Small genome of Candidatus Blochmannia, the bacterial endosymbiont of Camponotus, implies irreversible specialization to an intracellular lifestyle
Wernegreen, Jennifer J.
Lazarus, Adam B.
Degnan, Patrick H.
MetadataShow full item record
Blochmannia (Candidatus Blochmannia gen. nov.) is the primary bacterial endosymbiont of the ant genus Camponotus. Like other obligate endosymbionts of insects, Blochmannia occurs exclusively within eukaryotic cells and has experienced long-term vertical transmission through host lineages. In this study, PFGE was used to estimate the genome size of Blochmannia as approximately 800 kb, which is significantly smaller than its free-living relatives in the enterobacteria. This small genome implies that Blochmannia has deleted most of the genetic machinery of related free-living bacteria. Due to restricted gene exchange in obligate endosymbionts, the substantial gene loss in Blochmannia and other insect mutualists may reflect irreversible specialization to a host cellular environment.
Author Posting. © Society for General Mircobiology, 2002. This article is posted here by permission of Society for General Mircobiology for personal use, not for redistribution. The definitive version was published in Microbiology 148 (2002): 2551-2556.
Showing items related by title, author, creator and subject.
Draft genome sequence of marine alphaproteobacterial strain HIMB11, the first cultivated representative of a unique lineage within the Roseobacter clade possessing an unusually small genome Durham, Bryndan P.; Grote, Jana; Whittaker, Kerry A.; Bender, Sara J.; Luo, Haiwei; Grim, Sharon L.; Brown, Julia; Casey, John F.; Dron, Antony; Florez-Leiva, Lennis; Krupke, Andreas; Luria, Catherine M.; Mine, Aric; Nigro, Olivia D.; Pather, Santhiska; Talarmin, Agathe; Wear, Emma; Weber, Thomas; Wilson, Jesse; Church, Matthew J.; DeLong, Edward F.; Karl, David M.; Steward, Grieg F.; Eppley, John; Kyrpides, Nikos C.; Schuster, Stephan; Rappe, Michael S. (Genomic Standards Consortium, 2014)Strain HIMB11 is a planktonic marine bacterium isolated from coastal seawater in Kaneohe Bay, Oahu, Hawaii belonging to the ubiquitous and versatile Roseobacter clade of the alphaproteobacterial family Rhodobacteraceae. ...
Fundulus as the premier teleost model in environmental biology : opportunities for new insights using genomics Burnett, Karen G.; Bain, Lisa J.; Baldwin, William S.; Callard, Gloria V.; Cohen, Sarah; Di Giulio, Richard T.; Evans, David H.; Gomez-Chiarri, Marta; Hahn, Mark E.; Hoover, Cindi A.; Karchner, Sibel I.; Katoh, Fumi; MacLatchy, Deborah L.; Marshall, William S.; Meyer, Joel N.; Nacci, Diane E.; Oleksiak, Marjorie F.; Rees, Bernard B.; Singer, Thomas D.; Stegeman, John J.; Towle, David W.; Van Veld, Peter A.; Vogelbein, Wolfgang K.; Whitehead, Andrew; Winn, Richard N.; Crawford, Douglas L. (2007-09-01)A strong foundation of basic and applied research documents that the estuarine fish Fundulus heteroclitus and related species are unique laboratory and field models for understanding how individuals and populations interact ...
Reitzel, Adam M.; Sullivan, James C.; Traylor-Knowles, Nikki; Finnerty, John R. (Marine Biological Laboratory, 2008-06)Salt marshes are challenging habitats due to natural variability in key environmental parameters including temperature, salinity, ultraviolet light, oxygen, sulfides, and reactive oxygen species. Compounding this natural ...