Results 21 to 30 of about 318,177 (248)

Gene duplicability of core genes is highly consistent across all angiosperms [PDF]

open access: yes, 2016
Gene duplication is an important mechanism for adding to genomic novelty. Hence, which genes undergo duplication and are preserved following duplication is an important question. It has been observed that gene duplicability, or the ability of genes to be
De Smet, Riet   +5 more
core   +4 more sources

The Role of Retrotransposons in Gene Family Expansions: Insights from the Mouse \u3ci\u3eAbp\u3c/i\u3e Gene Family [PDF]

open access: yes, 2013
Background: Retrotransposons have been suggested to provide a substrate for non-allelic homologous recombination (NAHR) and thereby promote gene family expansion. Their precise role, however, is controversial.
Janoušek, Václav   +2 more
core   +2 more sources

Selection in the evolution of gene duplications [PDF]

open access: yesGenome Biology, 2002
Gene duplications have a major role in the evolution of new biological functions. Theoretical studies often assume that a duplication per se is selectively neutral and that, following a duplication, one of the gene copies is freed from purifying (stabilizing) selection, which creates the potential for evolution of a new function.In search of systematic
Fyodor A. Kondrashov   +3 more
openaire   +3 more sources

Profiling of gene duplication patterns of sequenced teleost genomes: evidence for rapid lineage-specific genome expansion mediated by recent tandem duplications

open access: yesBMC Genomics, 2012
Background Gene duplication has had a major impact on genome evolution. Localized (or tandem) duplication resulting from unequal crossing over and whole genome duplication are believed to be the two dominant mechanisms contributing to vertebrate genome ...
Lu Jianguo   +4 more
doaj   +1 more source

Horizontal transfer, not duplication, drives the expansion of protein families in prokaryotes. [PDF]

open access: yesPLoS Genetics, 2011
Gene duplication followed by neo- or sub-functionalization deeply impacts the evolution of protein families and is regarded as the main source of adaptive functional novelty in eukaryotes.
Todd J Treangen, Eduardo P C Rocha
doaj   +1 more source

Gene duplication in an African cichlid adaptive radiation [PDF]

open access: yes, 2014
Background Gene duplication is a source of evolutionary innovation and can contribute to the divergence of lineages; however, the relative importance of this process remains to be determined.
Joyce, Domino A   +12 more
core   +2 more sources

Gene duplication and evolution in recurring polyploidization–diploidization cycles in plants

open access: yesGenome Biology, 2019
Background The sharp increase of plant genome and transcriptome data provide valuable resources to investigate evolutionary consequences of gene duplication in a range of taxa, and unravel common principles underlying duplicate gene retention. Results We
Xin Qiao   +7 more
doaj   +1 more source

Magnetosome Gene Duplication as an Important Driver in the Evolution of Magnetotaxis in the Alphaproteobacteria [PDF]

open access: yes, 2019
The evolution of microbial magnetoreception (or magnetotaxis) is of great interest in the fields of microbiology, evolutionary biology, biophysics, geomicrobiology, and geochemistry.
Bazylinski, Dennis A.   +9 more
core   +3 more sources

Mechanisms of Gene Duplication and Amplification [PDF]

open access: yesCold Spring Harbor Perspectives in Biology, 2015
Changes in gene copy number are among the most frequent mutational events in all genomes and were among the mutations for which a physical basis was first known. Yet mechanisms of gene duplication remain uncertain because formation rates are difficult to measure and mechanisms may vary with position in a genome.
Reams, Andrew B, Roth, John R
openaire   +4 more sources

Copy-number changes in evolution: rates, fitness effects and adaptive significance

open access: yesFrontiers in Genetics, 2013
Gene copy-number differences due to gene duplications and deletions are rampant in natural populations and play a crucial role in the evolution of genome complexity.
Vaishali eKatju, Ulfar eBergthorsson
doaj   +1 more source

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