caa a22 4500 469076011 CHVBK 20180323132935.0 cr unu---uuuuu 170328e19921201xx s 000 0 eng 10.1007/BF02927893 doi (NATIONALLICENCE)springer-10.1007/BF02927893 Pigliucci Massimo Department of Ecology and Evolutionary Biology, University of Connecticut, 06269, Storrs, CT, USA aut Modelling phenotypic plasticity. I. Linear and higher-order effects of dominance, drift, environmental frequency and selection on a one-locus, two-allele model [Elektronische Daten] [Massimo Pigliucci] The evolutionary dynamics of dominance, drift, selection and probability of environmental change is explored in the case of a single-locus two-allele model for the genetic control of phenotypic plasticity. The model represents a situation similar to the real case of the pennant/vestigial phenotype inDrosophila melanogaster. The aim of the simulation is to analyse the contribution of the four factors, of their quadratic effects, and of the two-way interactions on the equilibrium frequencies of the two alleles and on the genotypic constitution of the population. Selection turned out to be the only factor whose linear component significantly affects the system (73% of the variance explained); on the other hand, the cumulative effect of the nonlinear terms is strong (20% of the variance), and most of the interactions are highly significant. Some counter-intuitive effects of the interaction between selection and dominance or selection and frequency of the two environments are shown by means of contour plots from a multidimensional regression surface analysis. An interesting outcome is that plasticity can be favoured in a homogeneous environment, and it is selected against in one particular case of environmental heterogeneity: when two environments are equally likely to occur. Indian Academy of Sciences, 1992 Phenotypic plasticity nationallicence reaction norms nationallicence dominance nationallicence selection nationallicence drift nationallicence allelic sensitivity nationallicence Journal of Genetics Springer India 71/3(1992-12-01), 135-150 0022-1333 71:3<135 1992 71 12041 https://doi.org/10.1007/BF02927893 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02927893 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Pigliucci Massimo Department of Ecology and Evolutionary Biology, University of Connecticut, 06269, Storrs, CT, USA aut NATIONALLICENCE 773 0- Journal of Genetics Springer India 71/3(1992-12-01), 135-150 0022-1333 71:3<135 1992 71 12041 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer