Evaluation of genetic differentiation within the Sage-grouse genus Centrocercus. Three geographically distinct samples of North American Sage-grouse, genus Centrocercus (class Aves). Two samples are taxonomically considered Greater Sage-grouse (Centrocercus urophasianus) and the third is considered

Identification of the causal genes that control complex trait variation remains challenging, limiting our appreciation of the evolutionary processes that influence polymorphisms in nature. We cloned a quantitative trait locus that controls plant defensive chemistry, damage by insect herbivores, surv

Fitness trade-offs across episodes of selection and environments influence life-history evolution and adaptive population divergence. Documenting these trade-offs remains challenging as selection can vary in magnitude and direction through time and space. Here, we evaluate fitness trade-offs at the

Genetic variation at the MHC is vitally important for wildlife populations to respond to pathogen threats. Because natural populations can fluctuate greatly in size, a key issue concerns how population cycles and bottlenecks that could reduce genetic diversity will influence MHC genes. Using 454 seq

This file contains the individual level data for selection analyses and estimates of response to selection in the recombinant inbred lines (RILs) planted in the Montana and Colorado parental environments. Included are data on planting site, family identification, timing of first flowering, plant siz

This file contains family-level average trait values for the recombinant inbred lines (RILs) in the Colorado garden. Columns include: family, leaf number at flowering (standardized to a mean of 0 and standard deviation of 1), height at flowering (standardized to a mean of 0 and standard deviation of

Seed set in the perennial larkspur Delphinium nelsonii is greater in crosses between plants growing an intermediate distance apart than in shorter and longer crosses. Since crossing distance is an attribute of a specific combination of parents, its effect on seed set represents an interaction of the

It is often assumed that genetic diversity contributes to reduced disease incidence in natural plant populations. However, little is known about the genetic structure of natural populations affected by disease. Here I present data from three apomictic (asexual) populations of Arabis holboellii infec

Phosphoglucose isomerase genotypes in the butterfly Colias differ dramatically in biochemical properties. These differences were evaluated earlier, using metabolic network theory, to predict, successfully, their effects on glycolytic metabolism and hence on Colias flight capacity and several consequ

The use of path analysis has grown rapidly in recent years, yet few studies employ recent advances in the field of structural equation modelling (SEM). Here I illustrate the capabilities of SEM for path analyses, using data from a study of hummingbird pollination. The main drawback to conventional p