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Makhrov AA, Ponomareva MV, Khaimina OV, Gilepp VE, Efimova OV, Nechaeva TA, Vasilenkova TI. Abnormal development of gonads of dwarf females and low survival of their offspring as the cause of rarity of resident populations of atlantic salmon (Salmo salar L.). Russ J Dev Biol 2013. [DOI: 10.1134/s1062360413060076] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Marks ME, Castro-Rojas CM, Teiling C, Du L, Kapatral V, Walunas TL, Crosson S. The genetic basis of laboratory adaptation in Caulobacter crescentus. J Bacteriol 2010; 192:3678-88. [PMID: 20472802 PMCID: PMC2897358 DOI: 10.1128/jb.00255-10] [Citation(s) in RCA: 119] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2010] [Accepted: 05/03/2010] [Indexed: 11/20/2022] Open
Abstract
The dimorphic bacterium Caulobacter crescentus has evolved marked phenotypic changes during its 50-year history of culture in the laboratory environment, providing an excellent system for the study of natural selection and phenotypic microevolution in prokaryotes. Combining whole-genome sequencing with classical molecular genetic tools, we have comprehensively mapped a set of polymorphisms underlying multiple derived phenotypes, several of which arose independently in separate strain lineages. The genetic basis of phenotypic differences in growth rate, mucoidy, adhesion, sedimentation, phage susceptibility, and stationary-phase survival between C. crescentus strain CB15 and its derivative NA1000 is determined by coding, regulatory, and insertion/deletion polymorphisms at five chromosomal loci. This study evidences multiple genetic mechanisms of bacterial evolution as driven by selection for growth and survival in a new selective environment and identifies a common polymorphic locus, zwf, between lab-adapted C. crescentus and clinical isolates of Pseudomonas aeruginosa that have adapted to a human host during chronic infection.
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Affiliation(s)
- Melissa E. Marks
- Department of Biochemistry and Molecular Biology, University of Chicago, Chicago, Illinois, Committee on Microbiology, University of Chicago, Chicago, Illinois, 454 Life Sciences, Branford, Connecticut, Integrated Genomics, Chicago, Illinois
| | - Cyd Marie Castro-Rojas
- Department of Biochemistry and Molecular Biology, University of Chicago, Chicago, Illinois, Committee on Microbiology, University of Chicago, Chicago, Illinois, 454 Life Sciences, Branford, Connecticut, Integrated Genomics, Chicago, Illinois
| | - Clotilde Teiling
- Department of Biochemistry and Molecular Biology, University of Chicago, Chicago, Illinois, Committee on Microbiology, University of Chicago, Chicago, Illinois, 454 Life Sciences, Branford, Connecticut, Integrated Genomics, Chicago, Illinois
| | - Lei Du
- Department of Biochemistry and Molecular Biology, University of Chicago, Chicago, Illinois, Committee on Microbiology, University of Chicago, Chicago, Illinois, 454 Life Sciences, Branford, Connecticut, Integrated Genomics, Chicago, Illinois
| | - Vinayak Kapatral
- Department of Biochemistry and Molecular Biology, University of Chicago, Chicago, Illinois, Committee on Microbiology, University of Chicago, Chicago, Illinois, 454 Life Sciences, Branford, Connecticut, Integrated Genomics, Chicago, Illinois
| | - Theresa L. Walunas
- Department of Biochemistry and Molecular Biology, University of Chicago, Chicago, Illinois, Committee on Microbiology, University of Chicago, Chicago, Illinois, 454 Life Sciences, Branford, Connecticut, Integrated Genomics, Chicago, Illinois
| | - Sean Crosson
- Department of Biochemistry and Molecular Biology, University of Chicago, Chicago, Illinois, Committee on Microbiology, University of Chicago, Chicago, Illinois, 454 Life Sciences, Branford, Connecticut, Integrated Genomics, Chicago, Illinois
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