linkedin post 2016-02-18 15:51:16

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NO TREE OF LIFE. "Rather than rising from a single trunk, they say, the tree of life stands on an interweaving root system. Rather than evolving from one ‘last universal ancestor’, all life arose from a communal pool of primitive cells with unbridled zeal for exchanging DNA. For relatively simple cells with only a handful of genes each, swapping DNA was an excellent strategy for acquiring and preserving the best adaptations around." https://aeon.co/essays/genes-that-jump-species-does-this-shake-the-tree-of-life View in LinkedIn
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linkedin post 2016-02-17 05:41:50

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GENE IMPORTS EXPAND INNOVATION. "Our results extend recent findings that HGT is more prevalent in animals than previously suspected, and they suggest that organisms that survive extreme stresses might be predisposed to acquiring foreign genes." http://www.pnas.org/content/112/52/15976.abstract View in LinkedIn
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linkedin post 2016-02-17 05:37:36

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"FOREIGN GENES have supplemented, expanded, and even replaced some metazoan gene families within the tardigrade genome. Our results demonstrate that an unexpectedly large fraction of an animal genome can be derived from foreign sources." http://www.pnas.org/content/112/52/15976.abstract View in LinkedIn
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linkedin post 2016-02-17 05:33:27

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EXTREMOPHILE HGT. "Approximately one-sixth of the genes in the tardigrade genome were found to have been acquired through horizontal transfer, a proportion nearly double the proportion of previous known cases of extreme horizontal gene transfer (HGT) in animals." https://lnkd.in/epvRixb View in LinkedIn
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linkedin post 2016-02-17 05:20:13

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PARTNER GOVERNED. "It has been shown that the integration of a single transferred gene into regulatory interaction networks is very slow. In the case of genes providing the receptor with new functions...it is dependent on the number of partners for the gene product in the regulatory network...products of these genes are integrated in the periphery of the corresponding regulatory network. On the other hand, transferred genes codifying for products with few partners are more easily deleted from genomes." https://lnkd.in/eVQ_4UY View in LinkedIn
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linkedin post 2016-02-16 06:12:31

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GENE SUPER-HIGHWAYS. "The preferential exchange of genetic material among species inhabiting the same environments may lead to the emergence of assemblages of species or communities which become bound together not only through adaptation to similar conditions but also through access and sharing of an almost common gene pool." https://lnkd.in/eXE-r93 View in LinkedIn
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