Results 21 to 30 of about 801,183 (312)

Exo1 protects DNA nicks from ligation to promote crossover formation during meiosis.

open access: yesPLoS Biology, 2023
In most sexually reproducing organisms crossing over between chromosome homologs during meiosis is essential to produce haploid gametes. Most crossovers that form in meiosis in budding yeast result from the biased resolution of double Holliday junction ...
Michael Gioia   +14 more
doaj   +1 more source

Senataxin plays an essential role with DNA damage response proteins in meiotic recombination and gene silencing. [PDF]

open access: yesPLoS Genetics, 2013
Senataxin, mutated in the human genetic disorder ataxia with oculomotor apraxia type 2 (AOA2), plays an important role in maintaining genome integrity by coordination of transcription, DNA replication, and the DNA damage response.
Olivier J Becherel   +12 more
doaj   +1 more source

GENETIC FACTORS INFLUENCING CROSSING-OVER FREQUENCY IN NEUROSPORA [PDF]

open access: yesGenetics, 1962
DIFFERENT crosses involving the same marked region in Neurospora crassa may yield markedly different frequencies of recombinants. It has been suggested that the fluctuations in recombination frequency result from inherent differences between the various wild-type strains from which the stocks descended (BARRATT 1954; FROST 1961). However, the nature of
David R. Stadler, Agnes M. Towe
openaire   +3 more sources

Widespread gene conversion in centromere cores. [PDF]

open access: yesPLoS Biology, 2010
Centromeres are the most dynamic regions of the genome, yet they are typified by little or no crossing over, making it difficult to explain the origin of this diversity.
Jinghua Shi   +5 more
doaj   +1 more source

Modified Genetic Algorithm for Feature Selection and Hyper Parameter Optimization: Case of XGBoost in Spam Prediction [PDF]

open access: yesIEEE Access, 2022, vol. 10, pp. 84365-84383, 2023
Recently, spam on online social networks has attracted attention in the research and business world. Twitter has become the preferred medium to spread spam content. Many research efforts attempted to encounter social networks spam. Twitter brought extra challenges represented by the feature space size, and imbalanced data distributions.
arxiv   +1 more source

Meiotic recombination in Arabidopsis is catalysed by DMC1, with RAD51 playing a supporting role. [PDF]

open access: yesPLoS Genetics, 2013
Recombination establishes the chiasmata that physically link pairs of homologous chromosomes in meiosis, ensuring their balanced segregation at the first meiotic division and generating genetic variation.
Olivier Da Ines   +5 more
doaj   +1 more source

Assessment of the Degree of Relatedness of Some Inbred Lines Created at ARDS Turda

open access: yesAgronomy, 2023
Knowledge of relatedness among maize elite breeding genotypes is useful in planning crosses for hybrid and inbred line improvement and assigning them into heterotic groups.
Andrei Varga   +5 more
doaj   +1 more source

Natural genetic transformation generates a population of merodiploids in Streptococcus pneumoniae. [PDF]

open access: yesPLoS Genetics, 2013
Partial duplication of genetic material is prevalent in eukaryotes and provides potential for evolution of new traits. Prokaryotes, which are generally haploid in nature, can evolve new genes by partial chromosome duplication, known as merodiploidy ...
Calum Johnston   +9 more
doaj   +1 more source

Genetic variability in soybean with resistance to cyst nematode and powdery mildew: impact of multi-parent crosses on recombination and genetic diversity [PDF]

open access: yesBrazilian Journal of Biology
The objective of this study was to analyze the genetic variability generated from two-way, four-way, and eight-way hybridizations in soybean, derived from parental lines contrasting in resistance to cyst nematode and powdery mildew.
F. R. S. Muniz   +6 more
doaj   +1 more source

Control of meiotic crossing over in plant breeding

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   +1 more source

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