6533b82ffe1ef96bd1295d3c

RESEARCH PRODUCT

The evolutionary history of symbiotic associations among bacteria and their animal hosts: a model

Andrés MoyaRosario GilAmparo Latorre

subject

Microbiology (medical)Bacterial genome sizeBiologyreplacementBacterial Physiological PhenomenaGenomeEvolution MolecularAnimalsgenome reductionSymbiosisGeneSequence DeletionGeneticsendosymbiosisComplementationBacteriaObligateEndosymbiosisGeneral Medicinebiology.organism_classificationSOPE (Sitophilus oryzae primary endorsement)ComplementationInfectious DiseasesWeevilsGenetic isolateGene DeletionGenome BacterialBacteria

description

AbstractA model to explain the evolutionary history of animal-bacteria obligatory mutualistic symbiosis is presented. Dispensability of genes and genetic isolation are key factors in the reduction process of these bacterial genomes. Major steps in such genome reductive evolution, leading towards primary endoslmblosis, and the possibility of complementation or replacement by a secondary symbiont are also indicated. Yet, we need to understand what happens at the beginning of the adaptative process towards an obligate mutualistic relationship. For this purpose, we propose to sequence the complete genome of SOPE, the primary endosymbiont of the rice weevil.

https://doi.org/10.1111/j.1469-0691.2008.02689.x