Convergent Evolution in Intracellular Elements Plasmids as Model Endosymbionts

Autor(en): Dietel, Anne-Kathrin
Kaltenpoth, Martin
Kost, Christian 
Stichwörter: ANTIBIOTIC-RESISTANCE; BACTERIAL SYMBIONTS; Biochemistry & Molecular Biology; BUCHNERA-APHIDICOLA; CONJUGATIVE PLASMID; COPY NUMBER; CYTOPLASMIC INCOMPATIBILITY; GENE; GENOME SEQUENCE; Microbiology; PROTECTION; RESISTANCE PLASMIDS
Erscheinungsdatum: 2018
Herausgeber: ELSEVIER SCI LTD
Journal: TRENDS IN MICROBIOLOGY
Volumen: 26
Ausgabe: 9
Startseite: 755
Seitenende: 768
Zusammenfassung: 
Endosymbionts are organisms that live inside the cells of other species. This lifestyle is ubiquitous across the tree of life and is featured by unicellular eukaryotes, prokaryotes, and by extrachromosomal genetic elements such as plasmids. Given that all of these elements dwell in the cytoplasm of their host cell, they should be subject to similar selection pressures. Here we show that strikingly similar features have evolved in both bacterial endosymbionts and plasmids. Since host and endosymbiont are often metabolically tightly intertwined, they are difficult to disentangle experimentally. We propose that using plasmids as tractable model systems can help to solve this problem, thus allowing fundamental questions to be experimentally addressed about the ecology and evolution of endosymbiotic interactions.
ISSN: 0966842X
DOI: 10.1016/j.tim.2018.03.004

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