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Speciation Success of Polyploid Plants Closely Relates to the Regulation of Meiotic Recombination

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...

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Autores principales: Pelé, Alexandre, Rousseau-Gueutin, Mathieu, Chèvre, Anne-Marie
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6031745/
https://www.ncbi.nlm.nih.gov/pubmed/30002669
http://dx.doi.org/10.3389/fpls.2018.00907
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author Pelé, Alexandre
Rousseau-Gueutin, Mathieu
Chèvre, Anne-Marie
author_facet Pelé, Alexandre
Rousseau-Gueutin, Mathieu
Chèvre, Anne-Marie
author_sort Pelé, Alexandre
collection PubMed
description 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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spelling pubmed-60317452018-07-12 Speciation Success of Polyploid Plants Closely Relates to the Regulation of Meiotic Recombination Pelé, Alexandre Rousseau-Gueutin, Mathieu Chèvre, Anne-Marie Front Plant Sci Plant Science 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. Frontiers Media S.A. 2018-06-28 /pmc/articles/PMC6031745/ /pubmed/30002669 http://dx.doi.org/10.3389/fpls.2018.00907 Text en Copyright © 2018 Pelé, Rousseau-Gueutin and Chèvre. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Plant Science
Pelé, Alexandre
Rousseau-Gueutin, Mathieu
Chèvre, Anne-Marie
Speciation Success of Polyploid Plants Closely Relates to the Regulation of Meiotic Recombination
title Speciation Success of Polyploid Plants Closely Relates to the Regulation of Meiotic Recombination
title_full Speciation Success of Polyploid Plants Closely Relates to the Regulation of Meiotic Recombination
title_fullStr Speciation Success of Polyploid Plants Closely Relates to the Regulation of Meiotic Recombination
title_full_unstemmed Speciation Success of Polyploid Plants Closely Relates to the Regulation of Meiotic Recombination
title_short Speciation Success of Polyploid Plants Closely Relates to the Regulation of Meiotic Recombination
title_sort speciation success of polyploid plants closely relates to the regulation of meiotic recombination
topic Plant Science
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6031745/
https://www.ncbi.nlm.nih.gov/pubmed/30002669
http://dx.doi.org/10.3389/fpls.2018.00907
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