linkedin post 2021-11-21 04:33:35

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NUTRIENT STARVATION. “Complex ecologies also evolve in closed cultures in which the nutrients are exhausted and are not renewed. In these cultures, the viable cell population declines over time, as starvation takes its toll. However, not all genotypes die at the same rate, and the survivors are enriched for growth advantage in stationary phase (GASP) mutants, that exploit by-products of dead and dying cells.” https://www.nature.com/articles/nrg3564 View in LinkedIn
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linkedin post 2021-11-21 04:31:46

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TANGLED BANK. “In The Origin of Species, Darwin memorably envisioned a “tangled bank” in which organisms were “dependent upon each other in so complex a manner” as an outcome of natural selection. To this point, we have generally ignored ecological interactions beyond 'scramble' competition for limiting resources.” https://www.nature.com/articles/nrg3564 View in LinkedIn
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linkedin post 2021-11-22 05:59:02

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DARWINIZING GAIA. “Attempts to reconcile the Gaia hypothesis with Darwinian theory falter when organisms, species or even multi-species communities are seen as the relevant “units of selection”. If, instead, the biogeochemical cycles and other interaction networks that are implemented by such multi-species communities are taken as units of selection, a coherent theory of maintenance (if not also origins) can be articulated.” (Professor W. Ford Doolittle). https://lnkd.in/dVhTMKFm View in LinkedIn
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linkedin post 2021-11-21 04:29:16

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GENETIC ARCHITECTURE. “As fitness landscapes are complex and may have multiple peaks, some mutational paths may lead to 'dead ends' with no, or at least fewer, opportunities to further improve. In other cases, certain mutations may open up new opportunities for evolution that could not be accessed if other routes were taken.” https://www.nature.com/articles/nrg3564 View in LinkedIn
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