Results 41 to 50 of about 492,575 (295)
Predicting the evolution of sex on complex fitness landscapes.
PLoS Computational Biology, 2009 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
Frontiers in Ecology and Evolution, 2021 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
Effective Fitness Landscapes for Evolutionary Systems
, 1999 In evolution theory the concept of a fitness landscape has played an important role, evolution itself being portrayed as a hill-climbing process on a rugged landscape.
Stephens, C. R.
core +2 more sources
Evidence for inbreeding depression in a species with limited opportunity for maternal effects [PDF]
, 2015 It is often assumed that mating with close relatives reduces offspring fitness. In such cases, reduced offspring fitness may arise from inbreeding depression (i.e., genetic effects of elevated homozygosity) or from post-mating maternal investment.
Head, Megan L. +2 more
core +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Introduction Pulmonary dysfunction and sleep abnormalities are common in children with sickle cell disease (SCD) and are associated with worse clinical outcomes. Whether spirometry abnormalities are associated with polysomnography (PSG) findings remains unclear.
Ammar Saadoon Alishlash +4 more
wiley +1 more source
Direct selection on genetic robustness revealed in the yeast transcriptome. [PDF]
PLoS ONE, 2007 Evolutionary theory predicts that organisms should evolve the ability to produce high fitness phenotypes in the face of environmental disturbances (environmental robustness) or genetic mutations (genetic robustness).
Stephen R Proulx +2 more
doaj +1 more source
Phase Diagrams of Quasispecies Theory with Recombination and Horizontal Gene Transfer
, 2006 We consider how transfer of genetic information between individuals influences the phase diagram and mean fitness of both the Eigen and the parallel, or Crow-Kimura, models of evolution.
J. Maynard +4 more
core +1 more source
Optimal phenotypic plasticity in a stochastic environment minimizes the cost/benefit ratio [PDF]
, 2012 This paper addresses the question of optimal phenotypic plasticity as a response to environmental fluctuations while optimizing the cost/benefit ratio, where the cost is energetic expense of plasticity, and benefit is fitness.
Coquillard, Patrick +2 more
core +5 more sources
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Families of children with cancer experience significant financial strain, even with universal healthcare. Indirect costs, such as productivity losses and non‐medical expenses, are rarely included in economic evaluations, and little is known about how effectively financial aid programmes alleviate this burden. Childhood brain tumours
Megumi Lim +8 more
wiley +1 more source
Population bottlenecks constrain host microbiome diversity and genetic variation impeding fitness.
PLoS Genetics, 2022 It is becoming increasingly clear that microbial symbionts influence key aspects of their host's fitness, and vice versa. This may fundamentally change our thinking about how microbes and hosts interact in influencing fitness and adaptation to changing ...
Michael Ørsted +3 more
doaj +1 more source