linkedin post 2018-06-05 03:49:33

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HETEROPLASMY DEFENSE. "A third consequence of a uniparental system is that it guards against “heteroplasmy,” the presence of two or more different organelle genomes in the same organism. In a recent study, mice were artificially manipulated to be heteroplasmic for mitochondrial genomes, and they showed a number of developmental and cognitive defects; the investigators suggest that disparate OXPHOS subunits encoded by the two genomes might assemble into defective complexes." https://lnkd.in/ebVhXPf View in LinkedIn
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linkedin post 2018-06-05 03:46:51

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ORGANELLE GENOME ELIMINATION. "This may serve to guard against “selfish” genomes that might otherwise infest and destroy the population, or even the species, with unregulated organelles. Again we encounter meiotic symmetry in that such “purging” functions are also a feature of meiosis.” https://lnkd.in/ebVhXPf View in LinkedIn
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linkedin post 2018-06-05 03:43:52

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HAPLOID ORGANELLE SELECTION. "A second consequence of uniparental inheritance is that at each sexual generation, a uniform set of organelle genomes is exposed to natural selection in the “unmasked” haploid state, and a uniform set of organelle genomes is eliminated from the gene pool altogether." https://lnkd.in/ebVhXPf View in LinkedIn
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linkedin post 2018-06-09 05:03:29

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EMERGING PHAGOSPHERE. "This view reveals substantial diversity even among phages known to infect a common host strain, but the relationships are complex, with mosaic genomic architectures generated by illegitimate recombination over a long period of evolutionary history." A promiscuous bunch. http://jvi.asm.org/content/89/16/8107.short View in LinkedIn
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linkedin post 2018-06-07 04:39:15

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BIOLOGICAL MYTHS. “A compound hypothesis positing that self-fertilization is an evolutionary dead end conflates two distinct claims: the transition from outcrossing to selfing is unidirectional; and the diversification rate, or the balance of the speciation and extinction rate, is negative for selfing species. Both claims have enjoyed widespread informal support for decades, but have recently come under suspicion.” http://onlinelibrary.wiley.com/doi/10.1111/nph.12182/full View in LinkedIn
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linkedin post 2018-06-09 05:00:30

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"BACTERIOPHAGES are the most abundant biological entities in the biosphere, and this dynamic and old population is, not surprisingly, highly diverse genetically. Relative to bacterial genomics, phage genomics has advanced slowly, and a higher-resolution picture of the phagosphere is only just emerging." Bacteriophages are viruses that prey on bacteria. https://lnkd.in/dWD3NUK View in LinkedIn
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linkedin post 2018-06-07 04:37:28

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COMBINED SEXES. “The vast majority of flowering plants are hermaphrodites, bearing both ovules and pollen enclosed in the same flower. They display an impressive diversity in form and function, with substantial variation within and across species in the degree to which self-fertilization is avoided or embraced.” https://lnkd.in/dj9hK7n View in LinkedIn
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linkedin post 2018-06-09 04:56:55

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BACTERIAL IGNORANCE. "The earth contains enormous microbial diversity. Microbes colonize a wide variety of environmental niches, creating complex ecosystems and communities. Despite the marvelous progress in microbiology over the past century, we have only scratched the surface of this microbial world. It has been estimated that
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