Discovery and translation of genetic resistance to soybean cyst nematode
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The Department of Agronomy seeks to teach the study of the farm-field, its crops, and its science and management. It originally consisted of three sub-departments to do this: Soils, Farm-Crops, and Agricultural Engineering (which became its own department in 1907). Today, the department teaches crop sciences and breeding, soil sciences, meteorology, agroecology, and biotechnology.
History
The Department of Agronomy was formed in 1902. From 1917 to 1935 it was known as the Department of Farm Crops and Soils.
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1902–present
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- Department of Farm Crops and Soils (1917–1935)
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- College of Agriculture and Life Sciences (parent college)
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Abstract
The overall theme of the research reported in this dissertation was to discover and translate new genetic knowledge about genetic resistance of soybean cyst nematode (SCN). The research had three distinct projects. The first project addressed the hypothesis that there are no new QTL from alternate sources of SCN resistance. Five families of Recombinant Inbred Lines (RILs) derived from novel sources of resistance for races 1, 2, 3, and 5 were developed to test the hypothesis. The second and third projects addressed hypotheses based on the results of the first project. The second project addressed the hypothesis that there was no difference between a Traditional Introgression Backcross Design and a design that used Integer Programming coupled with the Predicted Cross Value to introgress multiple QTL from multiple donors into one recipient line. Criteria for comparing the two designs included cost, time and probability of success. The third project is a preliminary assessment of three models to estimate the total number of QTL for SCN resistance. The models were adapted from models developed by statistical ecologists to estimate abundance of species in habitats.