NDLI: The Endosymbiont Arsenophonus Provides a General Benefit to Soybean Aphid (Hemiptera: Aphididae) Regardless of Host Plant Resistance (Rag).

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The Endosymbiont Arsenophonus Provides a General Benefit to Soybean Aphid (Hemiptera: Aphididae) Regardless of Host Plant Resistance (Rag).

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Erratum. (Part 1)

Erratum. (Part 2)

Year: 2015 Volume: 44 Issue: 2

Year: 2015 Volume: 44 Issue: 1

Year: 2014 Volume: 43

Year: 2013 Volume: 42

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Year: 2011 Volume: 40

Year: 2010 Volume: 39

The Endosymbiont Arsenophonus Provides a General Benefit to Soybean Aphid (Hemiptera: Aphididae) Regardless of Host Plant Resistance (Rag).

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Wulff, Jason A. White, Jennifer A.
Description	Country affiliation: United States Author Affiliation: Wulff JA ( Department of Entomology, University of Kentucky, Lexington, KY 40546, USA. jason.wulff@ag.tamu.edu.); White JA ( Department of Entomology, University of Kentucky, Lexington, KY 40546, USA.)
Abstract	Soybean aphid, Aphis glycines Matsumura (Hemiptera: Aphididae), invokes substantial chemical treatment and economic cost in North America. Resistant soybean genotypes hold promise as a low-impact control methodology, but soybean aphid 'biotypes' capable of development on resistant soy cast doubt on the durability of soy resistance. We hypothesized that variation in soybean aphid ability to colonize resistant soy is partially attributable to a bacterial symbiont of soybean aphid, Arsenophonus. We used microinjection to manipulate Arsenophonus infection in both virulent and avirulent aphid biotypes, resulting in five pairs of infected versus uninfected isolines. These isolines were subjected to various population growth rate assays on resistant Rag versus susceptible soybean. We found that aphid virulence on Rag soybean was not dependent on Arsenophonus: virulent aphid biotypes performed well on Rag soybean, and avirulent aphid biotypes performed poorly on Rag soybean, regardless of whether Arsenophonus was present or not. However, we did find that Arsenophonus-infected clones on average performed significantly better than their paired uninfected isolines. This pattern was not consistently evident on every date for every clone, either in the population assays nor when we compared lifetime fecundity of individual aphids in a separate experiment. Nevertheless, this overall benefit for infected aphids may be sufficient to explain the high frequency of Arsenophonus infection in soybean aphids.
File Format	HTM / HTML
ISSN	0046225X
e-ISSN	19382936
Journal	Environmental Entomology
Issue Number	3
Volume Number	44
Language	English
Publisher	Oxford University Press
Publisher Date	2015-06-01
Publisher Place	Great Britain (UK)
Access Restriction	Open
Subject Keyword	Discipline Zoology Aphids Genetics Microbiology Enterobacteriaceae Soybeans Animals Genotype Population Growth Symbiosis Research Support, Non-u.s. Gov't Research Support, U.s. Gov't, Non-p.h.s.
Content Type	Text
Resource Type	Article
Subject	Ecology Ecology, Evolution, Behavior and Systematics Insect Science

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