linkedin post 2018-02-16 06:28:06

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MAIN LINE THINKING. “According to such models, all individuals within a species resemble each other because they descend from a single ancestor that bested its siblings by virtue of some beneficial mutation (or sequence of mutations)—fixing not only the favored mutation but the entire genome in which it first occurred. (Microbiologists vigorously debate the applicability of species concepts developed by animal and plant biologists, as if the concepts themselves were clear.” https://lnkd.in/djKBnru View in LinkedIn
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linkedin post 2018-02-15 05:46:35

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NEW VIEW. “The traditional view, that prokaryotic evolution can be understood primarily in terms of clonal divergence and periodic selection, must be augmented to embrace gene exchange as a creative force, itself responsible for much of the pattern of similarities and differences we see between prokaryotic microbes.” https://lnkd.in/djKBnru View in LinkedIn
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linkedin post 2018-02-19 05:59:37

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“MOLECULAR PHYLOGENIES for different genes in different species should be congruent if interspecies recombination is infrequent. However, recombination across species boundaries—howsoever defined—does occur much more frequently than envisioned by Dykhuizen and Green, producing incongruent phylogenies between species as well as within them.” https://lnkd.in/djKBnru View in LinkedIn
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linkedin post 2018-02-18 04:57:12

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SO ENDS this series of quotes from a brilliant essay on nature’s connectedness. Dylan Thomas would have appreciated it: " "“The force that through the green fuse drives the flower" "Drives my green age; that blasts the roots of trees" "Is my destroyer." "And I am dumb to tell the crooked rose" "My youth is bent by the same wintry fever.” https://lnkd.in/eU9uxsa View in LinkedIn
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