Search Results - "Burghardt, Liana"

Evolving together, evolving apart: measuring the fitness of rhizobial bacteria in and out of symbiosis with leguminous plants by Burghardt, Liana T.

“…Most plant–microbe interactions are facultative, with microbes experiencing temporally and spatially variable selection. How this variation affects microbial…”
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The evolutionary ecology of rhizobia: multiple facets of competition before, during, and after symbiosis with legumes by Burghardt, Liana T, diCenzo, George C

“…Rhizobial bacteria have complex lifestyles that involve growth and survival in bulk soil, plant rhizospheres and rhizoplanes, legume infection threads, and…”
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Legacy of prior host and soil selection on rhizobial fitness in planta by Burghardt, Liana T., Epstein, Brendan, Tiffin, Peter

“…Measuring selection acting on microbial populations in natural or even seminatural environments is challenging because many microbial populations experience…”
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Multiple paths to similar germination behavior in Arabidopsis thaliana by Burghardt, Liana T, Edwards, Brianne R, Donohue, Kathleen

“…Germination timing influences plant fitness, and its sensitivity to temperature may cause it to change as climate shifts. These changes are likely to be…”
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Phenotypic and genomic signatures of interspecies cooperation and conflict in naturally occurring isolates of a model plant symbiont by Batstone, Rebecca T, Burghardt, Liana T, Heath, Katy D

“…Given the need to predict the outcomes of (co)evolution in host-associated microbiomes, whether microbial and host fitnesses tend to trade-off, generating…”
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Select and resequence reveals relative fitness of bacteria in symbiotic and free-living environments by Burghardt, Liana T., Epstein, Brendan, Guhlin, Joseph, Nelson, Matt S., Taylor, Margaret R., Young, Nevin D., Sadowsky, Michael J., Tiffin, Peter

“…Assays to accurately estimate relative fitness of bacteria growing in multistrain communities can advance our understanding of how selection shapes diversity…”
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Natural variation for gene expression responses to abiotic stress in maize by Waters, Amanda J., Makarevitch, Irina, Noshay, Jaclyn, Burghardt, Liana T., Hirsch, Candice N., Hirsch, Cory D., Springer, Nathan M.

“…Summary Plants respond to abiotic stress through a variety of physiological, biochemical, and transcriptional mechanisms. Many genes exhibit altered levels of…”
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Modeling the Influence of Genetic and Environmental Variation on the Expression of Plant Life Cycles across Landscapes by Burghardt, Liana T., Metcalf, C. Jessica E., Wilczek, Amity M., Schmitt, Johanna, Donohue, Kathleen

“…Organisms develop through multiple life stages that differ in environmental tolerances. The seasonal timing, or phenology, of life-stage transitions determines…”
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Germination, Postgermination Adaptation, and Species Ecological Ranges by Donohue, Kathleen, Rubio de Casas, Rafael, Burghardt, Liana, Kovach, Katherine, Willis, Charles G

“…Germination behavior is one of the earliest phenotypes expressed by plants. This fact has several consequences for the evolution of postgermination traits,…”
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Host-Associated Rhizobial Fitness: Dependence on Nitrogen, Density, Community Complexity, and Legume Genotype by Burghardt, Liana T, Epstein, Brendan, Hoge, Michelle, Trujillo, Diana I, Tiffin, Peter

“…The environmental context of the nitrogen-fixing mutualism between leguminous plants and rhizobial bacteria varies over space and time. Variation in resource…”
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Precipitation timing and soil substrate drive phenology and fitness of Arabidopsis thaliana in a Mediterranean environment by Martínez‐Berdeja, Alejandra, Okada, Miki, Cooper, Martha D., Runcie, Daniel E., Burghardt, Liana T., Schmitt, Johanna

“…In Mediterranean climates, the timing of seasonal rains determines germination, flowering phenology and fitness. As climate change alters seasonal…”
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Combining GWAS and population genomic analyses to characterize coevolution in a legume‐rhizobia symbiosis by Epstein, Brendan, Burghardt, Liana T., Heath, Katy D., Grillo, Michael A., Kostanecki, Adam, Hämälä, Tuomas, Young, Nevin D., Tiffin, Peter

“…The mutualism between legumes and rhizobia is clearly the product of past coevolution. However, the nature of ongoing evolution between these partners is less…”
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Applying developmental threshold models to evolutionary ecology by Donohue, Kathleen, Burghardt, Liana T., Runcie, Daniel, Bradford, Kent J., Schmitt, Johanna

“…•Phenological models predict reaction norms in dynamic natural environments.•Whole life cycles can be modeled by combining multiple phenological models.•When…”
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A Select and Resequence Approach Reveals Strain-Specific Effects of Medicago Nodule-Specific PLAT-Domain Genes by Burghardt, Liana T, Trujillo, Diana I, Epstein, Brendan, Tiffin, Peter, Young, Nevin D

“…Genetic studies of legume symbiosis with nitrogen-fixing rhizobial bacteria have traditionally focused on nodule and nitrogen-fixation phenotypes when hosts…”
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Filling in the gaps in survival analysis: using field data to infer plant responses to environmental stressors by Tomasek, Bradley J., Burghardt, Liana T., Shriver, Robert K.

“…Elucidating how organismal survival depends on the environment is a core component of ecological and evolutionary research. To reconcile high-frequency…”
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Transcriptomic basis of genome by genome variation in a legume‐rhizobia mutualism by Burghardt, Liana T., Guhlin, Joseph, Chun, Chan Lan, Liu, Junqi, Sadowsky, Michael J., Stupar, Robert M., Young, Nevin D., Tiffin, Peter

“…In the legume‐rhizobia mutualism, the benefit each partner derives from the other depends on the genetic identity of both host and rhizobial symbiont. To gain…”
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A cline in seed dormancy helps conserve the environment experienced during reproduction across the range of Arabidopsis thaliana by Burghardt, Liana T., Metcalf, C. Jessica E., Donohue, Kathleen

“…PREMISE OF THE STUDY: Understanding the factors shaping range limits is critical given current changes in climate as well as human-mediated introduction of…”
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community‐level effect of light on germination timing in relation to seed mass: a source of regeneration niche differentiation by Zhang, Chunhui, Willis, Charles G, Burghardt, Liana T, Qi, Wei, Liu, Kun, Moura Souza‐Filho, Paulo Roberto, Ma, Zhen, Du, Guozhen

“…Within a community, species may germinate at different times so as to mitigate competition and to take advantage of different aspects of the seasonal…”
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Canalization of Seasonal Phenology in the Presence of Developmental Variation: Seed Dormancy Cycling in an Annual Weed by Edwards, Brianne, Burghardt, Liana T., Kovach, Katherine E., Donohue, Kathleen

“…Variation in the developmental timing in one life stage may ramify within and across generations to disrupt optimal phenology of other life stages. By focusing…”
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Fluctuating, warm temperatures decrease the effect of a key floral repressor on flowering time in Arabidopsis thaliana by Burghardt, Liana T, Runcie, Daniel E, Wilczek, Amity M, Cooper, Martha D, Roe, Judith L, Welch, Stephen M, Schmitt, Johanna

“…The genetic basis of growth and development is often studied in constant laboratory environments; however, the environmental conditions that organisms…”
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