Roger K. Butlin

TL;DR: A phylogeographic analysis shows that DWV is globally distributed in honeybees, having recently spread from a common source, the European honeybee Apis mellifera, and exhibits epidemic growth and transmission that is predominantly mediated by European and North American honeybee populations and driven by trade and movement of honeybee colonies.

TL;DR: This work applies the technique of amplified fragment length polymorphism (AFLP) analysis to an intertidal snail whose populations display a cline in shell shape across vertical gradients on rocky shores and finds that about 5% of these loci show greater differentiation than expected, providing evidence of the effects of selection across the cline.

TL;DR: A common framework is provided for the ways in which gene flow opposes speciation and the potential conditions that may ease divergence, centred on the challenge shared by most scenarios of speciation‐with‐gene‐flow.

TL;DR: It is suggested that it is more productive to study the current balance between local adaptation and gene flow, the interaction between components of reproductive isolation and the genetic basis of differentiation, than the most common classification of modes of speciation, sympatric, parapatric or allopatric.

TL;DR: It is argued that ideas about the role of recombinations in speciation should be considered in the context of the variability of recombination rates and patterns more generally and that genic as well as chromosomal causes of restricted recombination should be consideration.