Positive selection
Change of positive selection pressure on HIV-1 envelope gene inferred by early and recent samples.
... under positive selection by the BEB (Bayes Empirical Bayes) approach under the branch-site model at the P = 95% level are listed in Table ...under positive selection within one of the epitopes ...
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Positive selection drives the evolution of rhino, a member of the heterochromatin protein 1 family in Drosophila.
... under positive selection using multiple criteria, including dN/dS ratios, McDonald-Kreit- man, and PAML analyses ...this positive selection of such an important HP1 ...
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Positive selection of Iris, a retroviral envelope-derived host gene in Drosophila melanogaster.
... to positive selection throughout its evolution in ...of positive selection on a domesticated retroviral env gene suggests that it is an active participant in an extant genetic conflict in its ...
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Duplicated paralogous genes subject to positive selection in the genome of Trypanosoma brucei.
... of selection (M8a) all 23 CPGs including the procyclin CPG showed significant evidence of positive selection at ...of positive selection (23/40, ...
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Evolution of genes involved in gamete interaction: evidence for positive selection, duplications and losses in vertebrates.
... under positive selection [3,4], suggesting a role of positive Darwinian selection on sperm-egg ...neither positive selection, nor gene copies or ...under positive ...
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Whole-gene positive selection, elevated synonymous substitution rates, duplication, and indel evolution of the chloroplast clpP1 gene.
... purifying selection acting on the genes. Positive selection is expected to speed up non-synonymous substitution rates, whereas synonymous rates are expected to be ...recently, positive ...
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Positive selection results in frequent reversible amino acid replacements in the G protein gene of human respiratory syncytial virus.
... that there may be indeed structural restrictions to changes in the G protein, although this will need to be investigated further. Finally, positively selected sites located in the 20 amino acid duplicated region of the ...
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Extreme population differences in the human zinc transporter ZIP4 (SLC39A4) are explained by positive selection in Sub-Saharan Africa.
... of positive selection, can be explained by directional selection accompanied by the effects of a recombination hotspot near the polymorphic adaptive ...
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Detecting Loci under Recent Positive Selection in Dairy and Beef Cattle by Combining Different Genome-Wide Scan Methods
... of positive selection, a regional plot of P-values for each of the individual tests for the CNIH3 region in BSW (candidate for being selected) and NEL (candidate for being neutral) was provided in Figure ...
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Red Queen Processes Drive Positive Selection on Major Histocompatibility Complex (MHC) Genes.
... balancing selection, which is also thought to maintain the high polymorphism of MHC genes, and to cause the sharing of allelic lineages between ...this selection remains ...both positive ...
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Positive selection, molecular recombination structure and phylogenetic reconstruction of members of the family Tombusviridae: Implication in virus taxonomy
... of positive selection in 17 accession pairs in- volving 15 different ...tive selection between which synergism might be occur- ...natural selection may have played a major role in Darwinian ...
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A map of recent positive selection in the human genome.
... recent positive selection provides information about the adaptation of modern humans to local ...recent positive selection in favor of variants that have not yet reached ...recent ...
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Positive selection of natural poly-reactive B cells in the periphery occurs independent of heavy chain allelic inclusion.
... negative selection before maturing into poly-reactive antibody secreting B ...of positive selection, depending on BCR sig- nal strength [43], as reported previously ...
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Evidence for Positive Selection within the PgiC1 Locus in the Grass Festuca ovina.
... detect positive selection using phylogeny-based ω-ratio tests [57], ...the selection model (M2a/M8) adds one more site class with ω > ...the selection model better fitted the data in each ...
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Nourseothricin N-acetyl transferase: a positive selection marker for mammalian cells.
... Encouraged by this observation, we generated a Tetracycline inducible retroviral plasmid harboring the humanized sequence of NAT (pRXTN; Fig. S1). DNA fragments encoding a 36 kDa (HA- p36) or 100 kDa (HA-p100) protein ...
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Genetic variability of hepatitis C virus before and after combined therapy of interferon plus ribavirin.
... We next analyzed whether these changes in amino acid composition resulted from positive selection acting at the codon level or whether they could be explained by other factors. In 20 of the 22 patients the ...
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O-antigen protects gram-negative bacteria from histone killing.
... the selection process by quantifying the number of colony forming units (CFU) and by isolating clones to identify their plasmid inserts before and after each histone ...the selection we ran two ...histone ...
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Thermal adaptation and clinal mitochondrial DNA variation of European anchovy
... Cytb positive selection where the rate of non-synonymous substitution (dN) is greater than the rate of synonymous substitution ...for selection inference to our data: single likelihood ancestor ...
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Cell-extrinsic defective lymphocyte development in Lmna(-/-) mice.
... the positive selection of developing thymocytes as rearranged TCRa and TCRb gene products are tested for useful and safe TCR interactions with self- MHC:peptide ...
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Bioinformatics analysis of the structural and evolutionary characteristics for toll-like receptor 15
... In this study, we identified 57 completed TLR15 genes from a large number of avian and reptilian genomes. TLR15 is phylogenetically closely related to family 1. Unlike the TLRs in family 1 with the broken asparagine ...
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