A major challenge in current biology is to understand the genetic basis of variation for
quantitative traits. We review the principles of quantitative trait locus map** and …

The hypothesis that traits closely associated with fitness will generally possess lower
heritabilities than traits more loosely connected with fitness is tested using 1120 narrow …

Studies of spatial variation in the environment have primarily focused on how genetic
variation can be maintained. Many one‐locus genetic models have addressed this issue …

There are two distinct reasons for making comparisons of genetic variation for quantitative
characters. The first is to compare evolvabilities, or ability to respond to selection, and the …

The amounts of inbreeding depression upon selfing and of heterosis upon outcrossing
determine the strength of selection on the selfing rate in a population when this evolves …

Gene flow from the center of a species' range can stymie adaptation at the periphery and
prevent the range from expanding outward. We study this process using simple models that …

After his famous visit to the Galápagos Islands, Darwin speculated that" one might fancy that,
from an original paucity of birds in this archipelago, one species had been taken and …

Hybridization may influence evolution in a variety of ways. If hybrids are less fit, the
geographical range of ecologically divergent populations may be limited, and prezygotic …

Despite recent advances in genetics, development, anatomy, systematics, and
morphometrics, the synthesis of ideas and research agenda put forth in the classic …

A fundamental fact of population genetics is that in closed populations (ie, without
immigration) the presence of only a small number of individuals, sustained over several …