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Full-Text Articles in Medicine and Health Sciences
Genetically Distinct Behavioral Modules Underlie Natural Variation In Thermal Performance Curves, Gregory W. Stegeman, Scott E. Baird, William S. Ryu, Asher D. Cutter
Genetically Distinct Behavioral Modules Underlie Natural Variation In Thermal Performance Curves, Gregory W. Stegeman, Scott E. Baird, William S. Ryu, Asher D. Cutter
Biological Sciences Faculty Publications
Thermal reaction norms pervade organismal traits as stereotyped responses to temperature, a fundamental environmental input into sensory and physiological systems. Locomotory behavior represents an especially plastic read-out of animal response, with its dynamic dependence on environmental stimuli presenting a challenge for analysis and for understanding the genomic architecture of heritable variation. Here we characterize behavioral reaction norms as thermal performance curves for the nematode Caenorhabditis briggsae, using a collection of 23 wild isolate genotypes and 153 recombinant inbred lines to quantify the extent of genetic and plastic variation in locomotory behavior to temperature changes. By reducing the dimensionality of the …