Soltis, Pamela S.Marchant, D. BlaineVan de Peer, YvesSoltis, Douglas E.2016-08-152015-12Soltis, PS, Marchant, DB, Van de Peer, Y & Soltis, DE 2015, 'Polyploidy and genome evolution in plants', Current Opinion in Genetics and Development, vol. 35, pp. 119-125.0959-437X (print)1879-0380 (online)10.1016/j.gde.2015.11.003http://hdl.handle.net/2263/56300Plant genomes vary in size and complexity, fueled in part by processes of whole-genome duplication (WGD; polyploidy) and subsequent genome evolution. Despite repeated episodes of WGD throughout the evolutionary history of angiosperms in particular, the genomes are not uniformly large, and even plants with very small genomes carry the signatures of ancient duplication events. The processes governing the evolution of plant genomes following these ancient events are largely unknown. Here, we consider mechanisms of diploidization, evidence of genome reorganization in recently formed polyploid species, and macroevolutionary patterns of WGD in plant genomes and propose that the ongoing genomic changes observed in recent polyploids may illustrate the diploidization processes that result in ancient signatures of WGD over geological timescales.en© 2015 Elsevier Ltd. All rights reserved. Notice : this is the author’s version of a work that was accepted for publication in Current Opinion in Genetics and Development. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Current Opinion in Genetics and Development, vol. 35, pp. 119-125. 2015. doi : 10.1016/j.gde.2015.11.003.PolyploidGenome evolutionPlantsWhole-genome duplication (WGD)Postprint Article