Cryptic species could represent a substantial fraction of biodiversity. However, inconsistent
definitions and taxonomic treatment of cryptic species prevent informed estimates of their …

Intrinsic postzygotic barriers can play an important and multifaceted role in speciation, but
their contribution is often thought to be reserved to the final stages of the speciation process …

Ecologically mediated selection against hybrids, caused by hybrid phenotypes fitting poorly
into available niches, is typically viewed as distinct from selection caused by epistatic …

Background There are conflicting views between palaeobotanists and plant systematists/
evolutionary biologists regarding the occurrence of plant speciation in the Quaternary …

Surprisingly little attention has been given to the impact of selfing on speciation, even
though selfing reduces gene flow between populations and affects other key population …

Self-fertilisation is widespread among hermaphroditic species across the tree of life. Selfing
has many consequences on the genetic diversity and the evolutionary dynamics of …

Understanding how organisms adapt to changing environments is a core focus of research
in evolutionary biology. One common mechanism is adaptive introgression, which has …

Several morphological and mitochondrial lineages of the alpine ringlet butterfly species
Erebia pronoe have been described, indicating a complex phylogenetic structure. However …

Marine rockpools are isolated patches of habitat in the supratidal environment (the so-called
splash zone), at the transition between sea and land, found along the rocky shores …

The Arctic is one of the most extreme terrestrial environments on the planet. Here, we
present the first chromosome‐scale genome assembly of a plant adapted to the high Arctic …