linkedin post 2017-04-09 05:48:23

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SO ENDS the first weekend on evo-devo as an idea. The evolution and development of symmetry in the snapdragon is a topic that has engaged some of our brightest minds. Such focus and attention to the smallest details of a fragment of nature is not only a marvelous luxury but also permits a portal into the greater inner workings of life on planet earth. We are enriched by such scholarship. View in LinkedIn
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linkedin post 2017-04-10 04:30:43

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BORROWED MACHINERY. "Most DNA viruses are entirely dependent on the host DNA and RNA synthesizing machinery, and RNA processing machinery, while larger genome viruses encode this machinery themselves. All RNA viruses use their own RNA replicase enzymes to replicate their genomes." https://lnkd.in/dNTbYMw View in LinkedIn
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linkedin post 2017-04-10 04:34:34

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LARGER GENOMES. "Replacement of RNA by DNA as genetic material has thus opened the way to the formation of large genomes, a prerequisite for the evolution of modern cells. The above scenario nicely explains why, through Darwinian competition, cell populations with DNA genomes finally eliminated cells with RNA genomes." https://lnkd.in/dNTbYMw View in LinkedIn
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linkedin post 2017-04-10 04:39:09

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ANCIENT PLAYERS. "These speculations on the origin of DNA fit well with hypotheses on viral origin that consider no longer viruses as fragments of genetic materials recently escaped from their hosts, but as ancient players in life evolution, possibly predating the divergence between the three domains of life." https://lnkd.in/dNTbYMw View in LinkedIn
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linkedin post 2017-04-10 04:43:33

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RANGE OF SOPHISTICATION. "Some DNA viruses replicate their genome using only replication proteins encoded by their host (with the exception of initiator proteins). However, many large DNA viruses encode also several proteins involved in the elongation step of DNA replication." https://lnkd.in/dNTbYMw View in LinkedIn
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linkedin post 2017-04-11 05:29:31

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VIRUS TO EUKARYOTIC CELLS. "If DNA and DNA replication proteins originated in viruses, one can imagine that DNA replication mechanisms have been transferred from viruses to cells. Many protein phylogenies support the idea of ancient transfers of replicative proteins between cells and viruses." https://lnkd.in/dNTbYMw View in LinkedIn
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