Effects of pathogen exposure on life-history variation in the gypsy moth (Lymantria dispar).

ABSTRACT: Investment in host defences against pathogens may lead to trade-offs with host fecundity. When such trade-offs arise from genetic correlations, rates of phenotypic change by natural selection may be affected. However, genetic correlations between host survival and fecundity are rarely quantified. To understand trade-offs between immune responses to baculovirus exposure and fecundity in the gypsy moth (Lymantria dispar), we estimated genetic correlations between survival probability and traits related to fecundity, such as pupal weight. In addition, we tested whether different virus isolates have different effects on male and female pupal weight. To estimate genetic correlations, we exposed individuals of known relatedness to a single baculovirus isolate. To then evaluate the effect of viru

SUBMITTER: Paez DJ 

PROVIDER: S-EPMC4604033 | biostudies-literature | 2015 Oct

REPOSITORIES: biostudies-literature