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RESEARCH PRODUCT
Et tu, Brute? Not Even Intracellular Mutualistic Symbionts Escape Horizontal Gene Transfer
Rosario GilSergio López-madrigalsubject
0301 basic medicine[SDV.OT]Life Sciences [q-bio]/Other [q-bio.OT]Adaptive valuelcsh:QH426-470transfert horizontal de gènenutritional symbiosisReviewBiologyGenome03 medical and health sciencesGeneticshorizontal gene transfer (HGT);insects;integrative evolution;intracellular bacteria;nutritional symbiosishorizontal gene transfer (HGT)insectsGenetics (clinical)Endosymbiotic bacteriaEcologyintracellular bacteriaIntracellular parasiteinsectatransformation intégrativeintegrative evolutionlcsh:Genetics030104 developmental biologyEvolutionary biologyHorizontal gene transferbactérie intracellulairesymbioseFunction (biology)Autre (Sciences du Vivant)description
Many insect species maintain mutualistic relationships with endosymbiotic bacteria. In contrast to their free-living relatives, horizontal gene transfer (HGT) has traditionally been considered rare in long-term endosymbionts. Nevertheless, meta-omics exploration of certain symbiotic models has unveiled an increasing number of bacteria-bacteria and bacteria-host genetic transfers. The abundance and function of transferred loci suggest that HGT might play a major role in the evolution of the corresponding consortia, enhancing their adaptive value or buffering detrimental effects derived from the reductive evolution of endosymbionts' genomes. Here, we comprehensively review the HGT cases recorded to date in insect-bacteria mutualistic consortia, and discuss their impact on the evolutionary success of these associations.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2017-01-01 |