Analysis of genetic changes in radiated and non-radiated bulk oat (Avena sativa L.) populations |
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Authors: | T Fatunla K J Frey |
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Institution: | (1) Department of Plant Science, University of Ife, Ile-Ife, Nigeria;(2) Department of Agronomy, Iowa State University, Ames, Iowa, USA |
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Abstract: | Summary In both radiated and non-radiated oat populations inbreeding coefficients increased more slowly than was expected on the assumption of full selfing and equal selective values for homozygotes and heterozygotes. Assuming 1% outcrossing for oats and a selective value of 1.0 for the mean, the heterozygotes for two loci governing crown rust reaction have an advantage of 50% over the homozygotes. This study supports previous observations that the heterozygote often has a decided advantage in predominantly self-pollinated crops. |
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Keywords: | Selective values Heterozygote advantage Inbreeding coefficient Mixed selfing Maximum likelihood |
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