BIOLOGY OF BACTERIOCYTE-ASSOCIATED ENDOSYMBIONTS OF PLANT SAP-SUCKING INSECTS
- 1 October 2005
- journal article
- review article
- Published by Annual Reviews in Annual Review of Microbiology
- Vol. 59 (1), 155-189
- https://doi.org/10.1146/annurev.micro.59.030804.121041
Abstract
Psyllids, whiteflies, aphids, and mealybugs are members of the suborder Sternorrhyncha and share a common property, namely the utilization of plant sap as their food source. Each of these insect groups has an obligatory association with a different prokaryotic endosymbiont, and the association is the result of a single infection followed by maternal, vertical transmission of the endosymbionts. The result of this association is the domestication of the free-living bacterium to serve the purposes of the host, namely the synthesis of essential amino acids. This domestication is probably in all cases accompanied by a major reduction in genome size. The different properties of the genomes and fragments of the genomes of these endosymbionts suggest that there are different constraints on the permissible evolutionary changes that are probably a function of the gene repertoire of the endosymbiont ancestor and the gene losses that occurred during the reduction of genome size. Pel piacer di porle in lista. Leporello Because Annushka has already bought the sunflower oil, and not only bought it, but spilled it too. Master and MargaritaKeywords
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