Results 11 to 20 of about 300,493 (300)

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

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   +3 more sources

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
D R, STADLER, A M, TOWE
openaire   +2 more sources

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

An Ultra-High-Density, Transcript-Based, Genetic Map of Lettuce. [PDF]

open access: yes, 2013
We have generated an ultra-high-density genetic map for lettuce, an economically important member of the Compositae, consisting of 12,842 unigenes (13,943 markers) mapped in 3696 genetic bins distributed over nine chromosomal linkage groups.
Ashrafi, Hamid   +10 more
core   +1 more source

Variability of cell wall polysaccharides composition and hemicellulose enzymatic profile in an apple progeny [PDF]

open access: yes, 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

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

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   +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]

open access: yes, 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]

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

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

Redundancy and compensation in axon guidance: genetic analysis of the Drosophila Ptp10D/Ptp4E receptor tyrosine phosphatase subfamily [PDF]

open access: yes, 2008
Background: Drosophila has six receptor protein tyrosine phosphatases (RPTPs), five of which are expressed primarily in neurons. Mutations in all five affect axon guidance, either alone or in combination.
Bahri, Sami   +3 more
core   +4 more sources

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