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Seed production on Triticum aestivum by Aegilops cylindrica hybrids in the field

Published online by Cambridge University Press:  20 January 2017

Jeremy R. Snyder ,
Carol A. Mallory-Smith ,
Sara Balter ,
Jennifer L. Hansen  and
Robert S. Zemetra
Jeremy R. Snyder
Affiliation:
Department of Crop and Soil Science, Oregon State University, Corvallis, OR 97331
Sara Balter
Affiliation:
Department of Plant, Soil, and Entomological Sciences, University of Idaho, Moscow, ID 83843
Jennifer L. Hansen
Affiliation:
Department of Plant, Soil, and Entomological Sciences, University of Idaho, Moscow, ID 83843
Robert S. Zemetra
Affiliation:
Department of Plant, Soil, and Entomological Sciences, University of Idaho, Moscow, ID 83843
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Abstract

Field experiments were conducted to determine if seeds would be produced on Triticum aestivum by Aegilops cylindrica hybrids in the field and, if it were, to determine the viability of the seeds produced. One, five, or 10 hybrids were planted into varying proportions of A. cylindrica and T. aestivum in a replacement series design. Percent seed set ranged from 0 to 5.5% in 1996 and from 0 to 9.2% in 1997. Seeds were set in all treatments. The average seed set was 2.3% in 1996 and 3.8% in 1997. No differences in seed set were found among treatments. The seeds produced were separated according to seed condition, either full or shriveled, and tested for germination. The germination of the seeds produced on the hybrids was not significantly different between years. The average germination for full seeds was 94% in both years and 79 and 84% for shriveled seeds in 1995 and 1996, respectively. Greenhouse studies were conducted to evaluate the rate of self-fertility of the BC1 generation and to identify morphological characteristics that could be used to identify the probable pollen donor parent and to predict the occurrence of seed set. In 1997 4.1% and in 1998 2.1% of BC1 plants set seeds. The average seed set was 0.3% in 1997 and 0.06% in 1998. It was not possible, using any morphological characteristic measured, to determine the identity of the parent serving as the pollen donor in the previous generation or to predict the occurrence of seed set in the BC1 generation. This is the first reported study to show that hybrids between T. aestivum and A. cylindrica have the ability, although limited, to backcross under field conditions and set seeds. Furthermore, the seeds produced are viable and will germinate and produce plants. With the millions of hectares of T. aestivum infested with A. cylindrica, even the limited ability to backcross is of concern for the movement of a herbicide-resistance gene.

Keywords

Aegilops cylindrica Host AEGCY, jointed goatgrassTriticum aestivum L., wheatHybridgene movementbackcrossAEGCY
Type
Research Article
Information
Weed Science , Volume 48 , Issue 5 , October 2000 , pp. 588 - 593
Copyright
Copyright © Weed Science Society of America 

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References

Literature Cited

Chapman, V., Miller, T. E., and Riley, R. 1976. Equivalence of the A genome of bread wheat and that of Triticum urartu . Genet. Res. 27:69–76.Google Scholar
Donald, W. W. and Ogg, A. G. Jr. 1991. Biology and control of jointed goatgrass (Aegilops cylindrica), a review. Weed Technol. 53:3–17.CrossRefGoogle Scholar
Gates, F. C. 1936. Grasses in Kansas. Topeka, KS: Kansas State Printing Plant, Report 55:220-A of the Kansas State Board of Agriculture, p. 125.Google Scholar
Hafliger, E. and Scholz, H. 1981. Grass Weeds II. Basle, Switzerland: CIBA-GEIGY, p. 1.Google Scholar
Johnston, C. O. and Parker, J. H. 1929. Aegilops cylindrica Host. A wheatfield weed in Kansas. Trans. Kans. Acad. Sci. 32:80–84.CrossRefGoogle Scholar
Kimber, G. and Sears, E. R. 1987. Evolution in the genus Triticum and the origin of cultivated wheat. Pages 154–164 In Heyne, E. G., ed. Wheat and Wheat Improvement. Agronomy Monograph No. 13. Madison, WI: American Society of Agronomy-Crop Science Society of America-Soil Science Society of America.Google Scholar
Mallory-Smith, C. A., Hansen, J., and Zemetra, R. S. 1996. Gene transfer between wheat and Aegilops cylindrica . Pages 441–445 In Proceedings of the Second International Weed Control Congress. Slagelse, Denmark: Department of Weed Control and Pesticide Ecology.Google Scholar
Mayfield, L. 1927. Goat grass—a weed pest of central Kansas wheat fields. Kans. Agric. Student 7:40–41.Google Scholar
Miller, S. D. 1995. An integrated approach to jointed goatgrass control. Pages 27–29 In Proceedings of the Central Great Plains Jointed Goatgrass Conf., Ogallala, NE; Colby, KS; and Sterling, CO. Lincoln, NE: University of Nebraska; Manhattan, KS: Kansas State University; Fort Collins, CO: Colorado State University and USDA-Cooperative State Research Service.Google Scholar
Newhouse, K. E., Smith, W. A., Starett, M. A., Schaffer, T. J., and Singh, B. J. 1992. Tolerance to imidazolinone herbicides in wheat. Plant Physiol. 100:882–886.Google Scholar
Poehlman, J. M. and Sleper, D. A. 1995. Breeding Field Crops. 4th ed. Ames, IA: Iowa State University Press, pp. 259–265.Google Scholar
Priadcencu, A. L., Miclea, C., and Moisescu, L. 1967. The local form of the species of Aegilops cylindrica Host. and its genetic importance. Rev. Roum. Biol.-Bot. 6:421–425.Google Scholar
Seefeldt, S. S., Zemetra, R., Young, F. L., and Jones, S. S. 1998. Production of herbicide-resistant jointed goatgrass (Aegilops cylindrica) × wheat (Triticum aestivum) hybrids in the field by natural hybridization. Weed Sci. 46:632–634.CrossRefGoogle Scholar
Slageren, M. W. van. 1994. Wild Wheats: A Monograph of Aegilops L. and Amblyopyrum (Jaub. & Spach) Eig. Wageningen Agricultual University Papers 7 (94). 513 pp.Google Scholar
Wiese, M. V. 1987. Compendium of Wheat Diseases. 2nd ed. St. Paul, MN: American Phytopathology Society Press. p. 3.Google Scholar
Zemetra, R. S., Hansen, J., and Mallory-Smith, C. 1998. Potential for gene transfer between wheat (Triticum aestivum) and jointed goatgrass (Aegilops cylindrica). Weed Sci. 46:313–317.CrossRefGoogle Scholar