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The Journal of Heredity 1993:84(2):142-145
© 1993 The American Genetic Association 84:142-145

research-article

Chromosomal Location of Hessian Fly–Resistance Genes H22, H23, and H24 Derived from Triticum tauschii in the D Genome of Wheat

W. J. Raupp, A. Amri, J. H. Hatchett, B. S. Gill, D. L. Wilson, and T. S. Cox

Department of Plant Pathology, Kansas State University Manhattan, KS 66502-5502
Department of Agronomy, Kansas State University Manhattan, KS 66502-5502
Agricultural Research Service USDA

Please address reprint requests to Dr. Gill at the address above.

Abstract

Triticum tauschii (Coss.) Schmal., the D-genome donor of common wheat (T. aestivum L.) has been a source of several genes for resistance to the Hessian fly, Mayetiola destructor (Say). Three genes, designated H22, H23, and H24, which condition antibiosis to first-instar larvae, were transferred from T. tauschii to common wheat. Monosomic analysis was used to locate the H22, H23, and H24 genes present in the D genome of wheat germplasms KS85WGRC1, KS89WGRC3, and KS89WGRC6, respectively. The seven D-genome Wichita monosomics were crossed with the three germplasms, and F2 populations derived from F1 monosomic plants were tested for reaction to biotype D Hessian fly. Critical and noncritical crosses were identified through goodness-of-fit tests for 3:1 ratios of resistant to susceptible plants. Results established that the H22 gene is located on chromosome 1D, H23 is on chromosome 6D, and H24 is on chromosome 3D. Genetic analysis for determination of the allelic relationship of H23 to the H13 gene, also derived from T. tauschii and previously mapped on chromosome 6DL, indicated the two genes are different and linked at a distance of 25 ± 5.0 map units.


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