Incompatibilities in interspecific hybrids, such as sterility and lethality, are widely observed
causes of reproductive isolation and thus contribute to speciation. Because hybrid …

There is an increasing body of evidence to support the significant role of invertebrates in
assessing impacts of environmental contaminants on marine ecosystems. Therefore, in …

Hybrid breakdown, or outbreeding depression, is the loss of fitness observed in crosses
between genetically divergent populations. The role of maternally inherited mitochondrial …

Much progress has been made in the past two decades in understanding Darwin's mystery
of the origins of species. Applying genomic techniques to the analysis of laboratory crosses …

Thermal adaptation to spatially varying environmental conditions occurs in a wide range of
species, but what is less clear is the nature of fitness trade-offs associated with this …

Spontaneous mutations were accumulated for∼ 4800 generations in 48 lines of yeast
protected from effective selection by frequent passage through single-cell bottlenecks …

We report the construction of a linkage map for the moss Ceratodon purpureus (n= 13),
based on a cross between geographically distant populations, and provide the first …

Background C2H2 zinc finger genes (C2H2-ZNF) constitute the largest class of transcription
factors in humans and one of the largest gene families in mammals. Often arranged in …

Abstract Background The salmon louse Lepeophtheirus salmonis is a parasitic copepod that
infects salmonids in the Pacific and Atlantic oceans. Although considered as a single …

Hybridization between populations can disrupt gene expression, frequently resulting in
deleterious hybrid phenotypes. Reduced fitness in interpopulation hybrids of the marine …