| Only helpful when required: a longevity cost of harbouring defensive symbionts. | |
| | |
MedLine Citation:
|
PMID: 21569156 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
|
Maternally transmitted symbionts can spread in host populations if they provide a fitness benefit to their hosts. Hamiltonella defensa, a bacterial endosymbiont of aphids, protects hosts against parasitoids but only occurs at moderate frequencies in most aphid populations. This suggests that harbouring this symbiont is also associated with costs, yet the nature of these costs has remained elusive. Here, we demonstrate an important and clearly defined cost: reduced longevity. Experimental infections with six different isolates of H. defensa caused strongly reduced lifespans in two different clones of the black bean aphid, Aphis fabae, resulting in a significantly lower lifetime reproduction. However, the two aphid clones were unequally affected by the presence of H. defensa, and the magnitude of the longevity cost was further determined by genotype × genotype interactions between host and symbiont, which has important consequences for their coevolution. |
| | |
Authors:
|
C Vorburger; A Gouskov |
Related Documents
:
|
6847946 - Bedside determination of aminoglycoside therapy in the patient with renal insufficiency. 6547966 - Resolution of multiple fluorescence lifetimes in heterogeneous systems by phase-modulat... 2621036 - Incidence density matching with a simple sas computer program. 3754736 - A simple basic computer program to individualize the srk formula. 21057596 - Using community-based participatory research to adapt keepin' it real: creating a socia... 20841066 - Condom use behavior: an assessment of united states college students' health education ... |
Publication Detail:
|
Type: JOURNAL ARTICLE Date: 2011-5-13 |
Journal Detail:
|
Title: Journal of evolutionary biology Volume: - ISSN: 1420-9101 ISO Abbreviation: - Publication Date: 2011 May |
Date Detail:
|
Created Date: 2011-5-16 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 8809954 Medline TA: J Evol Biol Country: - |
Other Details:
|
Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
|
© 2011 The Authors. Journal of Evolutionary Biology © 2011 European Society For Evolutionary Biology. |
Affiliation:
|
Institute of Integrative Biology, ETH Zürich, Zürich, Switzerland EAWAG, Swiss Federal Institute of Aquatic Science and Technology, Dübendorf, Switzerland Institute of Evolutionary Biology and Environmental Studies, University of Zürich, Zürich, Switzerland. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: The decoupling between genetic structure and metabolic phenotypes in Escherichia coli leads to conti...
Next Document: Adjustment of sperm allocation under high risk of sperm competition across taxa: a meta-analysis.