Results 41 to 50 of about 213,884 (312)
Adaptation to contrasting environments occurs when advantageous alleles accumulate in each population, but it remains largely unknown whether these same advantageous alleles create genetic incompatibilities that can cause intrinsic reproductive isolation
Greg M. Walter +5 more
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Inferring genetic interactions from comparative fitness data
Darwinian fitness is a central concept in evolutionary biology. In practice, however, it is hardly possible to measure fitness for all genotypes in a natural population.
Kristina Crona +3 more
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Under environmental stress, previously hidden additive genetic variation can be unmasked and exposed to selection. The amount of hidden variation is expected to be higher for life history traits, which strongly correlate to individual fitness, than for ...
Marie‐Pierre Chapuis +7 more
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CFIT: a genetic algorithm for survival of the fitting [PDF]
Abstract CFIT is discussed: an application program of a genetic algorithm dedicated to spectral curve fitting. CFIT's practical utility resides in several attractive properties of genetic algorithms that other techniques traditionally used for curve fitting apparently lack, inter alia robustness. Thus far, the results are promising.
Lucasius, C.B. +3 more
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Fitness and its role in evolutionary genetics [PDF]
Although the operation of natural selection requires that genotypes differ in fitness, some geneticists may find it easier to understand natural selection than fitness. Partly this reflects the fact that the word 'fitness' has been used to mean subtly different things.
openaire +2 more sources
Sex differences in morphology, physiology, development, and behavior are widespread, yet the sexes inherit nearly identical genomes, causing most traits to exhibit strong and positive cross‐sex genetic correlations.
Tim Connallon, Genevieve Matthews
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Simple Genetic Algorithms with Linear Fitness
A general form of stochastic search is described (random heuristic search), and some of its general properties are proved. This provides a framework in which the simple genetic algorithm (SGA) is a special case. The framework is used to illuminate relationships between seemingly different probabilistic perspectives of SGA behavior.
Michael D. Vose, Alden H. Wright
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Predicting the evolution of sex on complex fitness landscapes.
Most population genetic theories on the evolution of sex or recombination are based on fairly restrictive assumptions about the nature of the underlying fitness landscapes.
Dusan Misevic +2 more
doaj +1 more source
Sex Reversal and Performance in Fitness-Related Traits During Early Life in Agile Frogs
Sex reversal is a mismatch between genetic sex (sex chromosomes) and phenotypic sex (reproductive organs and secondary sexual traits). It can be induced in various ectothermic vertebrates by environmental perturbations, such as extreme temperatures or ...
Veronika Bókony +10 more
doaj +1 more source
ABSTRACT Background Wilms tumor (WT) treatment imposes a significant time burden on patients and their families. Time toxicity is a patient‐centered metric that quantifies the burden of healthcare interaction. We sought to define time toxicity in the first year after diagnosis of WT and hypothesized that it would increase as tumor stage and treatment ...
Caleb Q. Ashbrook +6 more
wiley +1 more source

