Contribution of crossing over to genetic variance in maize and wheat populations [PDF]
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
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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
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A cytological demonstration of "genetic" crossing-over [PDF]
A stage in meiosis where the paired chromosomes form loops, coming together at points distributed at random along their length, was first described by Rückert (1892) inPristiurus. These points we now recognise in suitable material as exchanges of partner amongst the four pairing half-chromosomes.
C. D. Darlington
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Evidence from Aeromonas for Genetic Crossing-Over in Ribosomal Sequences [PDF]
In a recent issue of the International Journal of Systematic Bacteriology, Martinez-Murcia and colleagues (8) report complete 16s rRNA sequences from Aeromonas, each consisting of 1,502 bp which offer no problems of homology.
P. Sneath
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DNA double-strand break repair: genetic determinants of flanking crossing-over. [PDF]
Whether or not homologous interaction of two DNA molecules results in crossing-over of the flanking sequences is an important decision in view of genome organization. Several homologous recombination models, including the double-strand break repair models, explain this decision as choice between two alternative modes of resolution of Holliday-type ...
Yukari Sunohara+4 more
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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
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Wolbachia causes cytoplasmic incompatibility (CI) between mosquitoes infected with different strains, but the genetic basis of observed CI diversity is unknown. Here, Bonneau et al.
Manon Bonneau+6 more
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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
Gaye L. Weller+2 more
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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 ...
S. K. Mahajan, Thomas H. Wood, M. Wann
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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 interwrapping of segments of DNA played a minimal role in the topological outcome.
H A Nash, J D Griffith
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