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Abstract of cited article;
In the theory of viral eukaryogenesis I propose here, the eukaryotic nucleus evolved from a complex DNA virus. It is proposed that the virus established a persistent presence in the cytoplasm of a methanogenic mycoplasma and evolved into the eukaryotic nucleus by acquiring a set of essential genes from the host genome and eventually usurping its role. It is proposed that several characteristic features of the eukaryotic nucleus derive from its viral ancestry. These include mRNA capping, linear chromosomes, and separation of transcription from translation. In the model, phagocytosis and other membrane fusion-based processes are derived from viral membrane fusion processes and evolved in concert with the nucleus. The coevolution of phagocytosis and the nucleus rendered much of the host archaeal genome redundant since the protoeukaryote could obtain raw materials and energy by engulfing bacterial syntrophs/prey. This redundancy allowed loss of the archaeal chromosome, generating an organism with eukaryotic features. The evolution of phagocytosis allowed the eukaryotes to be the first organisms to occupy the niche of predator.
To this layman reader, it is unclear whether the host procaryotic cell was a mycoplasma or an Archaeal cell. Is there an expert in the house? archola 03:11, 9 February 2006 (UTC)
I propose the following paragraph be temporarily included in the article in order to elucidate on the concept behind this theory -- until someone better qualified happens upon it.
I am by no means an expert, but this topic interests me, so I've read a fair amount about it. -- Xanthine 15:26, 28 April 2006 (UTC)
The following suggestions were generated by a semi-automatic javascript program, and might not be applicable for the article in question.
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[?]You may wish to browse through User:AndyZ/Suggestions for further ideas. Thanks, Arch O. La Grigory Deepdelver 18:04, 25 February 2008 (UTC)
It would be nice to know how widely accepted this theory is. cyclosarin ( talk) 09:11, 27 April 2008 (UTC)
If this turns out to be true,would that mean that humanity's ultimate ancestor was a virus? Now THERE'S something to make the fundies spaz out. 203.110.205.211 ( talk) 15:33, 11 October 2011 (UTC)
It is definitely one of the theories of there, I would not say it is the most accepted. There are quite many theories for eukaryogenesis which sometimes only differ in the actual symbiotic partners. The viral eukaryogenesis hypothesis fits the so called fusion hypotheses, which envision the emergence of eukaryotes as a fusion between archaea, bacteria and (here) virus. -- Kunadam ( talk) 14:29, 29 August 2014 (UTC)
This article is very repetitive and unstructured, and much of the writing is editorialised. The content needs structuring into sections and the tone needs to be more considered. Fences& Windows 07:44, 8 September 2015 (UTC)
This article is somewhat unbalanced and entirely accepting of the hypothesis. The argument in favor would be strengthened if the shortcomings were enumerated. There must be a few cogent articles "against" out there. This article sounds entirely too credulous. Anyone knowledgeable, please bring on the criticisms.-- Quisqualis ( talk) 18:41, 7 November 2016 (UTC)
![]() | This article is rated Start-class on Wikipedia's
content assessment scale. It is of interest to the following WikiProjects: | |||||||||||||||||||||||||||||||||
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Abstract of cited article;
In the theory of viral eukaryogenesis I propose here, the eukaryotic nucleus evolved from a complex DNA virus. It is proposed that the virus established a persistent presence in the cytoplasm of a methanogenic mycoplasma and evolved into the eukaryotic nucleus by acquiring a set of essential genes from the host genome and eventually usurping its role. It is proposed that several characteristic features of the eukaryotic nucleus derive from its viral ancestry. These include mRNA capping, linear chromosomes, and separation of transcription from translation. In the model, phagocytosis and other membrane fusion-based processes are derived from viral membrane fusion processes and evolved in concert with the nucleus. The coevolution of phagocytosis and the nucleus rendered much of the host archaeal genome redundant since the protoeukaryote could obtain raw materials and energy by engulfing bacterial syntrophs/prey. This redundancy allowed loss of the archaeal chromosome, generating an organism with eukaryotic features. The evolution of phagocytosis allowed the eukaryotes to be the first organisms to occupy the niche of predator.
To this layman reader, it is unclear whether the host procaryotic cell was a mycoplasma or an Archaeal cell. Is there an expert in the house? archola 03:11, 9 February 2006 (UTC)
I propose the following paragraph be temporarily included in the article in order to elucidate on the concept behind this theory -- until someone better qualified happens upon it.
I am by no means an expert, but this topic interests me, so I've read a fair amount about it. -- Xanthine 15:26, 28 April 2006 (UTC)
The following suggestions were generated by a semi-automatic javascript program, and might not be applicable for the article in question.
<div class="references-small"><references/></div>
.
[?]You may wish to browse through User:AndyZ/Suggestions for further ideas. Thanks, Arch O. La Grigory Deepdelver 18:04, 25 February 2008 (UTC)
It would be nice to know how widely accepted this theory is. cyclosarin ( talk) 09:11, 27 April 2008 (UTC)
If this turns out to be true,would that mean that humanity's ultimate ancestor was a virus? Now THERE'S something to make the fundies spaz out. 203.110.205.211 ( talk) 15:33, 11 October 2011 (UTC)
It is definitely one of the theories of there, I would not say it is the most accepted. There are quite many theories for eukaryogenesis which sometimes only differ in the actual symbiotic partners. The viral eukaryogenesis hypothesis fits the so called fusion hypotheses, which envision the emergence of eukaryotes as a fusion between archaea, bacteria and (here) virus. -- Kunadam ( talk) 14:29, 29 August 2014 (UTC)
This article is very repetitive and unstructured, and much of the writing is editorialised. The content needs structuring into sections and the tone needs to be more considered. Fences& Windows 07:44, 8 September 2015 (UTC)
This article is somewhat unbalanced and entirely accepting of the hypothesis. The argument in favor would be strengthened if the shortcomings were enumerated. There must be a few cogent articles "against" out there. This article sounds entirely too credulous. Anyone knowledgeable, please bring on the criticisms.-- Quisqualis ( talk) 18:41, 7 November 2016 (UTC)