northam, FE (2004) Impact of integrated management systems on jointed goatgrass (Aegilops cylindrica) populations. Weed Sci 52:1010–1017.Google Scholar
Zaharieva, M, Monneveux, P (2006) Spontaneous hybridization between bread wheat and its wild relatives in Europe. Crop Sci 46:512.Google Scholar
Zemetra, RS, Hansen, J, Mallory-Smith, CA (1998) Potential for gene transfer between wheat (Triticum aestivum) and jointed goatgrass (Aegilops cylindrica). Weed Sci 46:313–317.Google Scholar
Zhao, C, Ascenzi, R, Singh, BK, inventors; BASF Aktiengesellschaft, assignee (2005) Methods and compositions for analyzing AHASL genes. U.S. patent WO2005093093.Google Scholar