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Article

Genomic Divergence Shaped the Genetic Regulation of Meiotic Homologous Recombination in Brassica Allopolyploids.

Molecular biology and evolution - 1 Apr 2025

Pelé Alexandre, Falque Matthieu, Lodé-Taburel Maryse, Huteau Virginie, Morice Jérôme, Coriton Olivier, Martin Olivier C, Chèvre Anne-Marie, Rousseau-Gueutin Mathieu

Abstract excerpt

The tight regulation of meiotic recombination between homologs is disrupted in Brassica AAC allotriploids, a genomic configuration that may have facilitated the formation of rapeseed (Brassica napus L.) ∼7,500 years ago. Indeed, the presence of the haploid C genome induces supernumerary crossovers between homologous A chromosomes with dramatically reshaped distribution. However, the genetic mechanisms driving...

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Topics

Meiosis
Homologous Recombination
Brassica
Polyploidy
Genome, Plant
Brassica napus

Methodology Data sources Editorial policy Privacy Delete account & data About Contact Helena Bioinformatics

Chromosomes, Plant

Crossing Over, Genetic

Polymorphism, Single Nucleotide

Source

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Identifiers

PMID: 40173423
DOI: 10.1093/molbev/msaf073
PMCID: PMC11982612

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