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Control of meiotic crossing over in plant breeding [PDF]

open access: yesВавиловский журнал генетики и селекции, 2023
Meiotic crossing over is the main mechanism for constructing a new allelic composition of individual chromosomes and is necessary for the proper distribution of homologous chromosomes between gametes.
S. R. Strelnikova, R. A. Komakhin
doaj   +2 more sources

DNA polymerase theta suppresses mitotic crossing over. [PDF]

open access: yesPLoS Genetics, 2021
Polymerase theta-mediated end joining (TMEJ) is a chromosome break repair pathway that is able to rescue the lethality associated with the loss of proteins involved in early steps in homologous recombination (e.g., BRCA1/2). This is due to the ability of
Juan Carvajal-Garcia   +3 more
doaj   +2 more sources

Positive Selection and Functional Divergence at Meiosis Genes That Mediate Crossing Over Across the Drosophila Phylogeny [PDF]

open access: yesG3: Genes, Genomes, Genetics, 2019
Meiotic crossing over ensures proper segregation of homologous chromosomes and generates genotypic diversity. Despite these functions, little is known about the genetic factors and population genetic forces involved in the evolution of recombination rate
Cara L. Brand   +2 more
doaj   +2 more sources

Sex without crossing over in the yeast Saccharomycodes ludwigii [PDF]

open access: yesGenome Biology, 2021
Background Intermixing of genomes through meiotic reassortment and recombination of homologous chromosomes is a unifying theme of sexual reproduction in eukaryotic organisms and is considered crucial for their adaptive evolution.
Ioannis A. Papaioannou   +8 more
doaj   +2 more sources

Contribution of crossing over to genetic variance in maize and wheat populations [PDF]

open access: yesThe Plant Genome
Crossing over breaks linkages and leads to a wider array of allele combinations. My objective was to assess the contribution of crossing over to genetic variance (VG) in maize (Zea mays L.) and wheat (Triticum aestivum L.).
Rex Bernardo
doaj   +2 more sources

Human Cell Assays for Synthesis-Dependent Strand Annealing and Crossing over During Double-Strand Break Repair [PDF]

open access: yesG3: Genes, Genomes, Genetics, 2017
DNA double-strand breaks (DSBs) are one of the most deleterious types of lesions to the genome. Synthesis-dependent strand annealing (SDSA) is thought to be a major pathway of DSB repair, but direct tests of this model have only been conducted in budding
Grzegorz Zapotoczny, Jeff Sekelsky
doaj   +2 more sources

Crossing over...Markov meets Mendel. [PDF]

open access: yesPLoS Computational Biology, 2012
Chromosomal crossover is a biological mechanism to combine parental traits. It is perhaps the first mechanism ever taught in any introductory biology class.
Saad Mneimneh
doaj   +2 more sources

Genetic Background, Maternal Age, and Interaction Effects Mediate Rates of Crossing Over in Drosophila melanogaster Females [PDF]

open access: yesG3: Genes, Genomes, Genetics, 2016
Meiotic recombination is a genetic process that is critical for proper chromosome segregation in many organisms. Despite being fundamental for organismal fitness, rates of crossing over vary greatly between taxa.
Chad M. Hunter   +3 more
doaj   +2 more sources

A BIRD´S-EYE VIEW OF CHROMOSOMES DURING MEIOTIC PROPHASE I [PDF]

open access: yesBAG. Journal of Basic and Applied Genetics, 2022
The present review aims to summarize the research carried out in relation to meiosis in birds, especially by observing the protein axes of the chromosomes in prophase I of meiosis. This line of research, initially developed in Argentina, has provided key
Pigozzi M.I.
doaj   +1 more source

SUMO is a pervasive regulator of meiosis

open access: yeseLife, 2021
Protein modification by SUMO helps orchestrate the elaborate events of meiosis to faithfully produce haploid gametes. To date, only a handful of meiotic SUMO targets have been identified.
Nikhil R Bhagwat   +12 more
doaj   +1 more source

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