reaction norm

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reaction norm

Reaction Norms

reaction norm

norm of reaction

norm of reaction

norm of reaction

Context-specific repeatability of personality traits in a wild bird: a reaction-norm perspective

Two- and three-dimensional maturation reaction norms for the eastern Baltic cod, Gadus morhua

Plasticity of Size and Growth in Fluctuating Thermal Environments: Comparing Reaction Norms and Performance Curves1

Abundant Gene-by-Environment Interactions in Gene Expression Reaction Norms to Copper within Saccharomyces cerevisiae

Abundant Gene-by-Environment Interactions in Gene Expression Reaction Norms to Copper within Saccharomyces cerevisiae

Temperature-Related Reaction Norms of Gene Expression: Regulatory Architecture and Functional Implications

Assessing the developmental stress hypothesis in the context of a reaction norm

Reaction norm for yearling weight in beef cattle using single-step genomic evaluation

Estimating reaction norms for age and size at maturation with reconstructed immature size distributions: a new technique illustrated by application to Northeast Arctic cod

Maturation of Newfoundland American plaice (Hippoglossoides platessoides): long-term trends in maturation reaction norms despite low fishing mortality?

Maximum norm a posteriori error estimates for a 1D singularly perturbed semilinear reaction–diffusion problem

Evolution of Thermal Reaction Norms for Growth Rate and Body Size in Ectotherms: An Introduction to the Symposium1

The Physiological Basis of Reaction Norms: The Interaction Among Growth Rate, the Duration of Growth and Body Size1


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The pattern of expression of a given phenotype across a range of values of some environmental variable. An example is the variation in yield of wheat with varying levels of nitrogen fertilizer applied to the soil. An accurate picture of a reaction norm is only attainable when using organisms of the same genotype, to exclude the influence of genetic variation. This can be accomplished in horticultural research, for example, by using clones of genetically identical plants. The reaction norms of different clones can then be compared. A typical pattern is a series of overlapping bell-shaped curves when plotting a graph of, say, grain yield versus nitrogen level. In natural populations, which are generally heterogeneous genetically, the interactions between genotype and environment are complex and make reaction norms much harder to discern. Compare phenotypic plasticity.

Subjects: Biological Sciences.

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