A partially male-sterile mutant line of soybeans,Glycine max (L.) Merr.: inheritance |
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| Authors: | David M Stelly Reid G Palmer |
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| Institution: | (1) Department of Agronomy, Iowa State University, 50011 Ames, Iowa, USA;(2) Present address: Department of Horticulture, University of Wisconsin, 53706 Madison, Wisconsin, USA;(3) Present address: Research Geneticist, SEA-ARS, USDA,, Iowa State University, 50011 Ames, Iowa, USA |
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| Abstract: | Summary A partial male sterility system in the soybean (Glycine max (L.) Merr.) germplasm population AP6(SI)CI was found to be controlled monogenically by a recessive allele, msp. Observations of msp msp plants in different environments suggested that environmental conditions significantly affect expressivity of the msp allele with respect to male sterility. We obtained no experimental evidence of cytoplasmic effects on msp expression. Background genotypes, however, seem to affect msp expressivity through their determination of flowering dates and resultant interactions with varying environmental conditions.Homogeneous populations of partially male-sterile plants can be generated by increasing families of msp msp plants in fertility-inducing environments, if measures are implemented to prevent the introduction and/or build-up of fertile genotypes that arise from natural cross-pollinations.Joint contribution: North Central Region, Agricultural Research, Science and Education Administration, U.S. Department of Agriculture, and Journal Paper No. J-9596 of the Iowa Agriculture and Home Economics Experiment Station, Ames, Iowa 50011; Project 2107. |
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| Keywords: | Glycine max soybean male-sterile mutant |
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