Results 31 to 40 of about 300,493 (300)

Genetic Programming Crossover: Does It Cross over? [PDF]

open access: yes, 2009
One justification for the use of crossover operators in Genetic Programming is that the crossover of program syntax gives rise to the crossover of information at the semantic level. In particular, a fitness-increasing crossover is presumed to act by combining fitness-contributing components of both parents.
openaire   +1 more source

Homoeologous Chromosomes From Two Hordeum Species Can Recognize and Associate During Meiosis in Wheat in the Presence of the Ph1 Locus

open access: yesFrontiers in Plant Science, 2018
Understanding the system of a basic eukaryotic cellular mechanism like meiosis is of fundamental importance in plant biology. Moreover, it is also of great strategic interest in plant breeding since unzipping the mechanism of chromosome specificity ...
María C. Calderón   +3 more
doaj   +1 more source

Genetic Gain Trend in Yield and Advanced Selection of Yayo Coffee (Coffea arabica L.) Land Race Collection

open access: yesAdvances in Agriculture, 2022
Coffea arabica L., the dominant cash crop in the world market, is native to rain forest of Ethiopia where it is believed to exist with high genetic diversity. Estimating genetic parameters are momentous in deciding breeding method to be followed for crop
Dawit Merga   +9 more
doaj   +1 more source

A Simplified Strategy for Introducing Genetic Variants into Drosophila Compound Autosome Stocks

open access: yesG3: Genes, Genomes, Genetics, 2016
Drosophila stocks bearing compound chromosomes, single molecules of DNA that carry the genomic complement of two chromosomes, are useful tools for studying meiosis and mitosis.
William D. Gilliland   +3 more
doaj   +1 more source

Inversions in the third chromosome of wild races of Drosophila pseudoobscura, and their use in the study of the history of the species [PDF]

open access: yes, 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

A cytological demonstration of "genetic" crossing-over [PDF]

open access: yesProceedings of the Royal Society of London. Series B, Containing Papers of a Biological Character, 1930
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.
openaire   +1 more source

The Correlation of Cytological and Genetical Crossing-Over in Zea Mays. A Corroboration [PDF]

open access: yesProceedings of the National Academy of Sciences, 1935
In this article, McClintock and Creighton addressed critics who felt their 1931 paper did not have enough data by corroborating their earlier findings on crossing-over.
H B, Creighton, B, McClintock
openaire   +2 more sources

Male crossing over and genetic sexing systems in the Australian sheep blowfly Lucilia cuprina [PDF]

open access: yesHeredity, 1991
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 L, Weller, G M, Clarke
openaire   +2 more sources

Linkage variation and chromosome maps [PDF]

open access: yes, 1921
A recent paper in this journal by Detlefsen(1) is introduced as follows: "There is a well intrenched concept of recent genetics that hereditary factors or genes may be given fairly definite loci on chromosome maps and that these maps correspond to or ...
Sturtevant, A. H.
core   +1 more source

Optimization of a crossing system using mate selection

open access: yesGenetics Selection Evolution, 2006
A simple model based on one single identified quantitative trait locus (QTL) in a two-way crossing system was used to demonstrate the power of mate selection algorithms as a natural means of opportunistic line development for optimization of ...
Li Yongjun   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy