Читать книгу Principles of Plant Genetics and Breeding - George Acquaah - Страница 119

There are three basic forms of selection – stabilizing, disruptive, and directional – the last form being the one of most concern to plant breeders. These forms of selection operate to varying degrees under both natural and artificial selection. A key difference lies in the goal. In natural selection, the goal is to increase the fitness of the species, whereas in plant breeding, breeders impose artificial selection usually to direct the population toward a specific goal (not necessarily the fittest).