Results 41 to 50 of about 1,842,885 (305)
Characterization of the BspA and Pmp protein family of trichomonads
Background Trichomonas vaginalis is a human-infecting trichomonad and as such the best studied and the only for which the full genome sequence is available considering its parasitic lifestyle, T.
Maria R. Handrich+4 more
doaj +1 more source
Fecundity determines the outcome of founding queen associations in ants
Animal cooperation evolved because of its benefits to the cooperators. Pleometrosis in ants—the cooperation of queens to found a colony—benefits colony growth, but also incurs costs for some of the cooperators because only one queen usually survives the ...
Eva-Maria Teggers+2 more
doaj +1 more source
A rate-distortion scenario for the emergence and evolution of noisy molecular codes [PDF]
We discuss, in terms of rate-distortion theory, the fitness of molecular codes as the problem of designing an optimal information channel. The fitness is governed by an interplay between the cost and quality of the channel, which induces smoothness in the code.
arxiv +1 more source
Adaptive evolution of molecular phenotypes
Molecular phenotypes link genomic information with organismic functions, fitness, and evolution. Quantitative traits are complex phenotypes that depend on multiple genomic loci. In this paper, we study the adaptive evolution of a quantitative trait under
Armita Nourmohammad+13 more
core +1 more source
Molecular evolution of olfactomedin [PDF]
Olfactomedin is a secreted polymeric glycoprotein of unknown function, originally discovered at the mucociliary surface of the amphibian olfactory neuroepithelium and subsequently found throughout the mammalian brain. As a first step toward elucidating the function of olfactomedin, its phylogenetic history was examined to identify conserved structural ...
Robert R. H. Anholt+1 more
openaire +3 more sources
The Jackprot Simulation Couples Mutation Rate with Natural Selection to Illustrate How Protein Evolution Is Not Random [PDF]
Protein evolution is not a random process. Views which attribute randomness to molecular change, deleterious nature to single-gene mutations, insufficient geological time, or population size for molecular improvements to occur, or invoke “design ...
Bai, Chunyan Y.+2 more
core +2 more sources
Background Zika, dengue, and chikungunya are three mosquito-borne viruses having overlapping transmission vectors. They cause diseases having similar symptoms in human patients, but requiring different immediate management steps.
Ozlem Yaren+8 more
doaj +1 more source
Kiefer et al. sequence the metagenome of the sawtoothed grain beetle and demonstrate how its symbiont mechanistically helps the host by providing tyrosine. Providing this amino acid in the pupal stage and early adulthood supports cuticle biosynthesis and
Julian Simon Thilo Kiefer+8 more
doaj +1 more source
Background With the expansion of animal production, parasitic helminths are gaining increasing economic importance. However, application of several established deworming agents can harm treated hosts and environment due to their low specificity ...
Hanno Schmidt+9 more
doaj +1 more source
Molecular Evolution in Time Dependent Environments
The quasispecies theory is studied for dynamic replication landscapes. A meaningful asymptotic quasispecies is defined for periodic time dependencies. The quasispecies' composition is constantly changing over the oscillation period.
A. Sasaki+15 more
core +4 more sources