Positive selection and species evolution
The evolution of bizarre structures in dinosaurs: biomechanics, sexual selection, social selection or species recognition?
... that species recognition may have been a more general force that drove the evolution of bizarre structures in ...including species identification, potential protection and social habits and the ...
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Positive selection underlies Faster-Z evolution of gene expression in birds.
... of evolution for genes on sex chromosomes compared with autosomes (Fast-X or Fast-Z evolution) can result either from positive selection in the heterogametic sex or from nonadaptive ...
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gcodeml: A Grid-enabled Tool for Detecting Positive Selection in Biological Evolution
... c Vital-IT Group, SIB Swiss Institute of Bioinformatics, Lausanne, Switzerland 1 [email protected] Abstract. One of the important questions in biological evolution is to know if certain changes along ...
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Positive Selection Drives the Evolution of the Acp29AB Accessory Gland Protein in Drosophila
... the evolution of the Acp29AB protein has been driven by directional selection at least after the split of the ...balancing selection is maintaining variation in this ...
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Recombination and Selection in the Evolution of Picornaviruses and Other Mammalian Positive-Stranded RNA Viruses
... Biological compatibility is likely to play an important role in the varied patterns of recombination observed for these gen- era. Although the degree of amino acid sequence similarity between protein regions required to ...
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Extensive Positive Selection Drives the Evolution of Nonstructural Proteins in Lineage C Betacoronaviruses
... host species. We investigated the evolution of ORF1a and ORF1b in lineage C betaCoVs and in 87 sequenced MERS-CoV ...widespread positive selection, stronger in ORF1a than in ...adaptive ...
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Evolution of the core and pan genome of Streptococcus: positive selection, recombination, and genome composition
... greater. Positive selection across the core- genome was particularly evident in the analysis of the differ- ent species within the genus Streptococcus, and it occurred disproportionately in certain ...
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Baculovirus Molecular Evolution via Gene Turnover and Recurrent Positive Selection of Key Genes
... host species. Both processes provide strong selection for viral ...adaptive evolution in insect viruses can help us to better understand adaptive evolution in general and is important due to ...
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Positive selection on the K domain of the AGAMOUS protein in the Zingiberales suggests a mechanism for the evolution of androecial morphology
... representative species. Tests of selection were carried out to investigate the role of selection on gene evolution and ...that positive selection has played a role in the evolu- ...
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Detecting positive selection in the genome
... of selection, partial sweeps may be common, because selection can bring about rapid evolu- tion by acting on standing variation at multiple loci, affect- ing levels of diversity at linked neutral sites [67, ...
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Identification of Genes under Positive Selection Reveals Differences in Evolutionary Adaptation between Brown-Algal Species
... Giant sporophytes and small gametophytes represent the heteromorphic life history stages in S. japonica. In sporophytes of S. japonica, a higher number of GUPS was more strongly expressed compared to gametophytes ...
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Positive and Negative Selection on the Human Genome
... Accepted for publication April 5, 2001 ABSTRACT The distinction between deleterious, neutral, and adaptive mutations is a fundamental problem in the study of molecular evolution. Two significant quantities are the ...
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Hitchhiking Under Positive Darwinian Selection
... by positive selection. T HE extent to which positive Darwinian selection eliminates all linked variation and a population in recov- shapes molecular evolution has been a dominant ery is ...
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Positive selection drives lactoferrin evolution in mammals
... Discussion In this study, we used a maximum-likelihood method to estimate x value among amino acid sites, the results sug- gested that the evolution of LF gene was characterized by positive ...
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Positive Selection Drives Faster-Z Evolution in Silkmoths
... Valenzuela. 2011. Are all sex chromosomes created equal? Trends Genet. 27:350–357. Baines, J. F., and B. Harr. 2007. Reduced X-linked diversity in derived populations of house mice. Genetics 175:1911–1921. Baines, J. F., ...
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Reduced purifying selection prevails over positive selection in human copy number variant evolution.
... Methods Identification of Nijmegen CNVs A 32-k tiling resolution genomic microarray consisting of 32,447 overlapping BAC clones, selected to cover the entire human ge- nome, was used to generate genomic copy number ...
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Rapid intrahost evolution of human cytomegalovirus is shaped by demography and positive selection
... rapid evolution within human hosts. To understand HCMV evolution, longitudinally sampled genomic populations from the urine and plasma of 5 infants with symptomatic congenital HCMV infection were ...and ...
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Distinguishing Positive Selection From Neutral Evolution: Boosting the Performance of Summary Statistics
... of selection and found that for recent sweeps integrated haplotype homozygosity is very informative whereas older sweeps are better detected by Tajima’s ...
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Evolution and Genetic Diversity of the Wheat Species of T. Turanicum Jakubz. and their Selection Value
... Compared to other countries, in Azerbaijan Turan wheat was mainly used for hybridization. Mustafayev İ.D. obtained Turanikum-186 through the hybridization of local Azerbaijani Turan wheat and melyanopus variety of ...
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Long intervals of stasis punctuated by bursts of positive selection in the seasonal evolution of influenza A virus
... interpandemic evolution of the influenza A virus hemagglutinin (HA) protein is commonly considered a paragon of rapid evolutionary change under positive selection in which amino acid replacements are ...
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