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7 results for “Eurosta solidaginis”
A geographic mosaic of coevolution between Eurosta solidaginis (Fitch) and its host plant tall goldenrod Solidago altissima (L.)
<p>A geographic mosaic of coevolution has produced local reciprocal adaptation in tall goldenrod, <i>Solidago altissima</i> (L.), and the goldenrod ball gall fly, <i>Eurosta solidaginis</i> (Fitch 1855). The fly is selected to induce gall diameters that minimize mortality from natural enemies, and the plant is selected to limit gall growth that reduces plant fitness. We conducted a double reciprocal transplant experiment where <i>S. altissima</i> and <i>E. solidaginis</i> from three sites were grown in gardens at each site to partition the gall morphology variation into fly genotype, plant genotype, and the environment components. The host plant gall diameter induced by each <i>E. solidaginis</i> population was adapted to inhibit local natural enemies from ovipositing on or consuming enclosed larvae. Reciprocally, increasing the gall size induced by the local fly population increased the resistance of the local plant host population to gall growth. Differences among sites in natural enemies produced a mosaic of hotspots of coevolutionary arms races between flies selecting for greater gall diameter and plants for smaller diameters, and coldspots where there is no selection on plant or fly for a change in gall diameter. In contrast, the geographic variations of gall length and gall shape were not due to coevolutionary interactions.</p>
A geographic mosaic of coevolution between Eurosta solidaginis (Fitch) and its host plant tall goldenrod Solidago altissima (L.)
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Data from: Distribution of the specialist aphid Uroleucon nigrotuberculatum (Homoptera: Aphididae) in response to host plant semiochemical induction by the gall fly Eurosta solidaginis (Diptera: Tephritidae)
Many plants use terpenoids and other volatile compounds as semiochemicals. Reception of plant volatiles by conspecifics may trigger a defensive phytochemical response. These same compounds can also function as host recognition signals for phytophagous insects. In this experiment we find that when the specialist gall-forming fly Eurosta solidaginis attacks its tall goldenrod (Solidago altissima) host plant, the fly indirectly induces a phytochemical response in nearby tall goldenrod plants. This phytochemical response may, in turn, act as a positive signal attracting the goldenrod specialist aphid Uroleucon nigrotuberculatum. Laboratory based experiments exposing ungalled tall goldenrod plants to the volatiles released by E. solidaginis galls demonstrated a consistent increase in foliar terpenoid concentrations in ungalled plants. Analysis of tall goldenrod stem and gall tissue chemistry revealed induction of terpenoids in gall tissue, with a simultaneous decrease in green leaf volatile concentrations. Field experiments demonstrated a consistent spatial relationship in tall goldenrod foliar terpenoid concentrations with distance from an E. solidaginis gall. Both laboratory and field experiments establish consistent induction of the terpene β-farnesene, and that this compound is a strong positive predictor of U. nigrotuberculatum aphid presence on goldenrod plants along with plant biomass and several other foliar terpenoids. These findings suggest E. solidaginis induced phytochemistry, especially β-farnesene, may be acting as a kairomone, driving aphid distribution in the field.
Eurosta solidaginis SPAdes preassembly
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Eurosta solidaginis decontaminated FSCR
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Eurosta solidaginis decontaminated gx
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Data from: Distribution of the specialist aphid Uroleucon nigrotuberculatum (Homoptera: Aphididae) in response to host plant semiochemical induction by the gall fly Eurosta solidaginis (Diptera: Tephritidae)
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