linkedin post 2016-10-16 06:03:03

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ARTIFICIAL REPRODUCTION. "The less a scientist says about that now the better. It is a wonderful subject, and in many ways an awful one. That the human species may be made artificially to reproduce itself by the withdrawal of chemical restraint by other than natural means is a matter we do not like to contemplate." (Loeb). https://lnkd.in/eQf5Evv View in LinkedIn
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linkedin post 2016-10-17 05:39:22

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MECHANISMS OF PLOIDY. "Polyploids (individuals carrying more than two sets of chromosomes) can originate through a variety of pathways. These include the somatic doubling of chromosomes in meristematic tissue during mitosis and, perhaps more commonly, unreduced gametes." https://lnkd.in/es_dhAz View in LinkedIn
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linkedin post 2016-10-17 05:35:08

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DEVILS AND DETAILS. "Hybridization between diploids and tetraploids can lead to new allopolyploid species, often via a triploid intermediate. Viable triploids are often produced asymmetrically, with greater success observed for “maternal-excess” crosses where the mother has a higher ploidy than the father." https://lnkd.in/es_dhAz View in LinkedIn
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linkedin post 2016-10-17 05:31:54

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SPIN CYCLE CENTRALITY. "I suggest that this perspective is central to much of plant biology, a proposal bolstered by the realization that the size and functional diversification of contemporary plant multi-gene family structures, gene expression patterns, and genic contexts all represent the culmination of this repeated “wash–rinse–repeat” cycle of polyploidization followed by nonrandom and incomplete diploidization." http://www.amjbot.org/content/early/2015/10/09/ajb.1500320 View in LinkedIn
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linkedin post 2016-10-17 05:22:45

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PREFERRED GENOME. "A second intriguing aspect of the diploidization process is that it may be nonrandom with respect to retention of the ancestral progenitor genomes. Phrased alternatively, it has been suggested that one of the two genomes is preferentially retained, often with higher gene expression levels than in the more fractionated genome." http://www.amjbot.org/content/early/2015/10/09/ajb.1500320 View in LinkedIn
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linkedin post 2016-10-17 05:17:21

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HYPOTHESES FOR SELECTIVITY. "A number of nonmutually exclusive explanations have been forwarded to account for these patterns, including differences in the propensity of genes to experience neutral or selectively imposed subfunctionalization or neofunctionalization, constraints imposed by dosage considerations, and the need for stoichiometric balance in multiprotein complexes." http://www.amjbot.org/content/early/2015/10/09/ajb.1500320 View in LinkedIn
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