Results 1 to 10 of about 372,355 (336)
Detecting selection with a genetic cross [PDF]
Significance Natural selection is the force that underlies the spectacular adaptations of all organisms to their environments. However, not all traits are under selection; a key question is which traits have been shaped by selection, as opposed to the random drift of neutral traits.
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GENETIC RECOMBINATION IN SEXUAL CROSSES OF PHYCOMYCES [PDF]
ABSTRACT Sexual crosses between strains of Phycomyces blakesleeanus, involving three auxotrophic and one color marker and yielding a high proportion of zygospore germination, are described. Samples of 20-40 germ spores from 311 individual fertile germ sporangia originating from five two-factor and three three-factor crosses were ...
Eslava, A. P.+3 more
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Cross-border genetic testing [PDF]
As genetic testing (GT) is now available for many rare disorders, no GT laboratory can be expert enough to provide every test. Samples are therefore sent between laboratories for testing, often across borders. Such cross-border testing raises some questions: The 2003 OECD survey of 827 molecular GT laboratories in 18 countries found that 64% of ...
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GenomeMixer: a complex genetic cross simulator [PDF]
Abstract Summary: GenomeMixer is a cross-platform application that simulates meiotic recombination events for large and complex multigenerational genetic crosses among sexually reproducing diploid species and outputs simulated progeny to several standard mapping programs.
Robert W. Williams+1 more
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Genetic draft and valley crossing [PDF]
ABSTRACTLiving systems are characterized by complex adaptations which require multiple coordinated mutations in order to function. Empirical studies of fitness landscapes that result from the many possible mutations in a gene region reveal many fitness peaks and valleys that connect them.
Kessinger, Taylor, Van Cleve, Jeremy
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THE EVOLUTIONARY STABILITY OF CROSS-SEX, CROSS-TRAIT GENETIC COVARIANCES [PDF]
Although knowledge of the selective agents behind the evolution of sexual dimorphism has advanced considerably in recent years, we still lack a clear understanding of the evolutionary durability of cross-sex genetic covariances that often constrain its evolution.
Thomas P. Gosden+2 more
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The effects of disruptive and stabilizing selection on body size in Drosophila melanogaster. III. Genetic analysis of two lines with different reactions to disruptive selection with mating of opposite extremes [PDF]
A genetic analysis was made of two lines which when subjected to disruptive selection with compulsary mating of opposite extremes (D−) showed a different response viz.
Bos, M., Scharloo, W.
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Determining the extent of reproductive isolation in cryptic species with dynamic geographic ranges can yield important insights into the processes that generate and maintain genetic divergence in the absence of severe geographic barriers.
Hoke, Kim L.+3 more
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Genome Assembly Improvement and Mapping Convergently Evolved Skeletal Traits in Sticklebacks with Genotyping-by-Sequencing. [PDF]
Marine populations of the threespine stickleback (Gasterosteus aculeatus) have repeatedly colonized and rapidly adapted to freshwater habitats, providing a powerful system to map the genetic architecture of evolved traits.
Glazer, Andrew M+4 more
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Parallel developmental genetic features underlie stickleback gill raker evolution. [PDF]
BackgroundConvergent evolution, the repeated evolution of similar phenotypes in independent lineages, provides natural replicates to study mechanisms of evolution.
Cleves, Phillip A+4 more
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