Results 1 to 10 of about 9,021,030 (297)

Dynamics of Positive Frequency Dependent Selection Triggers Selection for Silence

Complexity, 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

Positive selection on human gamete-recognition genes [PDF]

PeerJ, 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, Daryn A. Stover, Vanessa Guerra, Sahar V. Mozaffari, Carole Ober, Carina F. Mugal, Ingemar Kaj   +6 more
doaj   +2 more sources

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

Toxins, 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, T. Jeffrey Cole, Michael S. Brewer   +2 more
doaj   +1 more source

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

BMC 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, Xin Qi, Yu Chen, Liang Wang, Xueze Lv, Weifang Yang, Jianwei Zhang, Kaiyang Li, Zhonghua Ning, Zhihua Jiang, Lujiang Qu   +10 more
doaj   +1 more source

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

mBio, 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, Luchang Zhu, Layne Pruitt, Randall J. Olsen, Ahmad Faili, Samer Kayal, James M. Musser   +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

Molecular 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, Sylvie Souche, Carole Caranta, Mireille Jacquemond, Joël Chadœuf, Alain Palloix, Benoît Moury   +6 more
doaj   +1 more source

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

Frontiers 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

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

Genetics 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, Marícia Fantinel D’Ávila, Rebeca Zanini, Maríndia Deprá, Vera Lúcia da Silva Valente   +4 more
doaj   +1 more source

Host Adaptive Evolution of Avian-Origin H3N2 Canine Influenza Virus

Frontiers in Microbiology, 2021
Since its first isolation in around 2007, the avian-origin H3N2 canine influenza virus (CIV) has become established and continues to circulate in dog populations.
Fucheng Guo, Fucheng Guo, Ayan Roy, Ruichen Wang, Jinjin Yang, Zhipeng Zhang, Wen Luo, Xuejuan Shen, Xuejuan Shen, Rui-Ai Chen, Rui-Ai Chen, David M. Irwin, David M. Irwin, Yongyi Shen, Yongyi Shen, Yongyi Shen, Yongyi Shen   +16 more
doaj   +1 more source

A survey of methods and tools to detect recent and strong positive selection

Journal of Biological Research - Thessaloniki, 2017
Positive selection occurs when an allele is favored by natural selection. The frequency of the favored allele increases in the population and due to genetic hitchhiking the neighboring linked variation diminishes, creating so-called selective sweeps ...
Pavlos Pavlidis, Nikolaos Alachiotis
doaj   +1 more source