linkedin post 2016-02-05 05:59:01

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HORIZONTAL GENE HIGHWAY. "Horizontal gene transfer is an important force modulating evolution in the prokaryotic world and the evolution of particular eukaryotes. Although gene exchange is easier in closely related organisms, horizontal gene transfer occurred between both domains in the evolution of Archaea and Bacteria." https://lnkd.in/eVQ_4UY View in LinkedIn
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linkedin post 2016-02-05 05:55:49

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RADICAL CONSEQUENCES. "What scientists have seen is just a little tip of an immense iceberg,’ says Antonio Teixeira, a biologist at the University of Brasilia. W Ford Doolittle, a biochemist at Dalhousie University in Nova Scotia, agrees: horizontal gene transfer, he wrote recently ‘is far more pervasive and more radical in its consequences than we could have guessed just a decade ago’." https://aeon.co/essays/genes-that-jump-species-does-this-shake-the-tree-of-life View in LinkedIn
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linkedin post 2016-02-04 06:52:24

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HORIZONTAL AND VERTICAL. "According to textbook theories of evolution, the major route of genes moving between organisms is parent to child – whether through sex or asexual cloning – not this sneaky business of escorting genes between unrelated organisms. We must now acknowledge that, even among the most complex organisms, vertical is not the only direction in which genes travel." https://aeon.co/essays/genes-that-jump-species-does-this-shake-the-tree-of-life View in LinkedIn
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linkedin post 2016-02-04 06:50:03

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NO IMMUTABLE SPECIES. "As far as DNA is concerned, however, the supposed walls between species are not nearly so impermeable. Up in the branches of the great tree of life, we are no longer immersed in the ancient communal pool that watered its tangled roots. Yet we cannot escape the winds of promiscuity. Even today – as was true from the start – ‘our’ genes are not ours alone." https://aeon.co/essays/genes-that-jump-species-does-this-shake-the-tree-of-life View in LinkedIn
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linkedin post 2016-02-04 06:46:44

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INHERITANCE. "A fundamental concept in biology is that heritable material, DNA, is passed from parent to offspring, a process called vertical gene transfer. An alternative mechanism of gene acquisition is through horizontal gene transfer (HGT), which involves movement of genetic material between different species." https://lnkd.in/e5G7Nk8 View in LinkedIn
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linkedin post 2016-02-04 06:40:54

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PROMISCUOUS DNA. "The mitochondrial genomes of flowering plants experience frequent insertions of foreign sequences, including linear plasmids that also exist in stand-alone forms within mitochondria. An important feature of many plant mitochondrial genomes is their propensity to acquire foreign or “promiscuous DNA, which comes from diverse sources including the nucleus, plastids, bacteria, viruses, and mitochondria from other plant species." https://lnkd.in/edGrATm View in LinkedIn
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linkedin post 2016-02-06 05:34:32

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A MILLION ENHANCERS. "Transcription factors bind DNA regulatory elements called enhancers, which play key roles in the control of cell-type-specific gene expression programs. A typical mammalian cell contains thousands of active enhancers, and it has been estimated that there may be ∼1 million enhancers active in all human cells." https://lnkd.in/evThR6r View in LinkedIn
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