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The fertility of wheat × jointed goatgrass hybrid and its backcross progenies

Published online by Cambridge University Press:  20 January 2017

Zhining Wang ,
Robert S. Zemetra ,
Jennifer Hansen  and
Carol A. Mallory-Smith
Zhining Wang
Affiliation:
Department of Plant Soil and Entomological Sciences, University of Idaho, Moscow, ID 83844-2339
Jennifer Hansen
Affiliation:
Department of Plant Soil and Entomological Sciences, University of Idaho, Moscow, ID 83844-2339
Carol A. Mallory-Smith
Affiliation:
Department of Crop and Soil Science, Oregon State University, Corvallis, OR 97331
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Abstract

The spontaneous flow of genes from wheat to jointed goatgrass is of great concern to breeders intending to release herbicide-resistant wheat. The objectives of this research were to study how genes could flow from wheat to jointed goatgrass through crossing and backcrossing between these two species and, based on this knowledge, to propose possible ways to minimize the chance of gene flow between them. Results showed that the wheat × jointed goatgrass hybrid can only serve as a female parent to produce the BC1 generation. The BC1 generation was found to have 1.8% male fertility and 4.4% female fertility, indicating that it could serve as either the male or female parent to produce a BC2 generation. The fertility of the resultant BC2 generation further increased. The average male, female, and self-fertility was 8.9, 18.0, and 6.9%, respectively. After the BC2 generation, the backcross progeny has three possible ways to reproduce: to pollinate jointed goatgrass, to be pollinated by jointed goatgrass, or to pollinate itself. Restoration of the chromosome number of jointed goatgrass continues as the BC2 generation is selfed, but some plants can contain an alien chromosome over generations. The possible ways to reduce the chance of gene flow between these two species are (1) prevent the production of hybrids, (2) prevent the production of the BC1 generation, and (3) put a herbicide-resistant gene on the A- or B-genome of wheat.

Keywords

Jointed goatgrassAegilops cylindrica Host AEGCYwheatTriticum aestivum L.Biological riskherbicide resistanceintrogression
Type
Research Article
Information
Weed Science , Volume 49 , Issue 3 , June 2001 , pp. 340 - 345
Copyright
Copyright © Weed Science Society of America 

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References

Literature Cited

Allan, R. E., Peterson, C. J., Rubenthaler, G. L., Line, R. F., and Roberts, D. E. 1989. Registration of ‘Madsen’ wheat. Crop Sci. 29:1575–1576.Google Scholar
Arriola, P. E. and Ellstrand, N. C. 1996. Crop to weed gene flow in the genus Sorghum (Poaceae): spontaneous interspecific hybridization between johnsongrass, Sorghum halepense, and crop sorghum, S. bicolor . Am. J. Bot. 83:1153–1160.CrossRefGoogle Scholar
Brown, J. and Brown, A. P. 1996. Gene transfer between canola (Brassica napus L. and B. campestris L.) and related weed species. Ann. Appl. Biol. 129:513–522.Google Scholar
Burnside, O. C. 1992. Rationale for developing herbicide resistant crops. Weed Technol. 6:621–625.Google Scholar
Chamberlain, D. and Stewart, C. N. Jr. 1999. Transgene escape and transplastomics. Nat. Biotechnol. 17:330–331.Google Scholar
Chevre, A.-M., Eber, F., Baranger, A., and Renard, M. 1997. Gene flow from transgenic crops. Nature 389:924.CrossRefGoogle Scholar
Daniell, H., Datta, R., Varma, S., Gray, S., and Lee, S. B. 1998. Containment of herbicide resistance through genetic engineering of the chloroplast genome. Nat. Biotechnol. 16:345–348.Google Scholar
Daniell, H. and Varma, S. 1998. Chloroplast-transgenic plants: panacea—no! gene containment—yes! Nat. Biotechnol. 16:602.Google Scholar
Johnston, C. O. and Parker, J. H. 1929. Aegilops cylindrica Host, a wheat field weed in Kansas. Trans. Kans. Acad. Sci. 32:80–84.CrossRefGoogle Scholar
Jørgensen, R. B. and Andersen, B. 1994. Spontaneous hybridization between oilseed rape (Brassica napus) and weedy B. campestris (Brassicaceae): a risk of growing genetically modified oilseed rape. Am. J. Bot. 81:1620–1626.Google Scholar
Mayfield, L. 1927. Goatgrass—a weed pest of central Kansas wheat fields. Kans. Agric. Student 7:40–41.Google Scholar
Metz, P.L.J., Jacobsen, E., and Stiekema, W. J. 1997. The impact on biosafety of the phosphinothricin-toleran in inter-specific B. rapa × B. napus hybrids and their successive backcross. Theor. Appl. Genet. 95:442–450.CrossRefGoogle Scholar
Mikkelsen, T. R., Jensen, J., and Jørgensen, R. B. 1996. Inheritance of oilseed rape (Brassica napus) RAPD markers in a backcross progeny with Brassica campestris . Theor. Appl. Genet. 92:492–497.CrossRefGoogle Scholar
Seefeldt, S. S., Zemetra, R. S., 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
Snyder, J., Mallory-Smith, C., Balter, S., Hansen, J. L., and Zemetra, R. S. 2000. Seed production on Triticum aestivum by Aegilops cylindrica hybrids in the field. Weed Sci. 48:588–593.Google Scholar
Stewart, C. N. Jr., and Prakash, C. S. 1998. Chloroplast-transgenic plants are not a gene flow panacea. Nat. Biotechnol. 16:401.Google Scholar
Wang, Z. N., Hang, A., Hansen, J., Burton, C., Mallory-Smith, C. A., and Zemetra, R. S. 2000. Visualization of A- and B-genome chromosomes in wheat (Triticum aestivum L.) × jointed goatgrass (Aegilops cylindrica Host) backcross progenies. Genome 43:1038–1044.Google Scholar
Whitton, J., Wolf, D. E., Arias, D. M., Snow, A. A., and Reiseberg, L. H. 1997. The persistence of cultivar alleles in wild populations of sunflowers five generations after hybridization. Theor. Appl. Genet. 95:33–40.Google Scholar
Zemetra, R. S., Hansen, J., and Mallory-Smith, C. A. 1998. Potential for gene transfer between wheat (Triticum aestivum) and jointed goatgrass (Aegilops cylindrica). Weed Sci. 46:313–317.Google Scholar