The Journal of Heredity 1984:75(2):147-148
© 1984 The American Genetic Association 75:147-148
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Chromosome location of the H5 gene for resistance to the Hessian fly in wheat
research agronomist, ARS, U.S. Department of Agriculture, and assistant professor of Agronomy, Purdue University
professor of entomology and former research entomologist, ARS, U.S. Department of Agriculture, Purdue University West Lafayette, IN 47907
Abstract
A modified monosomic analysis was performed to determine the chromosome location of the H5H5 gene pair in wheat for resistance to the Hessian fly. Each of the 21 aneuploids was crossed to Downy wheat and the resulting derived F3 progenies were tested with biotype D of the Hessian fly. A critical cross was readily identified both through goodness-of-fit tests for the 97:3 genetic ratio, and by the distribution of resistance families. These tests provided evidence that the H5H5 gene pair is located on chromosome 1A, and most likely on the short arm. By established linkage relationships, the H11H11 gene pair for resistance to Hessian fly also is on chromosome 1A. This information is of value to programs developing pest-resistant wheat germplasm and cultivars.
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D. Sandhu, J. A. Champoux, S. N. Bondareva, and K. S. Gill Identification and Physical Localization of Useful Genes and Markers to a Major Gene-Rich Region on Wheat Group 1S Chromosomes Genetics, April 1, 2001; 157(4): 1735 - 1747. [Abstract] [Full Text] |
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