W E L L conducted selection experiments are useful in testing the validity of modern selection theory. Observed genetic changes from selection frequently show poor agreement with expectation. The relationship of selection to the genetic variance composition of a population, to correlated responses, to plateaued populations and to selection limits are problems not yet well understood. This study...

The evolution of egg shape across birds has been associated with breeding ecology, body constraints and nest microclimate, among other factors. We model the effects migratory status, climate, clutch size volume on variation over distribution fork-tailed flycatchers Tyrannus savana. Although status climatic variables appear to be influencing intraspecific shape, these are not significant when ac...

A linkage map of 40 linkage groups (LGs) was developed for brook charr, Salvelinus fontinalis, using an F(2) interstrain hybrid progeny (n = 171) and 256 coding gene SNP developed specifically for brook charr and validated from a large (>1000) subset of putative SNP, as well as 81 microsatellite markers. To identify quantitative trait loci (QTL) related to reproduction functions, these fish wer...