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Mating systems directly control the transmission of genes across generations, and understanding the diversity and distribution of mating systems is central to understanding the evolution of any group… (More)
Genome sizes vary widely among species, but comprehensive explanations for the emergence of this variation have not been validated. Lynch and Conery (2003) hypothesized that genome expansion is… (More)
Inbreeding depression is the reduction in offspring fitness associated with inbreeding and is thought to be one of the primary forces selecting against the evolution of self-fertilization. Studies… (More)
Sterility is a commonly observed phenotype in interspecific hybrids. Sterility may result from chromosomal or genic incompatibilities, and much progress has been made toward understanding the genetic… (More)
Summary 1. We examined the fitness consequences of pollen limitation in the valley oak (Quercus lobata Nee, Fagaceae), a wind-pollinated, predominantly outcrossing tree endemic to California, by… (More)