Results 21 to 30 of about 186,500 (263)
Evolution Letters, 2021 Ongoing adaptive evolution, and resulting “evolutionary rescue” of declining populations, requires additive genetic variation in fitness. Such variation can be increased by gene flow resulting from immigration, potentially facilitating evolution.
Jane M. Reid +6 more
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Selection in males purges the mutation load on female fitness
Evolution Letters, 2021 Theory predicts that the ability of selection and recombination to purge mutation load is enhanced if selection against deleterious genetic variants operates more strongly in males than females. However, direct empirical support for this tenet is limited,
Karl Grieshop +3 more
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Rare-event sampling analysis uncovers the fitness landscape of the genetic code.
PLoS Computational Biology, 2023 The genetic code refers to a rule that maps 64 codons to 20 amino acids. Nearly all organisms, with few exceptions, share the same genetic code, the standard genetic code (SGC).
Yuji Omachi, Nen Saito, Chikara Furusawa
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PLoS Genetics, 2019 Characterizing the fitness landscape, a representation of fitness for a large set of genotypes, is key to understanding how genetic information is interpreted to create functional organisms.
Victoria O Pokusaeva +13 more
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Evolution Letters, 2020 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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Genetics of somatotype and physical fitness in children and adolescents [PDF]
American Journal of Human Biology, 2020 AbstractObjectivesTo analyze the influence of genetic and environmental factors on the variation in somatotype, physical fitness, and their mutual associations.MethodsTwins from 214 pairs (87 monozygotic) of the Autonomous Region of Madeira, Portugal, from 3 to 18 years of age (51% girls) were assessed in anthropometry and physical fitness tests.
Silventoinen, Karri +9 more
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Inferring genetic interactions from comparative fitness data
eLife, 2017 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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CFIT: a genetic algorithm for survival of the fitting [PDF]
Chemometrics and Intelligent Laboratory Systems, 1993 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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Ecology and Evolution, 2021 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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Fitness and its role in evolutionary genetics [PDF]
Nature Reviews Genetics, 2009 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.
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