Author
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ZANTOKO, L - PURDUE UNIV PHD STUDENT |
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Shukle, Richard |
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Submitted to: Journal of Heredity
Publication Type: Peer Reviewed Journal Publication Acceptance Date: 5/15/1998 Publication Date: N/A Citation: N/A Interpretive Summary: The Hessian fly is the most important insect pest of wheat in the soft winter wheat areas of the eastern United States. In Georgia losses estimated at 4 million dollars in 1986 and 28 million dollars in 1989 have been attributed to this insect. For the past 40 years resistant wheat has been the primary control method for the Hessian fly. However, Hessian fly continue to develop that can live on resistant wheat. Understanding how Hessian fly can live on resistant wheat is essential to the continued protection of wheat. We have found a group of genes in Hessian fly that are close to each other and that enable Hessian fly to live on resistant wheat. The knowledge reported about these genes will allow scientists to study the genes and understand how Hessian fly can live on resistant wheat. This will ensure the development of new resistant wheat and continued protection of wheat from Hessian fly. Technical Abstract: We have mapped a DNA sequence, E09617, linked to the allele controlling white-eye (w) in Hessian fly and to the allele controlling virulence in Hessian fly to resistance gene H13 in wheat (vrH13). The alleles w, E09617, and vrH13 are sex linked and form a single linkage group. Order of the alleles was inferred from the recombinant genotypes in backcross F2 progenies. The importance of a linkage group anchored to the white-eye marker that includes alleles at single loci for virulence in Hessian fly to genes for resistance in wheat to the accessibility of virulence/avirulence alleles to positional cloning is discussed. |
