linkedin post 2017-09-08 06:07:11

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NEEDS DATA. "Hence, it is far from clear whether genetic fixation by apomixis suffices to fix the agriculturally relevant phenotypes of F1 hybrids, in particular because hybridization was recently shown to induce epigenetic changes." http://www.sciencedirect.com/science/article/pii/S0960982215015766 View in LinkedIn
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linkedin post 2017-09-08 06:04:31

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SMALL PROBLEM. "Traits (phenotypes) do not only result from a complex combination of genetic and environmental variation but can also be influenced by epigenetic variation, which can be transgenerationally heritable in plants." http://www.sciencedirect.com/science/article/pii/S0960982215015766 View in LinkedIn
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linkedin post 2017-09-10 05:44:41

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THE GENETIC CONFIRMATION. "Modern evolutionary theory and empirical research in genetics have consistently reaffirmed the ability of conventional population genetics to explain the origin of new species and phenotypes, and simultaneously exposed flaws in the alternatives." http://link.springer.com/article/10.1007/s11692-012-9209-0 View in LinkedIn
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linkedin post 2017-09-09 06:16:18

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NO SUSPENDED DISBELIEF. "A hopeful monster is an individual phenotypically discontinuous from the range of phenotypes of its population, and whose hopes of establishing a new lineage lie in finding a novel niche for which its monstrosity happens to be preadapted. Such a mechanism of speciation was criticized early for being so improbable as to “overtax one’s credulity” because of the rarity of the initial mutation of large effect, and the resulting improbability of finding an equally monstrous mate." http://link.springer.com/article/10.1007/s11692-012-9209-0 View in LinkedIn
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linkedin post 2017-09-09 06:12:42

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EVOLUTION BY LUCK. "Goldschmidt proposed that a novel phenotype (such as insect wings, a character associated with higher level taxonomy) must first arise as an instantaneous product of a single “macromutation” or “systemic mutation”. Individuals bearing such macromutations were characterized as “hopeful monsters” by Goldschmidt to emphasize that their appearance is neither purposeful nor gradual, and their prospects for success are a matter of luck." http://link.springer.com/article/10.1007/s11692-012-9209-0 View in LinkedIn
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linkedin post 2017-09-09 06:09:10

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MACROMUTATIONS. "Some theorists have invoked special phenomena such as genome-wide “macromutations” or “genetic revolutions” to get around perceived difficulties with the emergence of profound change as the accumulation of subtle changes by the conventional dynamics of mutation, gene flow, drift and selection." http://link.springer.com/article/10.1007/s11692-012-9209-0 View in LinkedIn
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