Fruit odor discrimination and sympatric host race formation in Rhagoletis

@article{Linn2003FruitOD,
  title={Fruit odor discrimination and sympatric host race formation in Rhagoletis},
  author={Charles E. Linn and Jeffrey L. Feder and Satoshi Nojima and Hattie R. Dambroski and Stewart H. Berlocher and Wendell L. Roelofs},
  journal={Proceedings of the National Academy of Sciences of the United States of America},
  year={2003},
  volume={100},
  pages={11490 - 11493}
}
  • C. Linn, J. Feder, +3 authors W. Roelofs
  • Published 2003
  • Biology, Medicine
  • Proceedings of the National Academy of Sciences of the United States of America
Rhagoletis pomonella is a model for incipient sympatric speciation (divergence without geographic isolation) by host-plant shifts. Here, we show that historically derived apple- and ancestral hawthorn-infesting host races of the fly use fruit odor as a key olfactory cue to help distinguish between their respective plants. In flight-tunnel assays and field tests, apple and hawthorn flies preferentially oriented to, and were captured with, chemical blends of their natal fruit volatiles. Because R… Expand
Divergent preferences of Rhagoletis pomonella host races for olfactory and visual fruit cues
TLDR
Four key findings emerged from the study: both olfactory and visual cues increased host discrimination of apple and hawthorn flies for their respective natal fruit, the presence of a single appropriate volatile blend on a natal or non‐natal visual model generally increased the ability of flies to discriminate for their natal Fruit. Expand
Postzygotic isolating factor in sympatric speciation in Rhagoletis flies: reduced response of hybrids to parental host-fruit odors.
TLDR
It is reported that reciprocal F(1) hybrids between the apple and hawthorn host races of R. pomonella do not respond to host fruit volatiles in wind-tunnel assays at doses that elicit maximal directed flight in parental flies, suggesting that hybrids might suffer a fitness disadvantage for finding fruit in nature. Expand
THE GENETIC BASIS FOR FRUIT ODOR DISCRIMINATION IN RHAGOLETIS FLIES AND ITS SIGNIFICANCE FOR SYMPATRIC HOST SHIFTS
TLDR
A strong bias was observed for F2 and backcross flies to orient to the natal fruit blend of their maternal grandmother, implying the existence of cytonuclear gene interactions, and the implications for the evolutionary dynamics of sympatric host race formation and speciation are explored. Expand
THE GENETIC BASIS FOR FRUIT ODOR DISCRIMINATION IN RHAGOLETIS FLIES AND ITS SIGNIFICANCE FOR SYMPATRIC HOST SHIFTS
Rhagoletis pomonella (Diptera: Tephritidae) use volatile compounds emitted from the surface of ripening fruit as important chemosensory cues for recognizing and distinguishing among alternative hostExpand
BEHAVIORAL EVIDENCE FOR FRUIT ODOR DISCRIMINATION AND SYMPATRIC HOST RACES OF RHAGOLETIS POMONELLA FLIES IN THE WESTERN UNITED STATES
TLDR
It is reported that western apple, black hawthorns, and ornamental hawthorn flies showed significantly increased levels of upwind‐directed flight to their respective natal compared to nonnatal fruit volatile blends, consistent with host race status. Expand
The role of diapause and host fruit odor preference in sympatric race formation of Rhagoletis pomonella.
TLDR
The evidence suggests the genetic architecture of diapause and fruit odor discrimination is complicated but resolves that both traits serve as preand post-mating barriers to gene flow. Expand
Sensory specificity and speciation: a potential neuronal pathway for host fruit odour discrimination in Rhagoletis pomonella
TLDR
The finding that two colocalized OSN pairs were found that specifically responded to the major behavioural attractant and antagonist volatiles for each fly population supports the hypothesis that relatively minor changes in olfactory sensory pathways may contribute to rapid host shifting and divergence in Rhagoletis. Expand
A reversal in sensory processing accompanies ongoing ecological divergence and speciation in Rhagoletis pomonella
TLDR
A reversal between apple and hawthorn flies in the sensory processing of key odours associated with host fruit preference at the first olfactory synapse is found, linking changes in the antennal lobe of the brain with ongoing ecological divergence. Expand
Speciation in the apple maggot fly: a blend of vintages?
TLDR
Results show that adaptation to apple populations has involved both the sorting of ancestral adaptive variation and the selection of novel mutations, and new evidence for the very recent evolution of a derived preference for volatile chemicals that are typical of apple fruits among apple-feeding flies. Expand
Identification of Host Fruit Volatiles from Three Mayhaw Species (Crataegus Series Aestivales) Attractive to Mayhaw-Origin Rhagoletis pomonella Flies in the Southern United States
TLDR
The results discount the possibility that the apple fly was “pre-assembled” and originated via a recent introduction of southern mayhaw flies predisposed to accepting apple, and are consistent with the possibility ofSouthern mayhaw-infesting fly host races. Expand
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 30 REFERENCES
Genetic differentiation between sympatric host races of the apple maggot fly Rhagoletis pomonella
TLDR
The result confirms that hawthorn and apple flies represent partially reproductively isolated 'host races' and is consistent with a sympatric mode of divergence for these flies. Expand
Host fidelity is an effective premating barrier between sympatric races of the apple maggot fly.
TLDR
The results verify that host-associated adaptation can produce reproductive isolation as a correlated character (a key premise of sympatric speciation) and represents one of the few or perhaps only example in animals where the intra-specific isolating effects of specific phenotypes have been quantified in nature. Expand
Genetic differences between host races of Rhagoletis pomonella
TLDR
Significant differences in allele frequencies between fly populations reared from sympatric apple and hawthorn trees at a field site in Urbana, Illinois, in the United States are reported. Expand
Gene frequency clines for host races of Rhagoletis pomonella in the Midwestern United States
TLDR
The results indicate that host associated races can form in sympatry and implicate differences in host plant recognition and developmental timing as key factors restricting gene flow between apple and hawthorn populations. Expand
MULTILOCUS MODELS OF SYMPATRIC SPECIATION: BUSH VERSUS RICE VERSUS FELSENSTEIN
  • J. D. Fry
  • Biology, Medicine
  • Evolution; international journal of organic evolution
  • 2003
TLDR
Documenting instances of sympatric species that are reproductively isolated only by host or habitat preference would provide evidence for the plausibility of symp atric speciation in nature. Expand
Attraction of Apple Maggot Flies to Odor of Apples
TLDR
The potential utility of the unidentified attractive component(s) of the fruit odor in development of improved devices for monitoring fly populations and new, integrated methods of population management are discussed. Expand
Sympatric speciation in phytophagous insects: moving beyond controversy?
TLDR
The evidence for sympatric speciation via host shifting for phytophagous insects is reviewed and a set of testable predictions for distinguishing geographic mode (allopatric versus sympatrics) of divergence are proposed. Expand
RADIATION AND DIVERGENCE IN THE RHAGOLETIS POMONELLA SPECIES GROUP: INFERENCES FROM ALLOZYMES
  • S. Berlocher
  • Biology, Medicine
  • Evolution; international journal of organic evolution
  • 2000
TLDR
The first extensive analysis of genetic divergence in the Rhagoletis pomonella group, including all known taxa/populations except the allopatric Mexican population of R. pom onella, is presented, and the phylogenetic placement of the flowering dogwood fly differed depending on whether a molecular clock was assumed (UPGMA of Nei distance) or not assumed (frequency parsimony) for tree building. Expand
MATING BEHAVIOR IN RHAGOLETIS POMONELLA (DIPTERA: TEPHRITIDAE): II. TEMPORAL ORGANIZATION
TLDR
It is concluded that sexually mature apple maggot flies may assemble on the fruit, mate, and oviposit whenever temperature is favorable and light intensity is sufficient to permit adequate vision. Expand
A FIELD TEST OF DIFFERENTIAL HOST‐PLANT USAGE BETWEEN TWO SIBLING SPECIES OF RHAGOLETIS POMONELLA FRUIT FLIES (DIPTERA: TEPHRITIDAE) AND ITS CONSEQUENCES FOR SYMPATRIC MODELS OF SPECIATION
  • J. Feder, G. Bush
  • Biology, Medicine
  • Evolution; international journal of organic evolution
  • 1989
TLDR
The evolution of aposematic coloration in distasteful prey: A family model and the role of Aeolid nudibranchs as predators and prey are studied. Expand
...
1
2
3
...