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Allopatric genetic origins for sympatric host-plant shifts and race formation in Rhagoletis
Tephritid fruit flies belonging to the Rhagoletis pomonella sibling species complex are controversial because they have been proposed to diverge in sympatry (in the absence of geographic isolation)Expand
Evidence for inversion polymorphism related to sympatric host race formation in the apple maggot fly, Rhagoletis pomonella.
Evidence suggests that the apple maggot, Rhagoletis pomonella (Diptera: Tephritidae) is undergoing sympatric speciation (i.e., divergence without geographic isolation) in the process of shifting andExpand
Natural selection and sympatric divergence in the apple maggot Rhagoletis pomonella
In On the Origin of Species, Darwin proposed that natural selection had a fundamental role in speciation. But this view receded during the Modern Synthesis when allopatric (geographic) models ofExpand
Mayr, Dobzhansky, and Bush and the complexities of sympatric speciation in Rhagoletis
The Rhagoletis pomonella sibling species complex is a model for sympatric speciation by means of host plant shifting. However, genetic variation aiding the sympatric radiation of the group in theExpand
Herbivorous Insects: Model Systems for the Comparative Study of Speciation Ecology
Does ecological divergence drive species-level evolutionary diversification? How so and to what degree? These questions were central to the thinking of the evolutionary synthesis. Only recently,Expand
Herbivorous insects: model systems for the comparative study of speciation ecology.
Does ecological divergence drive species-level evolutionary diversification? How so and to what degree? These questions were central to the thinking of the evolutionary synthesis. Only recently,Expand
The diapause response of Rhagoletis pomonella to varying environmental conditions and its significance for geographic and host plant‐related adaptation
The recent shift of Rhagoletis pomonella Walsh (Diptera: Tephritidae) from its ancestral host hawthorn to apple is a model for incipient sympatric speciation in action. Previous studies have shownExpand
It’s about time: the evidence for host plant-mediated selection in the apple maggot fly, Rhagoletis pomonella , and its implications for fitness trade-offs in phytophagous insects
The apple maggot fly, Rhagoletis pomonella, Walsh (Diptera: Tephritidae), provides a unique opportunity to address the issue of host-related fitness trade-offs for phytophagous insects. RhagoletisExpand
A FIELD TEST FOR HOST‐PLANT DEPENDENT SELECTION ON LARVAE OF THE APPLE MAGGOT FLY, RHAGOLETIS POMONELLA
Host‐plant dependent fitness trade‐offs refer to traits that enhance the performance of an insect on one plant species to its detriment on others. Such trade‐offs are central to models of sympatricExpand
Effects of Photoperiod and Light Intensity on the Genetics of Diapause in the Apple Maggot (Diptera: Tephritidae)
Abstract Rhagoletis pomonella (Walsh) is an important pest of apples and has been at the center of a long-standing debate concerning modes of speciation. The fly has been proposed to speciate withoutExpand
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