Gene duplication (or chromosomal duplication or gene amplification) is a major mechanism through which new genetic material is generated during molecular...
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Evolution by gene duplication is an event by which a gene or part of a gene can have two identical copies that can not be distinguished from each other...
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duplication of genes within the same chromosome whereas trans duplication, or interchromosomal duplication, consists of duplicating genes on neighboring...
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study of genomic parasites, gene and ancient genome duplications, polyploidy, and comparative genomics. Genome evolution is a constantly changing and...
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4.s51. PMID 8173509. Zhang J (2003). "Evolution by gene duplication: an update". Trends in Ecology & Evolution. 18 (6): 292–8. doi:10.1016/S0169-5347(03)00033-8...
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of existing genes may lead to new genes with novel functions. In 1970, Susumu Ohno published the seminal text Evolution by Gene Duplication. For some time...
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governs all life. . .everything." Gene duplication Paleopolyploidy Susumu Ohno (1970). Evolution by gene duplication. Springer-Verlag. ISBN 0-04-575015-7...
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can illustrate divergent evolution. Through gene duplication, it is possible for divergent evolution to occur between two genes within a species. Similarities...
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Paleopolyploidy (redirect from Ancient genome duplication)
gene duplication events, the following rules are often applied: Duplicated genes are located in large duplicated blocks. Single gene duplication is a...
32 KB (3,388 words) - 21:58, 23 May 2025
A gene family is a set of several similar genes, formed by duplication of a single original gene, and generally with similar biochemical functions. One...
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functional divergence, occurs when one gene copy, or paralog, takes on a totally new function after a gene duplication event. Neofunctionalization is an adaptive...
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for new genes through studies of homologues include gene duplication, exon shuffling, gene fusion and fission, etc. Studying the origins of a gene becomes...
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gene duplication. Such duplication events are responsible for many sets of paralogous genes. When an individual gene in such a set is disrupted by mutation...
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to the conclusion that Hox gene clusters evolved early in animal evolution from a single Hox gene via tandem duplication and subsequent divergence, and...
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Pseudogene (redirect from Pseudo-gene)
pseudogenes arise as superfluous copies of functional genes, either directly by gene duplication or indirectly by reverse transcription of an mRNA transcript....
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sequence into an existing gene, and gene truncation. Gene duplication initially leads to redundancy. However, duplicated gene sequences can mutate to develop...
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Sequence homology (redirect from Orthologous gene)
either a speciation event (orthologs), or a duplication event (paralogs), or else a horizontal (or lateral) gene transfer event (xenologs). Homology among...
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amplified. The duplicated segment contained the gene citT for the citrate transporter protein used in anaerobic growth on citrate. The duplication is tandem...
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Subfunctionalization (category Molecular evolution)
neutral evolution; meaning that no new adaptations are formed. During the process of gene duplication paralogs simply undergo a division of labor by retaining...
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in some cases, most traits are influenced by multiple genes in a quantitative or epistatic manner. Evolution can occur if there is genetic variation within...
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The gene-centered view of evolution, gene's eye view, gene selection theory, or selfish gene theory holds that adaptive evolution occurs through the differential...
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reinvented routine trichromacy through a relatively recent gene duplication of the M/L gene. This duplication has allowed trichromacy for both sexes; its X chromosome...
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Copy number variation (redirect from Gene copy number)
analysis Human genome Inparanoid Molecular evolution Pseudogenes Segmental duplication Tandem exon duplication Virtual karyotype McCarroll SA, Altshuler...
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into gene families. This is a very important concept in bioinformatics, and evolutionary biology in general. See evolution by gene duplication. High-throughput...
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2R hypothesis (category Molecular evolution)
as part of his larger argument for the general importance of gene duplication in evolution. Based on relative genome sizes and isozyme analysis, he suggested...
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(ectopic gene conversion) is conjectured to be responsible for concerted evolution of gene families. Conversion of one allele to the other is often due to base...
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Polyploidy (redirect from Genome duplication)
"Speciation by genome duplication: Repeated origins and genomic composition of the recently formed allopolyploid species Mimulus peregrinus". Evolution; International...
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Gene duplication occurs in a large number of organisms as part of evolution or as the cause or result of disease (as in the case of the amylase genes...
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every moment. Concerted evolution (phenomenon of duplicated genes) may often be caused by the genetic exchange known as gene conversion. This other phenomenon...
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Evolutionary tinkering (category Biological evolution)
forms of gene duplication. The product of whole-gene duplication is two copies of the gene, whereas that of diploid-type gene duplication is one gene that...
17 KB (2,076 words) - 18:51, 9 June 2025