A quick glance at noteworthy articles in this month's issue

INTRINSIC GENETIC AND EXTRINSIC CLIMATIC FACTORS INFLUENCE THE BIOGEOGRAPHY OF COMPLEX POLYPLOIDS: THE CASE OF CAMPANULA ROTUNDIFOLIA Campanula rotundifolia is a widespread, highly variable polyploid complex that is phylogenetically and taxonomically challenging. Using chloroplast and nextgen nuclear markers, Sutherland and Galloway demonstrate that its phylogeography has been mediated by both wholegenome duplication and glacial cycles. Notably, European populations persisted both north and south of the Alps during glaciation, whereas North American populations were restricted to a relatively small Midwestern refugium and have recolonized much of the continent since the last ice age. These findings indicate the important contribution of both intrinsic (polyploid formation) and extrinsic (glaciation) factors in shaping the distribution and genetic patterns of polyploid complexes.