Evolutionary trends in Vicia faba L.
- 1 April 1973
- journal article
- research article
- Published by Springer Nature in Theoretical and Applied Genetics
- Vol. 43 (2) , 59-65
- https://doi.org/10.1007/bf00274958
Abstract
1. Distances have been calculated between thirty natural populations of Vicia faba. 2. The results strongly suggest the existence of a Central Nucleus from which different trends of evolution have arisen. 3. The Central Nucleus represents the equilibrium between different genetic tendencies; this equilibrium is postulated for the primitive populations of this species. 4. Disturbance of this balanced system can be produced by cycles of cross and self-fertilization; recombinations following these cycles are the origin of new genetic combinations so that a new equilibrium is reached with a new cycle of disturbance. 5. The Muratova classification is discussed. It is not possible to give a new classification based on these concepts, because of the great number of possible lines of evolution. The species must be considered as a whole, because there are no genetic barriers of isolation, only geographical ones and no sterility barriers have been produced between the subspecies. 6. A description of the Central Nucleus of Evolution is given.Keywords
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- Studies on the breeding system of the field bean, Vicia faba (L.)Heredity, 1960
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