Co-evolution and symbiont replacement shaped the symbiosis between adelgids (Hemiptera: Adelgidae) and their bacterial symbionts.

Environmental Microbiology
Elena R ToenshoffMatthias Horn

Abstract

The Adelgidae (Insecta: Hemiptera), a small group of insects, are known as severe pests on various conifers of the northern hemisphere. Despite of this, little is known about their bacteriocyte-associated endosymbionts, which are generally important for the biology and ecology of plant sap-sucking insects. Here, we investigated the adelgid species complexes Adelges laricis/tardus, Adelges abietis/viridis and Adelges cooleyi/coweni, identified based on their coI and ef1alpha genes. Each of these insect groups harboured two phylogenetically different bacteriocyte-associated symbionts belonging to the Betaproteobacteria and the Gammaproteobacteria, respectively, as inferred from phylogenetic analyses of 16S rRNA gene sequences and demonstrated by fluorescence in situ hybridization. The betaproteobacterial symbionts of all three adelgid complexes ('Candidatus Vallotia tarda', 'Candidatus Vallotia virida' and 'Candidatus Vallotia cooleyia') share a common ancestor and show a phylogeny congruent with that of their respective hosts. Similarly, there is evidence for co-evolution between the gammaproteobacterial symbionts ('Candidatus Profftia tarda', 'Candidatus Profftia virida') and A. laricis/tardus and A. abietis/viridis. In contras...Continue Reading

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Citations

Feb 26, 2015·Proceedings of the National Academy of Sciences of the United States of America·Gordon M Bennett, Nancy A Moran
Dec 17, 2015·ZooKeys·Colin FavretBenjamin Victor
Nov 1, 2016·Nature Reviews. Microbiology·Angela E Douglas
Dec 8, 2016·International Journal of Systematic and Evolutionary Microbiology·Aharon Oren
Jan 10, 2014·The ISME Journal·Ryuichi Koga, Nancy A Moran
Jan 25, 2018·The ISME Journal·Rebecca A Chong, Nancy A Moran
Nov 26, 2013·Applied and Environmental Microbiology·Elena R ToenshoffMatthias Horn
Jul 1, 2020·International Journal of Systematic and Evolutionary Microbiology·Aharon OrenMartha E Trujillo
Jun 19, 2017·Journal of Theoretical Biology·Patrick J Keeling, John P McCutcheon

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