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On procaryotic gene expression in eucaryotic systems.

J Horst, H Stanbro, C R Merril

    Human Genetics
    |January 1, 1980
    PubMed
    Summary
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    Procaryotic and eucaryotic organisms can exchange genetic material, impacting evolution and genetic engineering. Research explores these interactions for biomedical and agricultural applications.

    Area of Science:

    • Microbiology
    • Molecular Biology
    • Evolutionary Biology

    Background:

    • Prokaryotes and eukaryotes exhibit diverse natural interactions, including symbiosis and microbial flora.
    • Genetic transfer between prokaryotes and eukaryotes was previously underestimated but is now supported by growing evidence.
    • These interactions have significant implications for evolutionary processes and genetic manipulation.

    Purpose of the Study:

    • To summarize experimental findings on prokaryotic gene uptake, replication, transcription, translation, and integration in eukaryotic systems.
    • To discuss the implications of these findings for fundamental research and potential biomedical applications.
    • To explore the role of prokaryotic-eukaryotic genetic interactions in understanding pathology and developing new technologies.

    Main Methods:

    Related Experiment Videos

    • In vitro and in vivo studies using plant and animal systems.
    • Experiments involving translation of bacterial messenger RNAs in cell-free systems (wheat germ, rabbit reticulocyte).
    • Introduction of bacterial genes into plant protoplasts, animal cells, and whole organisms.

    Main Results:

    • Demonstrated successful uptake, replication, transcription, translation, and integration of prokaryotic genes in various eukaryotic systems.
    • Provided evidence for functional expression of prokaryotic genes within eukaryotic hosts.
    • Highlighted the feasibility of inter-domain genetic transfer and manipulation.

    Conclusions:

    • Prokaryotic-eukaryotic genetic exchange is a plausible natural phenomenon with broad evolutionary consequences.
    • Understanding these interactions can illuminate unresolved questions in pathology, such as the role of gut microbiota in carcinogenesis.
    • These findings offer valuable tools for probing eukaryotic regulatory mechanisms and advancing agricultural genetic engineering.