Cytoplasmic-genetic male sterility in radish (Raphanus sativus L.). Identification of maintainers,inheritance of male sterility and effect of environmental factors |
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| Authors: | M Nieuwhof |
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| Institution: | (1) Institute for Horticultural Plant Breeding (IVT), P.O. Box 16, 6700 AA Wageningen, the Netherlands |
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| Abstract: | Summary Research has been carried out on identification of maintainers for cytoplasmic-genetic male sterile lines in Japanese and European radish, on the mode of inheritance of male sterility and on the effect of environmental factors on the expression of this character.In a Japanese radish population and in most early European radish populations maintainers were found in high frequency. Segregations for male sterility in full-sib families, obtained by crossing male sterile and male fertile plants, and in backcross generations, indicated that male sterility is probably determined by one dominant and two recessive independently acting genes, but also minor genes may be involved.The expression of male sterility was not affected by seasonal influences. In some populations a reversible temperature effect was found, most ms plants occurred at 10, 14 and 26°C and most mf plants at 17 and 20°C. |
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| Keywords: | Raphanus sativus radish cytoplasmic-genetic male sterility environmental influence on male sterility inheritance maintainer lines temperature |
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