Results 1 to 10 of about 5,230,574 (296)

Being positive about selection. [PDF]

open access: yesPLoS Biology, 2006
Detecting positive selection at the molecular level has recently become easier and editors of PLoS Biology face the challenge of identifying standards of excellence in the face of burgeoning interest in this field.
Catriona MacCallum, Emma Hill
doaj   +3 more sources

Positive selection on human gamete-recognition genes [PDF]

open access: yesPeerJ, 2018
Coevolution of genes that encode interacting proteins expressed on the surfaces of sperm and eggs can lead to variation in reproductive compatibility between mates and reproductive isolation between members of different species.
Michael W. Hart   +6 more
doaj   +2 more sources

Dynamics of Positive Frequency Dependent Selection Triggers Selection for Silence

open access: yesComplexity, 2022
Positive frequency dependent selection is a natural selection regime where the fitness of a phenotype increases with its frequency in the population. Examples can be typically found in the spread of disease tolerance strategies in a population.
I. Hashem, V. De Buck, J. Van Impe
doaj   +1 more source

Pick Your Poison: Molecular Evolution of Venom Proteins in Asilidae (Insecta: Diptera)

open access: yesToxins, 2020
Robber flies are an understudied family of venomous, predatory Diptera. With the recent characterization of venom from three asilid species, it is possible, for the first time, to study the molecular evolution of venom genes in this unique lineage.
Chris M. Cohen   +2 more
doaj   +1 more source

Positive selection of skeleton-related genes during duck domestication revealed by whole genome sequencing

open access: yesBMC Ecology and Evolution, 2021
Background Domestication alters several phenotypic, neurological, and physiological traits in domestic animals compared to those in their wild ancestors. Domestic ducks originated from mallards, and some studies have shown that spot-billed ducks may have
Tao Zhu   +10 more
doaj   +1 more source

Integrative Reverse Genetic Analysis Identifies Polymorphisms Contributing to Decreased Antimicrobial Agent Susceptibility in Streptococcus pyogenes

open access: yesmBio, 2022
Identification of genetic polymorphisms causing increased antibiotic resistance in bacterial pathogens traditionally has proceeded from observed phenotype to defined mutant genotype.
Stephen B. Beres   +6 more
doaj   +1 more source

Different Mutations in the Genome-Linked Protein VPg of Potato virus Y Confer Virulence on the pvr23 Resistance in Pepper

open access: yesMolecular Plant-Microbe Interactions, 2006
Five different amino acid substitutions in the VPg of Potato virus Y were shown to be independently responsible for virulence toward pvr23 resistance gene of pepper.
Valérie Ayme   +6 more
doaj   +1 more source

Convergence Analysis of Rust Fungi and Anther Smuts Reveals Their Common Molecular Adaptation to a Phytoparasitic Lifestyle

open access: yesFrontiers in Genetics, 2022
Convergent evolution between distantly related taxa often mirrors adaptation to similar environments. Rust fungi and anther smuts, which belong to different classes in Pucciniomycotina, have independently evolved a phytoparasitic lifestyle, representing ...
Xianzhen Zhou, Dan Yu, Zhimin Cao
doaj   +1 more source

ZRT1 harbors an excess of nonsynonymous polymorphism and shows evidence of balancing selection in Saccharomyces cerevisiae [PDF]

open access: yes, 2012
Estimates of the fraction of nucleotide substitutions driven by positive selection vary widely across different species. Accounting for different estimates of positive selection has been difficult, in part because selection on polymorphism within a ...
Engle, Elizabeth K., Fay, Justin C.
core   +3 more sources

Evolution of DNMT2 in drosophilids: Evidence for positive and purifying selection and insights into new protein (pathways) interactions

open access: yesGenetics and Molecular Biology, 2018
The DNA methyltransferase 2 (DNMT2) protein is the most conserved member of the DNA methyltransferase family. Nevertheless, its substrate specificity is still controversial and elusive.
Gilberto Cavalheiro Vieira   +4 more
doaj   +1 more source

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