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Attempted pollen-transmission of cytoplasmic male sterility and the spontaneous occurrence of male sterility in O-type lines of sugar beet (Beta vulgaris L.)

Hornsey, K.G.

Tag. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik 43(1): 31-34

1973


ISSN/ISBN: 0040-5752
PMID: 24424847
DOI: 10.1007/bf00277830
Accession: 051706854

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Several instances of the occurrence of male-sterile individuals in progenies of O-type sugar beet lines are described, and the theoretical explanations considered. An attempt was made to transmit cytoplasmic male sterility through massive pollination by plants carrying S-plasm and fertility-restoring genes. No male sterility was demonstrated in the F1 generation, nor in the backcross to the O-type line used as the original recipient. It was concluded that pollen-transmission did not provide an acceptable explanation of the observed degree of contamination of the 0-types, and that N-plasm may have changed into S-plasm in these cases. Segregation of the monogerm character in the same material could not be satisfactorily explained in terms of simple genetic control.

Attempted pollen-transmission of cytoplasmic male sterility and the spontaneous occurrence of male sterility in O-type lines of sugar beet (Beta vulgaris L.)

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