Abstract
The evolutionary forces which operate within a given plant population both produce and sort out genetic variation. In higher plants, evolution is mainly concerned with the restructuring of polygenic variation and the fixation of new adaptive gene combinations. In this way, evolution proceeds from the molecular level of mutation to the adaptation of individuals in populations.
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Urbanska, K.M. (1987). Disturbance, hybridization and hybrid speciation. In: Van Andel, J., Bakker, J.P., Snaydon, R.W. (eds) Disturbance in Grasslands. Geobotany, vol 10. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-4055-0_20
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