Background Analyses of speciation genes–genes that contribute to the cessation of gene
flow between populations–can offer clues regarding the ecological settings, evolutionary …

Plastids and mitochondria arose through endosymbiotic acquisition of formerly free‐living
bacteria. During more than a billion years of subsequent concerted evolution, the three …

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

Understanding the molecular basis of how new species arise is a central question and prime
challenge in evolutionary biology and includes understanding how genomes diversify …

Despite the recent renaissance in studies of ecological speciation, the connection between
ecological selection and the evolution of reproductive isolation remains tenuous. We tested …

The genus Mimulus is a well-studied group of plant species, which has for decades allowed
researchers to address a wide array of fundamental questions in biology (Wu & al., 2008; …

Vegetative traits of plants can respond directly to changes in the environment, such as those
occurring under climate change. That phenotypic plasticity could be adaptive, maladaptive …

Gene transfer through interspecific hybridization can enhance functions such as growth
performance, although its role in the ecophysiological functions of tropical tree species …

Various models purporting to explain natural hybrid zones make different assumptions about
the fitness of hybrids. One class of models assumes that hybrids have intrinsically low fitness …

• Premise of the Study: Hybrid zones provide “natural laboratories” for understanding the
processes of selection, reinforcement, and speciation. We sought to gain insight into the …