Genotype‐by‐Genotype Interactions Modified by a Third Species in a Plant‐Insect System

• Published in: The American naturalist 2007-09, Vol.170 (3), p.492-499
• Main Authors: Tétard‐Jones, Catherine, Kertesz, Michael A., Gallois, Patrick, Preziosi, Richard F.
• Format: Article
• Language: English
• Subjects: Animal and plant ecology; Animal, plant and microbial ecology; Animals; Aphididae; Aphids - physiology; Barley; Biological and medical sciences; Cereals; Communities; Ecological genetics; Ecology; Ecosystems; Fundamental and applied biological sciences. Psychology; General aspects; Genetic Variation; Genetics; Genotype; Genotype & phenotype; Genotypes; Hordeum - microbiology; Hordeum - physiology; Hordeum vulgare; Insecta; Invertebrates; Phenotype; Plant growth; Plant growth promoting rhizobacteria; Plant interaction; Plants; Pseudomonas aeruginosa - physiology; Rhizome - microbiology; Species
• ISSN: 0003-0147; 1537-5323
• DOI: 10.1086/520115

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., \documentclass{aastex} \usepackage{amsbsy} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{bm} \usepackage{mathrsfs} \usepackage{pifont} \usepackage{stmaryrd} \usepackage{textcomp} \usepackage{portland,xspace} \usepackage{amsmath,amsxtra} \usepackage[OT2,OT1]{fontenc} \newcommand\cyr{ \renewcommand\rmdefault{wncyr} \renewcommand\sfdefault{wncyss} \renewcommand\encodingdefault{OT2} \normalfont \selectfont} \DeclareTextFontCommand{\textcyr}{\cyr} \pagestyle{empty} \DeclareMathSizes{10}{9}{7}{6} \begin{document} \landscape $\mathrm{genotype}\,\times \mathrm{genotype}\,\times \mathrm{environment}\,$ \end{document} [ \documentclass{aastex} \usepackage{amsbsy} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{bm} \usepackage{mathrsfs} \usepackage{pifont} \usepackage{stmaryrd} \usepackage{textcomp} \usepackage{portland,xspace} \usepackage{amsmath,amsxtra} \usepackage[OT2,OT1]{fontenc} \newcommand\cyr{ \renewcommand\rmdefault{wncyr} \renewcommand\sfdefault{wncyss} \renewcommand\encodingdefault{OT2} \normalfont \selectfont} \DeclareTextFontCommand{\textcyr}{\cyr} \pagestyle{empty} \DeclareMathSizes{10}{9}{7}{6} \begin{document} \landscape $\mathrm{G}\,\times \mathrm{G}\,\times \mathrm{E}\,$ \end{document} ] 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 \documentclass{aastex} \usepackage{amsbsy} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{bm} \usepackage{mathrsfs} \usepackage{pifont} \usepackage{stmaryrd} \usepackage{textcomp} \usepackage{portland,xspace} \usepackage{amsmath,amsxtra} \usepackage[OT2,OT1]{fontenc} \newcommand\cyr{ \renewcommand\rmdefault{wncyr} \renewcommand\sfdefault{wncyss} \renewcommand\encodingdefault{OT2} \normalfont \selectfont} \DeclareTextFontCommand{\textcyr}{\cyr} \pagestyle{empty} \DeclareMathSizes{10}{9}{7}{6} \begin{document} \landscape $\mathrm{G}\,\times \mathrm{G}\,\times \mathrm{E}\,$ \end{document} interaction,