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By C. L. McGrath, M. Lynch (auth.), Pamela S. Soltis, Douglas E. Soltis (eds.)

Polyploidy – whole-genome duplication (WGD) – is a primary motive force of biodiversity with major effects for genome constitution, association, and evolution. as soon as thought of a speciation method universal in basic terms in crops, polyploidy is now famous to have performed an important function within the constitution, gene content material, and evolution of such a lot eukaryotic genomes. in truth, the range of eukaryotes turns out heavily tied to a number of WGDs. Polyploidy generates new genomic interactions – at the start leading to “genomic and transcriptomic surprise” – that has to be resolved in a brand new polyploid lineage. This technique primarily acts as a “reset” button, leading to genomic alterations that can eventually advertise adaptive speciation.

This publication brings jointly for the 1st time the conceptual and theoretical underpinnings of polyploid genome evolution with syntheses of the styles and strategies of genome evolution in diversified polyploid teams. simply because polyploidy is commonest and top studied in vegetation, the publication emphasizes plant versions, yet fresh experiences of vertebrates and fungi are offering clean views on components that let polyploid speciation and form polyploid genomes. The rising paradigm is that polyploidy – via adjustments in genome constitution and gene law – generates genetic and phenotypic novelty that manifests itself on the chromosomal, physiological, and organismal degrees, with long term ecological and evolutionary consequences.

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