Immediately after a gene duplication event, the duplicate genes have redundant functions. Is
natural selection therefore completely relaxed after duplication? Does one gene evolve …

Gene copy-number differences due to gene duplications and deletions are rampant in
natural populations and play a crucial role in the evolution of genome complexity. Per-locus …

Background Allopolyploid speciation requires rapid evolutionary reconciliation of two
diverged genomes and gene regulatory networks. Here we describe global patterns of gene …

Genome duplication is potentially a good source of new genes, but such genes take time to
evolve. We have found a group of 'duplication-resistant'genes, which have undergone …

Polyploidy, or whole genome duplication, has played a major role in the evolution of many
eukaryotic lineages. Although the prevalence of polyploidy in plants is well documented, the …

Tremendous diversity exists among organisms with respect to their ploidy level, defined as
the number of sets of homologous chromosomes per cell. As differences in ploidy represent …