Document Detail

Genomic insight into the amino acid relations of the pea aphid, Acyrthosiphon pisum, with its symbiotic bacterium Buchnera aphidicola.
MedLine Citation:
PMID:  20482655     Owner:  NLM     Status:  MEDLINE    
The pea aphid genome includes 66 genes contributing to amino acid biosynthesis and 93 genes to amino acid degradation. In several respects, the pea aphid gene inventory complements that of its symbiotic bacterium, Buchnera aphidicola (Buchnera APS). Unlike other insects with completely sequenced genomes, the pea aphid lacks the capacity to synthesize arginine, which is produced by Buchnera APS. However, consistent with other insects, it has genes coding for individual reactions in essential amino acid biosynthesis, including threonine dehydratase and branched-chain amino acid aminotransferase, which are not coded in the Buchnera APS genome. Overall the genome data suggest that the biosynthesis of certain essential amino acids is shared between the pea aphid and Buchnera APS, providing the opportunity for precise aphid control over Buchnera metabolism.
A C C Wilson; P D Ashton; F Calevro; H Charles; S Colella; G Febvay; G Jander; P F Kushlan; S J Macdonald; J F Schwartz; G H Thomas; A E Douglas
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.    
Journal Detail:
Title:  Insect molecular biology     Volume:  19 Suppl 2     ISSN:  1365-2583     ISO Abbreviation:  Insect Mol. Biol.     Publication Date:  2010 Mar 
Date Detail:
Created Date:  2010-05-20     Completed Date:  2010-09-02     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9303579     Medline TA:  Insect Mol Biol     Country:  England    
Other Details:
Languages:  eng     Pagination:  249-58     Citation Subset:  IM    
Department of Biology, University of Miami, Coral Gables, FL 33146, USA. <>
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MeSH Terms
Amino Acids / biosynthesis,  metabolism*
Aphids / genetics*,  metabolism*,  microbiology
Bacterial Proteins / genetics,  metabolism
Buchnera / genetics*,  metabolism*
Genetic Complementation Test
Genome, Bacterial*
Genome, Insect*
Insect Proteins / genetics,  metabolism
Models, Biological
Peas / parasitology
Symbiosis / genetics,  physiology
Transaminases / genetics,  metabolism
Grant Support
BB/F005342/1//Biotechnology and Biological Sciences Research Council
Reg. No./Substance:
0/Amino Acids; 0/Bacterial Proteins; 0/Insect Proteins; EC 2.6.1.-/Transaminases

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