Document Detail

Differentially expressed genes reveal adaptations between free-living and symbiotic niches of Vibrio fischeri in a fully established mutualism.
MedLine Citation:
PMID:  17473891     Owner:  NLM     Status:  MEDLINE    
A major force driving in the innovation of mutualistic symbioses is the number of adaptations that both organisms must acquire to provide overall increased fitness for a successful partnership. Many of these symbioses are relatively dependent on the ability of the symbiont to locate a host (specificity), as well as provide some novel capability upon colonization. The mutualism between sepiolid squids and members of the Vibrionaceae is a unique system in which development of the symbiotic partnership has been studied in detail, but much remains unknown about the genetics of symbiont colonization and persistence within the host. Using a method that captures exclusively expressed transcripts in either free-living or host-associated strains of Vibrio fischeri, we identified and verified expression of genes differentially expressed in both states from two symbiotic strains of V. fischeri. These genes provide a glimpse into the microhabitat V. fischeri encounters in both free-living seawater and symbiotic host light organ-associated habitats, providing insight into the elements necessary for local adaptation and the evolution of host specificity in this unique mutualism.
B W Jones; M K Nishiguchi
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Canadian journal of microbiology     Volume:  52     ISSN:  0008-4166     ISO Abbreviation:  Can. J. Microbiol.     Publication Date:  2006 Dec 
Date Detail:
Created Date:  2007-05-02     Completed Date:  2007-08-13     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0372707     Medline TA:  Can J Microbiol     Country:  Canada    
Other Details:
Languages:  eng     Pagination:  1218-27     Citation Subset:  IM    
Department of Biology, New Mexico State University, Las Cruces 88003-8001, USA.
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MeSH Terms
Adaptation, Physiological / genetics,  physiology
Blotting, Southern
DNA, Complementary / chemistry,  genetics
Decapodiformes / microbiology*
Gene Expression Profiling
Gene Expression Regulation, Bacterial*
Gene Library
Reverse Transcriptase Polymerase Chain Reaction
Sequence Analysis, DNA
Symbiosis / genetics*
Vibrio fischeri / genetics*,  growth & development
Reg. No./Substance:
0/DNA, Complementary

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