How selfish is DNA?
@article{Cavaliersmith1980HowSI, title={How selfish is DNA?}, author={T Cavalier-smith}, journal={Nature}, year={1980}, volume={285}, pages={617-618} }
In the 17 April issue, Doolittle and Sapienza and Orgel and Crick separately used the term ‘Selfish DNA’ to describe certain DNA sequences in eukaryotic organisms. They argued that the process of DNA replication allows the accumulation within the replicating genome of DNA sequences which have no functional (phenotypic) significance but whose presence stimulates the further accumulation of sequences of the same kind. This ‘selfish’ DNA is supposed, in particular, to account for some of the…
72 Citations
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- BiologyNature
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The function of DNA is to carry the genetic message from generation to generation, and to allow the expression of that message under appropriate conditions, and the structures involved in these processes are called chromosomes.
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A quantitative population genetics model for the evolution of transposable genetic elements is developed. This model shows that "selfish" DNA sequences do not have to be selectively neutral at the…
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Though long dismissed as genetic curiosities, with little relevance for evolution, they are now recognized to affect a wide swath of biological processes, ranging from genome size and architecture to speciation.
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A detailed review of the debate surrounding the C‐value enigma, the various theories proposed to explain it, and the evidence in favour of a causal connection between DNA content and cell size is provided.
The Croonian Lecture, 1981 - Lampbrush chromosomes
- BiologyProceedings of the Royal Society of London. Series B. Biological Sciences
- 1982
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- 2013
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The modulation of DNA content: proximate causes and ultimate consequences.
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- 1999
There is increasing evidence for the primacy of selection in molding genome sizes via impacts on cell size and division rates and processes inducing quantum or doubling series variation in gametic or somatic genome sizes are common.
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- 2005
The new explanation is that there is a selective bias in preference of genetic events which increase DNA material over those which decrease it, and one possible concrete mechanism by which this may occur: deleting strands of DNA is more likely to damage genomic material than migrating or copying strands.
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