The study of genetic exchange resulting from natural hybridization, horizontal gene transfer,
and viral recombination has long been marked by controversy between researchers holding …

The evolution of intrinsic postzygotic isolation can be explained by the accumulation of
Dobzhansky-Muller incompatibilities (DMI). Asymmetries in the levels of hybrid inviability …

Characterizing the genetic and molecular basis of hybrid incompatibilities is a first step
toward understanding their evolutionary origins. We fine mapped the nuclear restorer (Rf) of …

The accumulation of genetic incompatibilities between isolated populations is thought to
lead to the evolution of intrinsic postzygotic isolation. The molecular basis for these …

Sex‐determining systems are remarkably diverse and may evolve rapidly. Polygenic sex‐
determination systems are predicted to be transient and evolutionarily unstable, yet …

Abstract Background The intertidal copepod Tigriopus californicus is a model for studying
the process of genetic divergence in allopatry and for probing the nature of genetic changes …

Background Genetic interactions within hybrids influence their overall fitness. Understanding
the details of these interactions can improve our understanding of speciation. One …

Introgressive hybridization between genetically divergent populations is an important
evolutionary process. The degree to which repeated hybridization events between the same …

The prevalence of F2 hybrid breakdown in interpopulation crosses of the marine copepod
Tigriopus californicus can be explained by disruption of coadapted gene complexes. This …

Mitochondrial DNA (mtDNA) genomes generally evolve rapidly in animals, but considerable
variation in the rates of evolution of mtDNA occurs among taxa. Higher levels of mutation will …