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  • 1
    ISSN: 1365-2958
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Medicine
    Notes: Gene transfer between organisms is a prime contributor to evolution. Bacterial conjugation is probably the most important mechanism by which genes are spread among prokaryotes and perhaps also contributes to eukaryotic evolution. Conjugation is mediated by plasmids. The mechanism of conjugation remains ill-understood despite progress in the identification, mapping and sequencing of genes required for plasmid transmission. All conjugation-specific genes (those required only for DNA transfer and establishment) identified to date map to plasmids. We found that IncP plasmids could enter and subsequently convert maxicells, which are trapped in a metabolic state that prevents de novo expression of chromosomal genes, into conjugative donors. This suggests that IncP plasmids encode not only necessary functions but indeed all functions specific to DNA transmission. Thus, like viruses, plasmids can convert non-viable cells into gene vectors.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature biotechnology 25 (2007), S. 1355-1356 
    ISSN: 1546-1696
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: [Auszug] To the editor: We write specifically about the process Nature Biotechnology underwent before publishing the September Feature on the work of Irina Ermakova. We are not writing at this time to debate the science discussed either by Ermakova or Bruce Chassy, Val Giddings, Alan McHughen and Vivian ...
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature biotechnology 22 (2004), S. 1105-1109 
    ISSN: 1546-1696
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: [Auszug] Transgenic crops are approved for release in some countries, while many more countries are wrestling with the issue of how to conduct risk assessments. Controls on field trials often include monitoring of horizontal gene transfer (HGT) from crops to surrounding soil microorganisms. Our analysis of ...
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    [s.l.] : Macmillan Magazines Ltd.
    Nature 406 (2000), S. 13-13 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Sir New Zealand has found a novel approach to the problems caused by the brain drain and by chronic underfunding for basic biological research. The government's solution is to make much biological research illegal instead of just prohibitively expensive (see page ...
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 363 (1993), S. 308-308 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR - Enquist and Arak's paper1 and the accompanying News and Views arti-cle by Hewlett2 about modelling the evolution of characteristics using a neural network are taken as qualified support for Darwin's sexual selection hypothesis. In the process, several prob-lems emerge. First, the results are ...
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 363 (1993), S. 202-202 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR - I am aware of two letters (John P. Gibson Nature 346, 213; 1990 and Peter H. Fitzgerald Nature 362, 388; 1993) discussing pay differentials at New Zealand universities for the same position occupied by a researcher with either medical or academic training. Both argue lucidly that if a ...
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 340 (1989), S. 205-209 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Conjugative plasmids of Escherichia coli can mobilize DNA transmission from this bacterium to the yeast Saccharomyces cerevisiae. The process shares some of the features of conjugation between bacteria and could be evolutionary significant in promoting trans-kingdom genetic ...
    Type of Medium: Electronic Resource
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