Tia Lynn Ashman

Summary

Affiliation: University of Pittsburgh
Country: USA

Publications

  1. ncbi request reprint The limits on sexual dimorphism in vegetative traits in a gynodioecious plant
    Tia Lynn Ashman
    Department Biological Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
    Am Nat 166:S5-16. 2005
  2. ncbi request reprint Genetic constraints on floral evolution: a review and evaluation of patterns
    T L Ashman
    1Department of Biological Sciences, University of Pittsburgh, 4249 Fifth Ave and Ruskin, Pittsburgh, PA 15260, USA
    Heredity (Edinb) 96:343-52. 2006
  3. ncbi request reprint Direct and indirect effects of a sex-biased antagonist on male and female fertility: consequences for reproductive trait evolution in a gender-dimorphic plant
    Tia Lynn Ashman
    Department of Biological Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
    Am Nat 169:595-608. 2007
  4. ncbi request reprint Constraints on the evolution of males and sexual dimorphism: field estimates of genetic architecture of reproductive traits in three populations of gynodioecious Fragaria virginiana
    Tia Lynn Ashman
    Department of Biological Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
    Evolution 57:2012-25. 2003
  5. doi request reprint Toward a predictive understanding of the fitness costs of heterospecific pollen receipt and its importance in co-flowering communities
    Tia Lynn Ashman
    Department of Biological Sciences, University of Pittsburgh, 4249 Fifth Avenue, Pittsburgh, PA 15260 3929, USA
    Am J Bot 100:1061-70. 2013
  6. doi request reprint Genetic architecture of sexual dimorphism in a subdioecious plant with a proto-sex chromosome
    Rachel B Spigler
    Department of Biological Sciences, University of Pittsburgh, 4249 Fifth Ave, Pittsburgh, Pennsylvania 15260 3929, USA
    Evolution 65:1114-26. 2011
  7. ncbi request reprint Herbivory and competition interact to affect reproductive traits and mating system expression in Impatiens capensis
    Janette A Steets
    Department of Biological Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
    Am Nat 167:591-600. 2006
  8. pmc Gynodioecy to dioecy: are we there yet?
    Rachel B Spigler
    Department of Biological Sciences, 4249 Fifth Ave, University of Pittsburgh, Pittsburgh, PA 15260 3929, USA
    Ann Bot 109:531-43. 2012
  9. pmc Functional characterization of gynodioecy in Fragaria vesca ssp. bracteata (Rosaceae)
    Junmin Li
    Department of Biological Sciences, University of Pittsburgh, Pittsburgh, PA 15260 3929, USA
    Ann Bot 109:545-52. 2012
  10. doi request reprint Sex ratio and subdioecy in Fragaria virginiana: the roles of plasticity and gene flow examined
    Rachel B Spigler
    Department of Biological Sciences, University of Pittsburgh, Pittsburgh, PA 15260 3929, USA
    New Phytol 190:1058-68. 2011

Detail Information

Publications27

  1. ncbi request reprint The limits on sexual dimorphism in vegetative traits in a gynodioecious plant
    Tia Lynn Ashman
    Department Biological Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
    Am Nat 166:S5-16. 2005
    ....
  2. ncbi request reprint Genetic constraints on floral evolution: a review and evaluation of patterns
    T L Ashman
    1Department of Biological Sciences, University of Pittsburgh, 4249 Fifth Ave and Ruskin, Pittsburgh, PA 15260, USA
    Heredity (Edinb) 96:343-52. 2006
    ..Lastly, we find mixed evidence for a relationship between the level of sexual dimorphism in attraction traits and the between-sex correlation in gender dimorphic plants...
  3. ncbi request reprint Direct and indirect effects of a sex-biased antagonist on male and female fertility: consequences for reproductive trait evolution in a gender-dimorphic plant
    Tia Lynn Ashman
    Department of Biological Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
    Am Nat 169:595-608. 2007
    ..Finally, our results support the view that mutualists, antagonists, and the abiotic environment should be considered when attempting to understand reproductive trait evolution in gender-dimorphic species...
  4. ncbi request reprint Constraints on the evolution of males and sexual dimorphism: field estimates of genetic architecture of reproductive traits in three populations of gynodioecious Fragaria virginiana
    Tia Lynn Ashman
    Department of Biological Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
    Evolution 57:2012-25. 2003
    ..However, evidence that male-female trait correlations in hermaphrodites were lower in populations with higher frequencies of females may indicate subtle changes in genetic architecture...
  5. doi request reprint Toward a predictive understanding of the fitness costs of heterospecific pollen receipt and its importance in co-flowering communities
    Tia Lynn Ashman
    Department of Biological Sciences, University of Pittsburgh, 4249 Fifth Avenue, Pittsburgh, PA 15260 3929, USA
    Am J Bot 100:1061-70. 2013
    ....
  6. doi request reprint Genetic architecture of sexual dimorphism in a subdioecious plant with a proto-sex chromosome
    Rachel B Spigler
    Department of Biological Sciences, University of Pittsburgh, 4249 Fifth Ave, Pittsburgh, Pennsylvania 15260 3929, USA
    Evolution 65:1114-26. 2011
    ..virginiana and raises the possibility that chromosomes in this homeologous group were predisposed to become the sex chromosome...
  7. ncbi request reprint Herbivory and competition interact to affect reproductive traits and mating system expression in Impatiens capensis
    Janette A Steets
    Department of Biological Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
    Am Nat 167:591-600. 2006
    ....
  8. pmc Gynodioecy to dioecy: are we there yet?
    Rachel B Spigler
    Department of Biological Sciences, 4249 Fifth Ave, University of Pittsburgh, Pittsburgh, PA 15260 3929, USA
    Ann Bot 109:531-43. 2012
    ..e. the transition from gynodioecy to dioecy...
  9. pmc Functional characterization of gynodioecy in Fragaria vesca ssp. bracteata (Rosaceae)
    Junmin Li
    Department of Biological Sciences, University of Pittsburgh, Pittsburgh, PA 15260 3929, USA
    Ann Bot 109:545-52. 2012
    ..Thus, we sought to determine whether Fragaria vesca ssp. bracteata, a close relative to F. chiloensis and F. virginiana, exhibits the functional and population genetic hallmarks of a gynodioecious species...
  10. doi request reprint Sex ratio and subdioecy in Fragaria virginiana: the roles of plasticity and gene flow examined
    Rachel B Spigler
    Department of Biological Sciences, University of Pittsburgh, Pittsburgh, PA 15260 3929, USA
    New Phytol 190:1058-68. 2011
    ..We consider how these processes, in addition to other features of this system, may work in concert to influence sex ratios and to hinder the evolution of dioecy in F. virginiana...
  11. pmc Explaining phenotypic selection on plant attractive characters: male function, gender balance or ecological context?
    Tia Lynn Ashman
    Department of Biological Sciences, University of Pittsburgh, Pittsburgh, PA 15260, USA
    Proc Biol Sci 271:553-9. 2004
    ....
  12. doi request reprint Heterospecific pollen deposition: does diversity alter the consequences?
    Gerardo Arceo-Gómez
    Department of Biological Sciences, University of Pittsburgh, Pittsburgh, PA 15260, USA
    New Phytol 192:738-46. 2011
    ..guttatus reproductive success. • Our results suggest that an increase in the diversity of heterospecific donors will not always lead to a greater decrease in fitness because multispecies effects depend on the interacting species...
  13. pmc Comparative genetic mapping points to different sex chromosomes in sibling species of wild strawberry (Fragaria)
    Margot T Goldberg
    Department of Biological Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania 15260 3929, USA
    Genetics 186:1425-33. 2010
    ....
  14. pmc The impact of biochemistry vs. population membership on floral scent profiles in colour polymorphic Hesperis matronalis
    Cassie J Majetic
    Department of Biological Sciences, University of Pittsburgh, Pittsburgh, PA 15260, USA
    Ann Bot 102:911-22. 2008
    ....
  15. ncbi request reprint Consequences of vegetative herbivory for maintenance of intermediate outcrossing in an annual plant
    Janette A Steets
    Department of Biological Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
    Ecology 87:2717-27. 2006
    ..Not only do our findings unravel the mechanisms underlying herbivore-mediated changes in the mating system, but they also point to the role of natural enemies in contributing to the maintenance of a mixed mating system...
  16. ncbi request reprint An experimental test of the effects of resources and sex ratio on maternal fitness and phenotypic selection in gynodioecious Fragaria virginiana
    Andrea L Case
    Department of Biological Sciences, Kent State University, Kent, Ohio 44242, USA
    Evolution 61:1900-11. 2007
    ....
  17. doi request reprint The effects of aluminum and nickel in nectar on the foraging behavior of bumblebees
    George A Meindl
    University of Pittsburgh, Department of Biological Sciences, Pittsburgh, PA 15260, USA
    Environ Pollut 177:78-81. 2013
    ..However, because bumblebees still visited these flowers, they likely ingested a potentially toxic resource. Our findings suggest that soil metals could cascade to negatively affect pollinators in metal contaminated environments...
  18. ncbi request reprint Flower color-flower scent associations in polymorphic Hesperis matronalis (Brassicaceae)
    Cassie J Majetic
    Department of Biological Sciences, University of Pittsburgh, Pittsburgh, PA 15260, USA
    Phytochemistry 68:865-74. 2007
    ..The potential impact that pollinators, conserved biosynthetic pathways, and the genetics of small colonizing populations may have in determining population-specific associations between floral color and floral scent are discussed...
  19. doi request reprint Bioclimatic, ecological, and phenotypic intermediacy and high genetic admixture in a natural hybrid of octoploid strawberries
    Isabella Salamone
    Department of Biological Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
    Am J Bot 100:939-50. 2013
    ..It lays the foundation for experimental dissection of the causes of genomic introgression and nuclear-cytoplasmic disassociation, and for understanding other parts of Fragaria evolutionary history...
  20. pmc Maternal sex effects and inbreeding depression under varied environmental conditions in gynodioecious Fragaria vesca subsp. bracteata
    Rebecca M Dalton
    Department of Biological Sciences, University of Pittsburgh, Pittsburgh, PA 15260 3929, USA
    Ann Bot 112:613-21. 2013
    ..bracteata, a long-lived gynodioecious perennial, do not demonstrate a seed quantity advantage, so this study explored whether females produced better quality seed via maternal sex effects or avoidance of inbreeding depression (IBD)...
  21. pmc The genome of woodland strawberry (Fragaria vesca)
    Vladimir Shulaev
    Department of Biological Sciences, University of North Texas, Denton, Texas, USA
    Nat Genet 43:109-16. 2011
    ..New phylogenetic analysis of 154 protein-coding genes suggests that assignment of Populus to Malvidae, rather than Fabidae, is warranted...
  22. doi request reprint Comparative mapping reveals autosomal origin of sex chromosome in octoploid Fragaria virginiana
    Rachel B Spigler
    Department of Biological Sciences, University of Pittsburgh, Pittsburgh, PA 15260 3929, USA
    J Hered 101:S107-17. 2010
    ..Fine mapping and additional comparative work will shed light on the intriguing possibility that rearrangements during polyploidization were involved in the evolution of sex chromosomes in Fragaria...
  23. ncbi request reprint The interactive effects of herbivory and mixed mating for the population dynamics of Impatiens capensis
    Janette A Steets
    Department of Biological Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
    Am Nat 170:113-27. 2007
    ..Our results not only uncover a novel consequence of mating system expression, that is, mating system influences population dynamics, but also shed light on the role of herbivores in maintaining mixed mating...
  24. ncbi request reprint Quantitative character evolution under complicated sexual systems, illustrated in gynodioecious Fragaria virginiana
    Martin T Morgan
    1 School of Biological Sciences, Washington State University, Pullman, Washington 99164, USA
    Am Nat 162:257-64. 2003
  25. ncbi request reprint The role of natural enemies in the expression and evolution of mixed mating in hermaphroditic plants and animals
    Janette A Steets
    Institute of Arctic Biology, University of Alaska Fairbanks, Fairbanks, Alaska 99775, USA
    Evolution 61:2043-55. 2007
    ....
  26. pmc Pollination decays in biodiversity hotspots
    Jana C Vamosi
    Department of Biological Sciences, University of Calgary, 2500 University Drive NW, Calgary, AB, Canada T2N 1N4
    Proc Natl Acad Sci U S A 103:956-61. 2006
    ..The combination of higher pollen limitation and habitat destruction represents a dual risk to tropical plant species that has not been previously identified...
  27. doi request reprint Predicting evolutionary consequences of pollinator declines: the long and short of floral evolution
    Randall J Mitchell
    Department of Biology, Program in Integrated Biosciences, University of Akron, Akron, OH 44325 3908, USA
    New Phytol 177:576-9. 2008