Exo1 protects DNA nicks from ligation to promote crossover formation during meiosis.
PLoS 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
Widespread gene conversion in centromere cores. [PDF]
PLoS 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
Meiotic recombination in Arabidopsis is catalysed by DMC1, with RAD51 playing a supporting role. [PDF]
PLoS 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
Genetic variability in soybean with resistance to cyst nematode and powdery mildew: impact of multi-parent crosses on recombination and genetic diversity [PDF]
Brazilian Journal of BiologyThe 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
A possible influence of the spindle fibre on crossing-over in Drosophila [PDF]
, 1932 The distribution of genes in the second and third chromosomes of Drosophila melanogaster suggests that crossing-over may be influenced by the spindle fibre at least in neighboring regions.
Beadle, G. W.
core +2 more sources
Inversions in the third chromosome of wild races of Drosophila pseudoobscura, and their use in the study of the history of the species [PDF]
, 1936 Genetic studies showed several years ago that the third chromosomes of wild strains of Drosophila pseudoobscura often carry suppressors of crossing-over.
Dobzhansky, Th., Sturtevant, A. H.
core +1 more source
Comparative gene mapping in Arabidopsis lyrata chromosomes 1 and 2 and the corresponding A. thaliana chromosome 1: recombination rates, rearrangements and centromere location [PDF]
, 2006 To add detail to the genetic map of Arabidopsis lyrata, and compare it with that of A. thaliana, we have developed many additional markers in the A. lyrata linkage groups, LG1 and LG2, corresponding to A. thaliana chromosome 1.
Charlesworth, D +4 more
core +1 more source
Natural genetic transformation generates a population of merodiploids in Streptococcus pneumoniae. [PDF]
PLoS 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
Assessment of the Degree of Relatedness of Some Inbred Lines Created at ARDS Turda
Agronomy, 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
Variability of cell wall polysaccharides composition and hemicellulose enzymatic profile in an apple progeny [PDF]
, 2011 The genetic variability of apple cell walls polysaccharides chemical composition and structure was assessed in a progeny of 141 individuals harvested over 2 years.
B. Quéméner +3 more
core +3 more sources