Biology | Special Topics in Zoology
Z620 | 12928 | Wade, M


Z620 Evolution in genetically subdivided populations
Evolution in genetically subdivided populations can be different
from evolution in large, randomly mating populations. Genetic
subdivision affects the accumulation of deleterious mutations and,
depending on the nature of density regulation, can either limit or
enhance the action of natural selection. Genetic subdivision is of
particular importance when there are Indirect genetic effects
(IGEs). If an individualís phenotype or fitness depends on the genes
of its social partners, we call this an IGE.  Simple models have
shown that IGEs can alter the rate and direction of evolution for
traits involved in interactions, especially in genetically
subdivided populations. In this course, we will explore these
effects using population genetic models and empirical studies.  We
will discuss the relationships between individual selection, kin
selection, multi-level selection and genes with direct and indirect
genetic effects, with a special emphasis on genes with maternal
effects and genes affecting plastic adaptive response to
environmental variations.