S G Andersson

Summary

Country: Sweden

Publications

  1. ncbi request reprint Genome degradation is an ongoing process in Rickettsia
    J O Andersson
    Department of Molecular Evolution, Uppsala University, Sweden
    Mol Biol Evol 16:1178-91. 1999
  2. ncbi request reprint Origins of mitochondria and hydrogenosomes
    S G Andersson
    Department of Molecular Evolution Box 590 Biomedical Center 751 24, Uppsala, Sweden
    Curr Opin Microbiol 2:535-41. 1999
  3. ncbi request reprint Bioenergetics of the obligate intracellular parasite Rickettsia prowazekii
    S G Andersson
    Department of Molecular Biology, Uppsala University, Uppsala, Sweden
    Biochim Biophys Acta 1365:105-11. 1998
  4. ncbi request reprint Reductive evolution of resident genomes
    S G Andersson
    Dept of Molecular Biology, Uppsala University, Sweden
    Trends Microbiol 6:263-8. 1998
  5. ncbi request reprint Molecular phylogeny and rearrangement of rRNA genes in Rickettsia species
    S G Andersson
    Department of Molecular Evolution, University of Uppsala, Sweden
    Mol Biol Evol 16:987-95. 1999
  6. ncbi request reprint Pseudogenes, junk DNA, and the dynamics of Rickettsia genomes
    J O Andersson
    Department of Molecular Evolution, University of Uppsala, Uppsala, Sweden
    Mol Biol Evol 18:829-39. 2001
  7. ncbi request reprint Evolutionary rates for tuf genes in endosymbionts of aphids
    E U Brynnel
    Department of Molecular Biology, Uppsala University, Sweden
    Mol Biol Evol 15:574-82. 1998
  8. ncbi request reprint Insights into the evolutionary process of genome degradation
    J O Andersson
    Department of Molecular Evolution, Uppsala University, Biomedical Center, Box 590, Uppsala, 751 24, Sweden
    Curr Opin Genet Dev 9:664-71. 1999
  9. ncbi request reprint A phylogenetic analysis of the cytochrome b and cytochrome c oxidase I genes supports an origin of mitochondria from within the Rickettsiaceae
    T Sicheritz-Ponten
    Department of Molecular Biology, Uppsala University, Sweden
    Biochim Biophys Acta 1365:545-51. 1998
  10. ncbi request reprint Mutualists and parasites: how to paint yourself into a (metabolic) corner
    I Tamas
    Department of Molecular Evolution, University of Uppsala, , S-752 36, Uppsala, Sweden
    FEBS Lett 498:135-9. 2001

Collaborators

Detail Information

Publications18

  1. ncbi request reprint Genome degradation is an ongoing process in Rickettsia
    J O Andersson
    Department of Molecular Evolution, Uppsala University, Sweden
    Mol Biol Evol 16:1178-91. 1999
    ..This may explain the low genomic G + C content (29%), the small genome size (1.1 Mb), and the high noncoding content (24%), as well as the presence of several pseudogenes in the Rickettsia prowazekii genome...
  2. ncbi request reprint Origins of mitochondria and hydrogenosomes
    S G Andersson
    Department of Molecular Evolution Box 590 Biomedical Center 751 24, Uppsala, Sweden
    Curr Opin Microbiol 2:535-41. 1999
    ..In contrast, the hydrogen and the syntrophy hypotheses for the origin of mitochondria do not receive support from the available data. It remains to be seen how the evolution of hydrogenosomes is related to that of mitochondria...
  3. ncbi request reprint Bioenergetics of the obligate intracellular parasite Rickettsia prowazekii
    S G Andersson
    Department of Molecular Biology, Uppsala University, Uppsala, Sweden
    Biochim Biophys Acta 1365:105-11. 1998
    ..prowazekii and to discuss the results of phylogenetic reconstructions based on a variety of bioenergetic molecules which shed light on the origin and evolution of the mitochondrial genomes...
  4. ncbi request reprint Reductive evolution of resident genomes
    S G Andersson
    Dept of Molecular Biology, Uppsala University, Sweden
    Trends Microbiol 6:263-8. 1998
    ..Here, we discuss the influence of such reductive processes on the evolution of genomes that replicate within the domain of a host genome...
  5. ncbi request reprint Molecular phylogeny and rearrangement of rRNA genes in Rickettsia species
    S G Andersson
    Department of Molecular Evolution, University of Uppsala, Sweden
    Mol Biol Evol 16:987-95. 1999
    ..The unique organization of the 23S rRNA genes provides a simple diagnostic tool for identification of Rickettsia species...
  6. ncbi request reprint Pseudogenes, junk DNA, and the dynamics of Rickettsia genomes
    J O Andersson
    Department of Molecular Evolution, University of Uppsala, Uppsala, Sweden
    Mol Biol Evol 18:829-39. 2001
    ....
  7. ncbi request reprint Evolutionary rates for tuf genes in endosymbionts of aphids
    E U Brynnel
    Department of Molecular Biology, Uppsala University, Sweden
    Mol Biol Evol 15:574-82. 1998
    ..We relate the observed differences in substitution frequencies to the absence of selective codon preferences in Buchnera and to the influence of Muller's ratchet on small asexual populations...
  8. ncbi request reprint Insights into the evolutionary process of genome degradation
    J O Andersson
    Department of Molecular Evolution, Uppsala University, Biomedical Center, Box 590, Uppsala, 751 24, Sweden
    Curr Opin Genet Dev 9:664-71. 1999
    ..The basic principles of gene degradation and elimination that are being explored in Rickettsia are likely to be of major importance for our understanding of how microbial genomes evolve...
  9. ncbi request reprint A phylogenetic analysis of the cytochrome b and cytochrome c oxidase I genes supports an origin of mitochondria from within the Rickettsiaceae
    T Sicheritz-Ponten
    Department of Molecular Biology, Uppsala University, Sweden
    Biochim Biophys Acta 1365:545-51. 1998
    ..We have estimated that the common ancestor of mitochondria and Rickettsiaceae dates back to more than 1500 million years ago...
  10. ncbi request reprint Mutualists and parasites: how to paint yourself into a (metabolic) corner
    I Tamas
    Department of Molecular Evolution, University of Uppsala, , S-752 36, Uppsala, Sweden
    FEBS Lett 498:135-9. 2001
    ..The presence of pseudogenes in both genomes provides examples of recent gene inactivation events and offers clues to the process of genome deterioration and host-cell adaptation...
  11. pmc A phylogenomic approach to microbial evolution
    T Sicheritz-Ponten
    Department of Molecular Evolution, Evolutionary Biology Center, Uppsala University, 752 36 Uppsala, Sweden
    Nucleic Acids Res 29:545-52. 2001
    ..The results have revealed a rich web of phylogenetic connections. However, the separation of Bacteria and Archaea into two separate domains remains robust...
  12. pmc A chimeric disposition of the elongation factor genes in Rickettsia prowazekii
    A C Syvanen
    Department of Molecular Biology, Biomedical Center, Uppsala University, Sweden
    J Bacteriol 178:6192-9. 1996
    ..coli. This atypical disposition of genes suggests that intrachromosomal recombination between duplicated tuf genes has contributed to the evolution of the unique genomic architecture of R. prowazekii...
  13. pmc Origin and evolution of the mitochondrial proteome
    C G Kurland
    Department of Molecular Evolution, Evolutionary Biology Centre, University of Uppsala, Uppsala SE 752 36, Lund University, Lund SE 223 62, Sweden
    Microbiol Mol Biol Rev 64:786-820. 2000
    ..There are no indications of a specific alpha-proteobacterial origin to genes for glycolysis. In the absence of data to the contrary, it is assumed that the ancestral host cell was a heterotroph...
  14. ncbi request reprint Determinative value of a portion of the nifH sequence for the genera Nostoc and Anabaena (cyanobacteria)
    I Tamas
    Department of Molecular Evolution, EBC, Uppsala University, Norbyvagen 18D, 752 36 Uppsala, Sweden
    Curr Microbiol 41:197-200. 2000
    ..The data suggest that the currently recognized genera Nostoc and Anabaena may in fact belong within a single, broadly defined genus...
  15. ncbi request reprint Codon usage and base composition in Rickettsia prowazekii
    S G Andersson
    Department of Molecular Biology, Uppsala University, Sweden
    J Mol Evol 42:525-36. 1996
    ..5% and 21.4%, respectively. Extrapolation from these values suggests that R. prowazekii has around 800 genes and that 60-70% of the genome may be coding...
  16. pmc Unusual organization of the rRNA genes in Rickettsia prowazekii
    S G Andersson
    Department of Molecular Biology, Uppsala University, Sweden
    J Bacteriol 177:4171-5. 1995
    ..In this organism, the 23S and the 5S rRNA genes are tightly linked to each other, whereas the 16S rRNA gene is separated from this cluster. The 23S-5S unit is preceded by the methionyl-tRNAfMet formyltransferase gene...
  17. ncbi request reprint Rickettsia prowazekii and Bartonella henselae: differences in the intracellular life styles revisited
    S G Andersson
    Department of Molecular Evolution, Evolutionary Biology Center, Uppsala University, Sweden
    Int J Med Microbiol 290:135-41. 2000
    ..prowazekii is more specialised to growth in an intracellular environment. Functional genomics will provide the potential to further resolve the genetic basis for successful human infections by these important parasites...
  18. pmc Detection of point mutations in rpoB gene of rifampin-resistant Rickettsia typhi
    J M Troyer
    Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore 21201, USA
    Antimicrob Agents Chemother 42:1845-6. 1998
    ..typhi were sequenced and compared. The Rif mutant rpoB had three nucleotide substitutions, which resulted in amino acid changes at residues 151, 201, and 271 and may be the basis for the rifampin resistance...