Genetic Mapping in Escherichia coli K-12 by Radiation-Induced Crossing-Over [PDF]
Conventional methods for chromosomal mapping in Escherichia coli are (i) interruption of matings to obtain minimum marker entry times, (ii) linkage analysis of recombinants, and (iii) cotransduction. Method (i) has a resolution of about 0.5 min (5 × 10 4 nucleotides) and is not useful for ...
M. Wann, S. K. Mahajan, T. H. Wood
semanticscholar +4 more sources
Male crossing over and genetic sexing systems in the Australian sheep blowfly Lucilia cuprina [PDF]
Field-female killing (FK) systems based on deleterious mutations and Y-autosome translocations are being evaluated for genetic control of the Australian sheep blowfly, Lucilia cuprina. Experience during field trials has shown that mass-reared colonies of FK strains are subject to genetic deterioration, caused mainly by genetic recombination in males. A
G. G. Foster, G. Weller, G. M. Clarke
semanticscholar +4 more sources
GenomeFingerprinter: the genome fingerprint and the universal genome fingerprint analysis for systematic comparative genomics. [PDF]
BackgroundNo attention has been paid on comparing a set of genome sequences crossing genetic components and biological categories with far divergence over large size range.
Yuncan Ai+3 more
doaj +5 more sources
Genetic rearrangement of DNA induces knots with a unique topology: implications for the mechanism of synapsis and crossing-over. [PDF]
We have determined the topological sign of the knots produced by a cycle of phage lambda integrative recombination. To insure that these knots reflect intrinsic features of the reaction mechanism, the substrate was constructed so that random ...
J. Griffith, H. Nash
semanticscholar +4 more sources
Crossing over in chicken oogenesis: cytological and chiasma-based genetic maps of the chicken lampbrush chromosome 1. [PDF]
Chiasmata in diplotene bivalents are located at the points of physical exchange (crossing-over) between homologous chromosomes. We have studied chiasma distribution within chicken lampbrush chromosome 1 to estimate the crossing-over frequency between ...
Alexander V. Rodionov+4 more
semanticscholar +4 more sources
. The Use of Mitotic Crossing-over for Genetic Analysis in Dictyostelium discoideum : Mapping of Linkage Group II [PDF]
SUMMARY: Mitotic mapping in the cellular slime mould Dictyostelium discoideum was investigated by analysing the gene order and map distances of four genetic markers on linkage group II: whi, acrA, tsgD (previously reported) and a new spore shape marker ...
D. Mosses, K. Williams, P. Newell
semanticscholar +3 more sources
Genetic Variation in a Crossing Population of Camellia oleifera Based on ddRAD Sequencing and Analysis of Association with Fruit Traits [PDF]
Tea oil is an important high-quality edible oil derived from woody plants. Camellia oleifera is the largest and most widely planted oil-producing plant in the Camellia genus in China, and its seeds are the most important source for obtaining tea oil.
Lexin Zhou+9 more
doaj +2 more sources
Genetic variation in recombination in Drosophila. III. Regional effects on crossing over and effects on non-disjunction [PDF]
Multiply marked X, 2nd and 3rd chromosomes were used to study the patterns of regional specificity of effects on crossing over of chromosomes from a stock of D. melanogaster selected for high Gl-Sb recombination. It was found that the HX chromosome increased crossover frequencies more or less uniformly throughout chromosome 3, and did not significantly
B. Charlesworth+2 more
semanticscholar +2 more sources
A method is now available for synchronizing the division of populations of cells of the smut fungus Ustilago maydis . In two experiments carried out with a diploid strain heterozygous for several biochemical markers, samples of cells were removed at ...
R. Holliday
semanticscholar +4 more sources
Variability of PRDM9 in buffaloes [PDF]
The buffalo population raised in Brazil tend to show loss of genetic variability over generations, with significant estimates of inbreeding depression.
Luca Godoi Rocha Santana+6 more
doaj +2 more sources