Summary
The cause of male sterility in 3 soybean lines, TGM 103-1, N-69-2774 and TGM 242-4 was studied. In TGM 103-1, which was both male and female sterile, two different abnormalities were associated with sterility. Precocious movement of a few chromosomes at the metaphase I stage resulted into the production of non-functional pollen while cells which underwent apparent normal meiotic division had disintergration of the tapetal cell wall immediately after the free microspore stage leading to the starvation and subsequent death of the developing microspores. In lines N-69-2774 and TGM 242-4, both of which were partially sterile, male sterility resulted from a failure of cytokinesis after the telophase II stage. Meiosis proceeded normally but the 4 microspores after telophase II failed to separate into pollen grains and degenerated thereafter.
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Communicated by H.F. Linskens
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Rubaihayo, P.R., Gumisiriza, G. The causes of genetic male sterility in 3 soybaen lines. Theoret. Appl. Genetics 53, 257–260 (1978). https://doi.org/10.1007/BF00280988
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DOI: https://doi.org/10.1007/BF00280988