Abstract
Overcoming the barriers associated with pollination and zygotic development to successfully produce interspecific hybrids between wild and cultivated species (Chapter 5), does not necessarily mean that the variation within the alien species can be used in breeding. The accessibility of alien variation to the breeder is dependent on the genetic relationship between the wild and cultivated species. Divergence between these forms, which impose restriction on chromosome pairing and hence recombination, limit the usefulness of hybrids between them in breeding programmes. The successful use of alien variation in breeding is related to the strength of internal barriers to the free flow of genes between the wild and cultivated species and the ingenuity of the plant breeder/cytogeneticist to overcome these barriers.
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Thomas, H. (1993). Chromosome manipulation and polyploidy. In: Hayward, M.D., Bosemark, N.O., Romagosa, I., Cerezo, M. (eds) Plant Breeding. Plant Breeding Series. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-1524-7_7
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DOI: https://doi.org/10.1007/978-94-011-1524-7_7
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