ENDOSYMBIONTS (BUCHNERA) OF THE APHID UROLEUCON SONCHI CONTAIN PLASMIDS WITH TRPEG AND REMNANTS OF TRPE PSEUDOGENES

Citation
L. Baumann et al., ENDOSYMBIONTS (BUCHNERA) OF THE APHID UROLEUCON SONCHI CONTAIN PLASMIDS WITH TRPEG AND REMNANTS OF TRPE PSEUDOGENES, Current microbiology, 35(1), 1997, pp. 18-21
Citations number
17
Categorie Soggetti
Microbiology
Journal title
ISSN journal
03438651
Volume
35
Issue
1
Year of publication
1997
Pages
18 - 21
Database
ISI
SICI code
0343-8651(1997)35:1<18:E(OTAU>2.0.ZU;2-7
Abstract
The aphid Uroleucon sonchi contains a prokaryotic endosymbiont (Buchne ra) with plasmids having trpEG as well as remnants of trpE pseudogenes . In this respect it resembles Buchnera from the aphid Diurcaphis noxi a. Phylogenetic trees based on trpE (plasmid gene) and trpB (chromosom al genes) from eight species of aphids are congruent, indicating a lac k of exchange of plasmids among endosymbionts from different aphid spe cies.