Genotype-by-Genotype Interactions Modified by a Third Species in a Plant-Insect System
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- Dr Catherine Tetard-Jones
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| Author(s) | | Tetard-Jones C, Kertesz MA, Gallois P, Preziosi RF |
| Publication type | | Article |
| Journal | | American Naturalist |
| Year | | 2007 |
| Volume | | 170 |
| Issue | | 3 |
| Pages | | 492-499 |
| ISSN (print) | | 0003-0147 |
| ISSN (electronic) | | 1537-5323 |
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| Full text is available for this publication: |
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| Community genetics examines how genotypic variation within a species influences the associated ecological community. The inclusion of additional environmental and genotypic factors is a natural extension of the current community genetics framework. However, the extent to which the presence of and genetic variation in associated species influences interspecific interactions (i.e., genotype x genotype x environment [G x G x E] interactions) has been largely ignored. We used a community genetics approach to study the interaction of barley and aphids in the absence and presence of rhizosphere bacteria. We designed a matrix of aphid genotype and barley genotype combinations and found a significant G x G x E interaction, indicating that the barley-aphid interaction is dependent on the genotypes of the interacting species as well as the biotic environment. We discuss the consequences of the strong G x G x E interaction found in our study in relation to its impact on the study of species interactions in a community context. |
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| Publisher | | University of Chicago Press |
| URL | | http://dx.doi.org/10.1086/520115 |
| DOI | | 10.1086/520115 |
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