ArticleProceedings of the National Academy of Sciences of the United States of America2000
Postsymbiotic plasmid acquisition and evolution of the repA1-replicon in Buchnera aphidicola.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2000. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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14 citing papers in PubMed, 52 citations in OpenAlex.
- Article
- Article
- New clues about the evolutionary history of metabolic losses in bacterial endosymbionts, provided by the genome of Buchnera aphidicola from the aphid Cinara tujafilina.Applied and environmental microbiology · 2011Article
- Remaining flexible in old alliances: functional plasticity in constrained mutualisms.DNA and cell biology · 2009Review
- Intense transpositional activity of insertion sequences in an ancient obligate endosymbiont.Molecular biology and evolution · 2008Article
- Lateral gene transfer between obligate intracellular bacteria: evidence from the Rickettsia massiliae genome.Genome research · 2007Article
- Compositional discordance between prokaryotic plasmids and host chromosomes.BMC genomics · 2006Article
- Metabolic interdependence of obligate intracellular bacteria and their insect hosts.Microbiology and molecular biology reviews : MMBR · 2004Review
- Evolution of the leucine gene cluster in Buchnera aphidicola: insights from chromosomal versions of the cluster.Journal of bacteriology · 2004Article
- A genomic perspective on nutrient provisioning by bacterial symbionts of insects.Proceedings of the National Academy of Sciences of the United States of America · 2003Article
- Molecular characterization of the leucine cluster in Buchnera sp. strain PSY, a primary endosymbiont of the aphid Pemphigus spyrothecae.Applied and environmental microbiology · 2002Article
- Extreme genome reduction in Buchnera spp.: toward the minimal genome needed for symbiotic life.Proceedings of the National Academy of Sciences of the United States of America · 2002Article
- Vertical transmission of biosynthetic plasmids in aphid endosymbionts (Buchnera).Journal of bacteriology · 2001Article
- Genome interdependence in insect-bacterium symbioses.Genome biology · 2001Review
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6 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Buchnera aphidicola is an obligate, strictly vertically transmitted, bacterial symbiont of aphids. It supplies its host with essential amino acids, nutrients required by aphids but deficient in their diet of plant phloem sap. Several lineages of Buchnera show adaptation to their nutritional role in the form of plasmid-mediated amplification of key-genes involved in the biosynthesis of tryptophan (trpEG) and leucine (leuABCD). Phylogenetic analyses of these plasmid-encoded functions have thus far suggested the absence of horizontal plasmid exchange among lineages of Buchnera. Here, we describe three new Buchnera plasmids, obtained from species of the aphid host families Lachnidae and Pemphigidae. All three plasmids belong to the repA1 family of Buchnera plasmids, which is characterized by the presence of a repA1-replicon responsible for replication initiation. A comprehensive analysis of this family of plasmids unexpectedly revealed significantly incongruent phylogenies for different plasmid and chromosomally encoded loci. We infer from these incongruencies a case of horizontal plasmid transfer in Buchnera. This process may have been mediated by secondary endosymbionts, which occasionally undergo horizontal transmission in aphids.
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