Abstract
Polyploidy events (polyploidization) followed by progressive loss of redundant genome components are a major feature of plant evolution, with new evidence suggesting that all flowering plants possess ancestral genome duplications. Furthermore, many of our most important crop plants have undergone additional, relatively recent, genome duplication events. Recent advances in DNA sequencing have made vast amounts of new genomic data available for many plants, including a range of important crop species with highly duplicated genomes. Along with assisting traditional forward genetics approaches to study gene function, this wealth of new sequence data facilitates extensive reverse genetics-based functional analyses. However, plants featuring high levels of genome duplication as a result of recent polyploidization pose additional challenges for reverse genetic analysis. Here we review reverse genetic analysis in such polyploid plants and highlight key challenges.
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