Reducing MSH4 copy number prevents meiotic crossovers between non-homologous chromosomes in Brassica napus

Autor: Adrián Gonzalo, Marie-Odile Lucas, Catherine Charpentier, Greta Sandmann, Andrew Lloyd, Eric Jenczewski

Publikováno v: Nature Communications, Vol 10, Iss 1, Pp 1-9 (2019)

Non-homologous crossovers impair correct chromosome segregation in allopolyploids. Here the authors show that most non-homologous crossovers in Brassica napus arise from MSH4-dependent recombination and provide evidence that post-polyploidization red

Externí odkaz: https://doaj.org/article/d15b2afdd223409c9dabd7168d99dfbb

FANCM Limits Meiotic Crossovers in Brassica Crops

Autor: Aurélien Blary, Adrián Gonzalo, Frédérique Eber, Aurélie Bérard, Hélène Bergès, Nadia Bessoltane, Delphine Charif, Catherine Charpentier, Laurence Cromer, Joelle Fourment, Camille Genevriez, Marie-Christine Le Paslier, Maryse Lodé, Marie-Odile Lucas, Nathalie Nesi, Andrew Lloyd, Anne-Marie Chèvre, Eric Jenczewski

Publikováno v: Frontiers in Plant Science, Vol 9 (2018)

Meiotic crossovers (COs) are essential for proper chromosome segregation and the reshuffling of alleles during meiosis. In WT plants, the number of COs is usually small, which limits the genetic variation that can be captured by plant breeding progra

Externí odkaz: https://doaj.org/article/2b9631a3c8194961940e728952780a7f

Meiotic effects of MSH4 copy number variation support an adaptive role for post-polyploidy gene loss

Autor: Adrián Gonzalo, Marquis C, Marie-Odile Lucas, Andrew H. Lloyd, Eric Jenczewski

Many eukaryotes descend from polyploid ancestors that experienced massive duplicate gene loss. This genomic erosion is particularly strong for duplicated (meiotic) recombination genes that return to a single copy more rapidly than genome average foll

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0e3c01cc540231f2ce490dd48981feb1

Repeated Polyploidy Drove Different Levels of Crossover Suppression between Homoeologous Chromosomes inBrassica napusAllohaploids

Autor: Marie-Odile Lucas, Anne-Marie Chèvre, Marta Cifuentes, Eric Jenczewski, Maryse Lodé, Frédérique Eber

Publikováno v: The Plant cell
The Plant cell, American Society of Plant Biologists (ASPB), 2010, 22 (7), pp.2265-2276. ⟨10.1105/tpc.109.072991⟩
Plant Cell
Plant Cell, American Society of Plant Biologists, 2010, 22 (7), pp.2265-2276. ⟨10.1105/tpc.109.072991⟩
Plant Cell 7 (22), 2265-2276. (2010)
The Plant cell, 2010, 22 (7), pp.2265-2276. ⟨10.1105/tpc.109.072991⟩

L'article original est publié par The American Society of Plant Biologists; Allopolyploid species contain more than two sets of related chromosomes (homoeologs) that must be sorted during meiosis to ensure fertility. As polyploid species usually hav

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3e4b90df433680f47e5f11a96a826f49
https://doi.org/10.1105/tpc.109.072991

A Dominant Point Mutation in a RINGv E3 Ubiquitin Ligase Homoeologous Gene Leads to Cleistogamy in Brassica napus

Autor: Régine Delourme, Cyril Falentin, Boulos Chalhoub, Yun Hai Lu, Michel Renard, Marie-Odile Lucas, Dominique Arnaud, Nathalie Piel, Harry Belcram, Patricia Rouault, Jérémy Just

Publikováno v: Plant Cell
Plant Cell, American Society of Plant Biologists, 2012, 24 (12), pp.4875-4891. ⟨10.1105/tpc.112.104315⟩
The Plant cell
The Plant cell, American Society of Plant Biologists (ASPB), 2012, 24 (12), pp.4875-4891. ⟨10.1105/tpc.112.104315⟩
The Plant cell, 2012, 24 (12), pp.4875-4891. ⟨10.1105/tpc.112.104315⟩

In the allopolyploid Brassica napus, we obtained a petal-closed flower mutation by ethyl methanesulfonate mutagenesis. Here, we report cloning and characterization of the Bn-CLG1A (CLG for cleistogamy) gene and the Bn-clg1A-1D mutant allele responsib

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::85d81b8bc14bef4f412692b17469d385
https://hal.archives-ouvertes.fr/hal-01208649