Abstract
This chapter explores the role of recombination, broadly defined, as a major agency in the elaboration of adaptive novelties in plant genomes. We consider the horizontal transfer of genes from the plastid genome into the nuclear genome, the integration of foreign DNA within the plant mitochondrial genome and the evidence for gene duplication within plant genomes as evidence of recombinational influences on plant genomes. We argue that each of these processes has lead to biochemical and metabolic adaptations that have shaped plant evolution. We also discuss the role of ectopic exchange and the effect of linkage on gene evolution in plant species. There is clear evidence for the significance of intragenic recombination as a major factor in the origin of novel alleles. Finally, we consider the interaction between linkage and selection in the structuring of plant genetic diversity.
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Clegg, M.T. (1999). The Role of Recombination in Plant Genome Evolution. In: Wasser, S.P. (eds) Evolutionary Theory and Processes: Modern Perspectives. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-4830-6_4
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DOI: https://doi.org/10.1007/978-94-011-4830-6_4
Publisher Name: Springer, Dordrecht
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