Summary
Karyotypic analysis of a spontaneous monosomic plant isolated from a population ofSesbania macrocarpa (2n=4x=24) revealed that one chromosome of the smallest set was missing. The absence of this chromosome caused a deleterious effect on the meiotic system of the plant, resulting in total male and female sterility. The origin of the species in this context is discussed.
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References
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Thanks are due to Dr B. D. Patil, Indian Grassland and Fodder Research Institute for facilities and to Dr S. K. Gupta, for valuable suggestions.
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Zadoo, S.N. Cytogenetic observations on a monosomic inSesbania macrocarpa Muhl. (Leguminosae). Experientia 40, 1414 (1984). https://doi.org/10.1007/BF01951918
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DOI: https://doi.org/10.1007/BF01951918