Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 539295
Title Speciation success of polyploid plants closely relates to the regulation of meiotic recombination
Author(s) Pelé, Alexandre; Rousseau-Gueutin, Mathieu; Chèvre, Anne-Marie
Source Frontiers in Plant Science 9 (2018). - ISSN 1664-462X
DOI https://doi.org/10.3389/fpls.2018.00907
Department(s) Laboratory of Plant Breeding
Publication type Refereed Article in a scientific journal
Publication year 2018
Keyword(s) Crossover - Diploidization - Genome evolution - Meiosis - Polyploidy - Recombination - Unreduced gametes
Abstract

Polyploidization is a widespread phenomenon, especially in flowering plants that have all undergone at least one event of whole genome duplication during their evolutionary history. Consequently, a large range of plants, including many of the world’s crops, combines more than two sets of chromosomes originating from the same (autopolyploids) or related species (allopolyploids). Depending on the polyploid formation pathway, different patterns of recombination will be promoted, conditioning the level of heterozygosity. A polyploid population harboring a high level of heterozygosity will produce more genetically diverse progenies. Some of these individuals may show a better adaptability to different ecological niches, increasing their chance for successful establishment through natural selection. Another condition for young polyploids to survive corresponds to the formation of well-balanced gametes, assuring a sufficient level of fertility. In this review, we discuss the consequences of polyploid formation pathways, meiotic behavior and recombination regulation on the speciation success and maintenance of polyploid species.

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