Evolutionary Significance of Whole-Genome Duplication.- Genetic Consequences of Polyploidy in Plants.- Meiosis in polyploid plants.- Origins of Novel Phenotypic Variation in Polyploids.- Identifying the Phylogenetic Context of Whole-Genome Duplications in Plants.- Ancient and Recent Polyploidy in Monocots.- Genomic Plasticity in Polyploid Wheat.- Maize (Zea mays) as a model for studying the impact of gene and regulatory sequence loss following whole genome duplication.- Polyploidy in legumes.- Jeans, genes, and genomes: cotton as a model for studying polyploidy.-Evolutionary implications of genome and karyotype restructuring in Nicotiana tabacum L.- Polyploid evolution in Spartina: Dealing with highly redundant hybrid genomes.- Allopolyploid speciation in action: the origins and evolution of Senecio cambrensis.- The early stages of polyploidy: rapid and repeated evolution in Tragopogon.- Yeast as a window into changes in genome complexity due to polyploidization.- Two Rounds of Whole Genome Duplication: Evidence and Impact on the Evolution of Vertebrate Innovations.- Polyploidy in fish and the teleost genome duplication.- Polyploidization and sex chromosome evolution in amphibians.-