W E Bradshaw

Summary

Affiliation: University of Oregon
Country: USA

Publications

  1. ncbi request reprint Circadian rhythmicity and photoperiodism in the pitcher-plant mosquito: adaptive response to the photic environment or correlated response to the seasonal environment?
    W E Bradshaw
    Center for Ecology and Evolutionary Biology, University of Oregon, Eugene, Oregon 97403 5289, USA
    Am Nat 161:735-48. 2003
  2. ncbi request reprint The contribution of an hourglass timer to the evolution of photoperiodic response in the pitcher-plant mosquito, Wyeomyia smithii
    W E Bradshaw
    Center for Ecology and Evolutionary Biology, 5289 University of Oregon, Eugene, Oregon 97403 5289, USA
    Evolution 57:2342-9. 2003
  3. ncbi request reprint Adaptation to temperate climates
    William E Bradshaw
    Center for Ecology and Evolutionary Biology, University of Oregon, Eugene, Oregon 97403 5289, USA
    Evolution 58:1748-62. 2004
  4. ncbi request reprint Circadian rhythmicity and photoperiodism in the pitcher-plant mosquito: can the seasonal timer evolve independently of the circadian clock?
    W E Bradshaw
    Center for Ecology and Evolutionary Biology, University of Oregon, Eugene, Oregon 97403, USA
    Am Nat 167:601-5. 2006
  5. pmc Genetic shift in photoperiodic response correlated with global warming
    W E Bradshaw
    Ecology and Evolution Program, Department of Biology, University of Oregon, Eugene, OR 97403 1210, USA
    Proc Natl Acad Sci U S A 98:14509-11. 2001
  6. doi request reprint Geography of the circadian gene clock and photoperiodic response in western North American populations of the three-spined stickleback Gasterosteus aculeatus
    C O'BRIEN
    Institute of Ecology and Evolution, 5289 University of Oregon, Eugene, OR 97403 5289, USA
    J Fish Biol 82:827-39. 2013
  7. ncbi request reprint Genetic response to rapid climate change: it's seasonal timing that matters
    W E Bradshaw
    Center for Ecology and Evolutionary Biology, University of Oregon, Eugene, OR 97403 5289, USA
    Mol Ecol 17:157-66. 2008
  8. pmc Epistasis underlying a fitness trait within a natural population of the pitcher-plant mosquito, Wyeomyia smithii
    William E Bradshaw
    Center for Ecology and Evolutionary Biology, University of Oregon, Eugene, Oregon 97403 5289, USA
    Genetics 169:485-8. 2005
  9. pmc Genetic correlations and the evolution of photoperiodic time measurement within a local population of the pitcher-plant mosquito, Wyeomyia smithii
    W E Bradshaw
    Institute of Ecology and Evolution, University of Oregon, Eugene, OR 97403 5289, USA
    Heredity (Edinb) 108:473-9. 2012
  10. ncbi request reprint Geographic variation and the evolution of reproductive allocation in the pitcher-plant mosquito, Wyeomyia smithii
    P Armbruster
    Department of Biology, University of Oregon, Eugene 97402 1210, USA
    Evolution 55:439-44. 2001

Collaborators

Detail Information

Publications26

  1. ncbi request reprint Circadian rhythmicity and photoperiodism in the pitcher-plant mosquito: adaptive response to the photic environment or correlated response to the seasonal environment?
    W E Bradshaw
    Center for Ecology and Evolutionary Biology, University of Oregon, Eugene, Oregon 97403 5289, USA
    Am Nat 161:735-48. 2003
    ..We conclude that expression of the circadian clock is necessary neither for the central mechanism of photoperiodic time measurement nor for the adaptive modification of critical photoperiod...
  2. ncbi request reprint The contribution of an hourglass timer to the evolution of photoperiodic response in the pitcher-plant mosquito, Wyeomyia smithii
    W E Bradshaw
    Center for Ecology and Evolutionary Biology, 5289 University of Oregon, Eugene, Oregon 97403 5289, USA
    Evolution 57:2342-9. 2003
    ....
  3. ncbi request reprint Adaptation to temperate climates
    William E Bradshaw
    Center for Ecology and Evolutionary Biology, University of Oregon, Eugene, Oregon 97403 5289, USA
    Evolution 58:1748-62. 2004
    ....
  4. ncbi request reprint Circadian rhythmicity and photoperiodism in the pitcher-plant mosquito: can the seasonal timer evolve independently of the circadian clock?
    W E Bradshaw
    Center for Ecology and Evolutionary Biology, University of Oregon, Eugene, Oregon 97403, USA
    Am Nat 167:601-5. 2006
    ..We conclude that the photoperiodic timing of seasonal events can evolve independently of the daily circadian clock...
  5. pmc Genetic shift in photoperiodic response correlated with global warming
    W E Bradshaw
    Ecology and Evolution Program, Department of Biology, University of Oregon, Eugene, OR 97403 1210, USA
    Proc Natl Acad Sci U S A 98:14509-11. 2001
    ..W. smithii represents an example of actual genetic differentiation of a seasonality trait that is consistent with an adaptive evolutionary response to recent global warming...
  6. doi request reprint Geography of the circadian gene clock and photoperiodic response in western North American populations of the three-spined stickleback Gasterosteus aculeatus
    C O'BRIEN
    Institute of Ecology and Evolution, 5289 University of Oregon, Eugene, OR 97403 5289, USA
    J Fish Biol 82:827-39. 2013
    ..Hence, caution is urged when interpreting variation in the polyglutamine repeat (PolyQ) domain of the gene clock in the context of seasonal activities or in relationship to photoperiodism along geographical gradients...
  7. ncbi request reprint Genetic response to rapid climate change: it's seasonal timing that matters
    W E Bradshaw
    Center for Ecology and Evolutionary Biology, University of Oregon, Eugene, OR 97403 5289, USA
    Mol Ecol 17:157-66. 2008
    ....
  8. pmc Epistasis underlying a fitness trait within a natural population of the pitcher-plant mosquito, Wyeomyia smithii
    William E Bradshaw
    Center for Ecology and Evolutionary Biology, University of Oregon, Eugene, Oregon 97403 5289, USA
    Genetics 169:485-8. 2005
    ..Line crosses reveal that there exists within a population, diverse epistatic variation for a fitness trait that could contribute to adaptive potential following founder events or rapid climate change...
  9. pmc Genetic correlations and the evolution of photoperiodic time measurement within a local population of the pitcher-plant mosquito, Wyeomyia smithii
    W E Bradshaw
    Institute of Ecology and Evolution, University of Oregon, Eugene, OR 97403 5289, USA
    Heredity (Edinb) 108:473-9. 2012
    ....
  10. ncbi request reprint Geographic variation and the evolution of reproductive allocation in the pitcher-plant mosquito, Wyeomyia smithii
    P Armbruster
    Department of Biology, University of Oregon, Eugene 97402 1210, USA
    Evolution 55:439-44. 2001
    ..These results implicate temperature as a selective factor influencing the geographic variation of egg size in W. smithii, and demonstrate a novel trade-off in reproductive allocation between egg size and egg maturation time...
  11. ncbi request reprint Reproductive value in a complex life cycle: heat tolerance of the pitcher-plant mosquito, Wyeomyia smithii
    P A Zani
    Center for Ecology and Evolutionary Biology, University of Oregon, Eugene, OR, USA
    J Evol Biol 18:101-5. 2005
    ..Consequently, reproductive value appears to have been of little consequence in the evolution of stage-specific tolerance of heat stress in W. smithii...
  12. ncbi request reprint Geographic and developmental variation in expression of the circadian rhythm gene, timeless, in the pitcher-plant mosquito, Wyeomyia smithii
    D Mathias
    Center for Ecology and Evolutionary Biology, University of Oregon, Eugene, OR 97403 5289, USA
    J Insect Physiol 51:661-7. 2005
    ....
  13. doi request reprint Concordance of the circadian clock with the environment is necessary to maximize fitness in natural populations
    Kevin J Emerson
    Center for Ecology and Evolutionary Biology, University of Oregon, Eugene, Oregon 97403, USA
    Evolution 62:979-83. 2008
    ....
  14. doi request reprint What season is it anyway? Circadian tracking vs. photoperiodic anticipation in insects
    William E Bradshaw
    Center for Ecology and Evolutionary Biology, University of Oregon, Eugene, Oregon 97403 5289, USA
    J Biol Rhythms 25:155-65. 2010
    ..Finally, the authors propose that circadian-unbiased, forward genetic approaches should be used to identify genes involved in photoperiodism within extant populations and among populations over evolutionary time...
  15. pmc Microarrays reveal early transcriptional events during the termination of larval diapause in natural populations of the mosquito, Wyeomyia smithii
    Kevin J Emerson
    Center for Ecology and Evolutionary Biology, University of Oregon, Eugene, Oregon, United States of America
    PLoS ONE 5:e9574. 2010
    ..We use a forward genetic approach to investigate transcriptional events involved in the termination of diapause following exposure to long-days...
  16. doi request reprint Light, time, and the physiology of biotic response to rapid climate change in animals
    William E Bradshaw
    Center for Ecology and Evolutionary Biology, University of Oregon, Eugene, OR 97403 5289, USA
    Annu Rev Physiol 72:147-66. 2010
    ....
  17. doi request reprint Environmental control of ovarian dormancy in natural populations of Drosophila melanogaster
    Kevin J Emerson
    Center for Ecology and Evolutionary Biology, University of Oregon, Eugene, OR 97403 5289, USA
    J Comp Physiol A Neuroethol Sens Neural Behav Physiol 195:825-9. 2009
    ..We conclude that ovarian dormancy in D. melanogaster is a temperature-initiated syndrome of winter-tolerant traits that represents an adaptive phenotypic plasticity in temperate seasonal environments...
  18. doi request reprint Complications of complexity: integrating environmental, genetic and hormonal control of insect diapause
    Kevin J Emerson
    Center for Ecology and Evolutionary Biology, 5289 University of Oregon, Eugene, OR 97403 5289, USA
    Trends Genet 25:217-25. 2009
    ..Understanding the genetic basis for environmental control of diapause has wider implications for evolutionary response to rapid climate change and for the opportunity to observe evolutionary change in contemporary time...
  19. doi request reprint Evolution of photoperiodic time measurement is independent of the circadian clock in the pitcher-plant mosquito, Wyeomyia smithii
    Kevin J Emerson
    Center for Ecology and Evolutionary Biology, University of Oregon, Eugene, OR 97403 5289, USA
    J Comp Physiol A Neuroethol Sens Neural Behav Physiol 195:385-91. 2009
    ..smithii has not been causally mediated by a corresponding evolution of the circadian clock...
  20. doi request reprint Extrinsic light:dark cycles, rather than endogenous circadian cycles, affect the photoperiodic counter in the pitcher-plant mosquito, Wyeomyia smithii
    Kevin J Emerson
    Center for Ecology and Evolutionary Biology, 5289 University of Oregon, Eugene, OR 97403 5289, USA
    J Comp Physiol A Neuroethol Sens Neural Behav Physiol 194:611-5. 2008
    ....
  21. ncbi request reprint Evolutionary divergence of circadian and photoperiodic phenotypes in the pitcher-plant mosquito, Wyeomyia smithii
    Derrick Mathias
    Center for Ecology and Evolutionary Biology, University of Oregon, Eugene, OR 97403 5289, USA
    J Biol Rhythms 21:132-9. 2006
    ..smithii. The implication is that in this species, genetic modification of the circadian clock has not been the basis for the adaptive modification of photoperiodic time measurement over the climatic gradient of North America...
  22. pmc Quantitative trait loci associated with photoperiodic response and stage of diapause in the pitcher-plant mosquito, Wyeomyia smithii
    Derrick Mathias
    Center for Ecology and Evolutionary Biology, University of Oregon, Eugene, Oregon 97403 5289, USA
    Genetics 176:391-402. 2007
    ..smithii. Finally, we highlight one region of the genome that includes loci contributing to CPP, SOD, and hormonal regulation of development...
  23. doi request reprint Latitudinal variation in photoperiodic response of the three-spined stickleback Gasterosteus aculeatus in western North America
    Q S Yeates-Burghart
    Center for Ecology and Evolutionary Biology, University of Oregon, Eugene, OR 97403 5289, USA
    J Fish Biol 75:2075-81. 2009
    ..Increasing reliance on photoperiod with increasing latitude is a general phenomenon among vertebrates, and is probably due to the anticipation of a narrower window of opportunity for reproduction and development at higher latitudes...
  24. pmc Circadian clock genes, ovarian development and diapause
    William E Bradshaw
    Center for Ecology and Evolutionary Biology, University of Oregon, Eugene, OR 97403 5289, USA
    BMC Biol 8:115. 2010
    ..However, their observations could also be the result of pleiotropic effects of the individual clock genes.See research article http://www.biomedcentral.com/1741-7007/8/116...
  25. ncbi request reprint Climate change. Evolutionary response to rapid climate change
    William E Bradshaw
    Center for Ecology and Evolutionary Biology, University of Oregon, Eugene, OR 97403, USA
    Science 312:1477-8. 2006
  26. pmc Resolving postglacial phylogeography using high-throughput sequencing
    Kevin J Emerson
    Center for Ecology and Evolutionary Biology, University of Oregon, Eugene, OR 97403 5289, USA
    Proc Natl Acad Sci U S A 107:16196-200. 2010
    ....