Results 21 to 30 of about 33,318 (207)

A simple model for the influence of meiotic conversion tracts on GC content. [PDF]

open access: yesPLoS ONE, 2011
A strong correlation between GC content and recombination rate is observed in many eukaryotes, which is thought to be due to conversion events linked to the repair of meiotic double-strand breaks. In several organisms, the length of conversion tracts has
Marie-Claude Marsolier-Kergoat
doaj   +1 more source

Probing Meiotic Recombination Decisions [PDF]

open access: yesDevelopmental Cell, 2008
Meiotic recombination promotes genetic variation by mixing parental alleles. Two recent studies, one in this issue of Developmental Cell, have applied microarray-based methods that allow analysis of nearly all of the recombination events occurring in a single meiosis.
Roig, Ignasi, Keeney, Scott
openaire   +2 more sources

H4K44 Acetylation Facilitates Chromatin Accessibility during Meiosis

open access: yesCell Reports, 2015
Meiotic recombination hotspots are associated with histone post-translational modifications and open chromatin. However, it remains unclear how histone modifications and chromatin structure regulate meiotic recombination. Here, we identify acetylation of
Jialei Hu   +7 more
doaj   +1 more source

Comparative transcriptomic analysis of thermally stressed Arabidopsis thaliana meiotic recombination mutants

open access: yesBMC Genomics, 2021
Background Meiosis is a specialized cell division that underpins sexual reproduction in most eukaryotes. During meiosis, interhomolog meiotic recombination facilitates accurate chromosome segregation and generates genetic diversity by shuffling parental ...
Jiyue Huang   +3 more
doaj   +1 more source

Drosophila brca2 is required for mitotic and meiotic DNA repair and efficient activation of the meiotic recombination checkpoint.

open access: yesPLoS Genetics, 2008
Heterozygous mutations in the tumor suppressor BRCA2 confer a high risk of breast and other cancers in humans. BRCA2 maintains genome stability in part through the regulation of Rad51-dependent homologous recombination. Much about its precise function in
Martha Klovstad   +2 more
doaj   +1 more source

Shu complex SWS1-SWSAP1 promotes early steps in mouse meiotic recombination

open access: yesNature Communications, 2018
Homologous recombination ensures genome integrity during meiotic recombination. Here the authors reveal that factors SWS1 and SWSAP1 are critical for meiotic homologues recombination, particularly in promoting assembly of RAD51 and DMC1 on early ...
Carla M. Abreu   +5 more
doaj   +1 more source

The PHD finger protein Spp1 has distinct functions in the Set1 and the meiotic DSB formation complexes. [PDF]

open access: yesPLoS Genetics, 2018
Histone H3K4 methylation is a feature of meiotic recombination hotspots shared by many organisms including plants and mammals. Meiotic recombination is initiated by programmed double-strand break (DSB) formation that in budding yeast takes place in gene ...
Céline Adam   +10 more
doaj   +1 more source

Manipulation of Meiotic Recombination to Hasten Crop Improvement

open access: yesBiology, 2022
Reciprocal (cross-overs = COs) and non-reciprocal (gene conversion) DNA exchanges between the parental chromosomes (the homologs) during meiotic recombination are, together with mutation, the drivers for the evolution and adaptation of species.
Ian Fayos   +5 more
doaj   +1 more source

Initiation of Meiotic Recombination in Mammals [PDF]

open access: yesGenes, 2010
Meiotic recombination is initiated by the induction of programmed DNA double strand breaks (DSBs). DSB repair promotes homologous interactions and pairing and leads to the formation of crossovers (COs), which are required for the proper reductional segregation at the first meiotic division.
Rajeev Kumar, Bernard De Massy
openaire   +2 more sources

Expression of the bacterial recA gene impairs genetic recombination and sporulation in a Saccharomyces cerevisiae diploid strain

open access: yesGenetics and Molecular Biology, 2003
The Escherichia coli RecA protein (RecAp) has been demonstrated to induce mutagenesis in yeast cells, although there is still little information on the role of the RecAp in yeast recombination events.
Marcos Antonio de Morais Junior   +2 more
doaj   +1 more source

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