M. Rafajlovic

Coupling of 12 chromosomal inversions maintains a strong barrier to gene flow between ecotypes

The paper identifies 12 chromosomal inversions that strongly couple reproductive barriers between ecotypes of Littorina fabalis, maintaining genetic integrity despite hybridization.

Adaptive, maladaptive, neutral, or absent plasticity: Hidden caveats of reaction norms

The paper shows that reaction norms alone cannot determine if a trait exhibits adaptive, maladaptive, neutral, or no plasticity without knowing the trait's relationship to fitness or local adaptation.

Clones on the run - the genomics of a recently expanded facultative asexual species

The paper uses genome data and modeling to explain why clones dominate range margins in a recently expanded seaweed, showing they arise from sexual populations after bottlenecks and spread ahead of them.

Shallow environmental gradients can cause range margins to form

The paper shows that shallow environmental gradients can lead to sharp range margins when multiple selection gradients steepen each other, even if one gradient is shallow across the range.

The role of phenotypic plasticity in the establishment of range margins

This study investigates how phenotypic plasticity affects population range margins when genetic variance evolves, finding that plasticity can enhance range expansion below a critical cost threshold.

Assessing the role of inversions in maintaining genomic differentiation after secondary contact: local adaptation, genetic incompatibilities, and drift

This study shows that chromosomal inversions can maintain genomic differentiation after secondary contact in finite populations, even with gene flux, by prolonging differentiation persistence and allowing for new incompatibilities and adaptations.

The impact of global selection on local adaptation and reproductive isolation.

This study shows that globally beneficial mutations limit local adaptation and delay genome-wide reproductive isolation despite divergent selection pressures.

Assortative mating, sexual selection and their consequences for gene flow in Littorina

This study examines size-assortative mating in Littorina saxatilis and shows it contributes to reproductive isolation but sexual selection has a stronger impact on reducing gene flow between ecotypes.

Spatial variation in introgression along a toad hybrid zone in France

The paper examines asymmetric introgression patterns in a toad hybrid zone, identifying shared and transect-specific barrier markers that suggest differences in gene flow restriction between two regions.

The effect of genetic architecture and selfing on the capacity of a population to expand its range

This study uses simulations to show that reduced recombination and selfing can enhance range expansion in populations by mitigating genetic drift and deleterious allele accumulation.