S. H. Martin

MdfA is a novel ClpC adaptor protein that functions in the developing Bacillus subtilis spore

This study identifies MdfA as a ClpC adaptor protein in Bacillus subtilis that promotes spore metabolic dormancy by inducing ClpCP-mediated degradation of metabolic enzymes.

Inferring inter-chromosomal rearrangements and ancestral linkage groups from synteny

The paper implements and evaluates algorithms for inferring ancestral linkage groups and inter-chromosomal rearrangements using synteny, showing their effectiveness and limitations with simulations and nematode genome data.

Transposable element insertions are associated with Batesian mimicry in the pantropical butterfly Hypolimnas misippus

This study identifies transposable element insertions at the M locus in Hypolimnas misippus that drive adaptive atavism for Batesian mimicry of Danaus chrysippus.

Do chromosome rearrangements fix by genetic drift or natural selection? A test in Brenthis butterflies

The paper investigates whether chromosome rearrangements in Brenthis butterflies fix via genetic drift or natural selection, finding evidence for both mechanisms.

Subtle introgression footprints at the end of the speciation continuum in a clade of Heliconius butterflies

The paper examines gene flow and speciation in Heliconius butterflies, finding limited introgression and stronger genomic signatures in mimetic populations.

Recent evolution of a maternally-acting sex-determining supergene in a fly with single-sex broods

The paper characterizes a recently evolved maternally-acting sex-determining supergene in Bradysia coprophila, revealing its complex structure and evolutionary dynamics.

Chromosome fissions and fusions act as barriers to gene flow between Brenthis fritillary butterflies

This study shows chromosome fissions and fusions reduce gene flow between sympatric Brenthis fritillary butterflies by lowering effective migration rates in rearranged genomic regions.

Demographically explicit scans for barriers to gene flow using gIMble

This paper introduces gIMble, a method to identify genomic barriers to gene flow by integrating demographic and selection models, applied to Heliconius butterfly data to reveal both large-effect and polygenic barriers.

Rapid and repeatable genome evolution across three hybrid ant populations

This study shows that selection leads to predictable genome evolution in hybrid ant populations within 50 generations, with repeated removal of ancestry from the species with lower effective population size.

Stepwise evolution of a butterfly supergene via duplication and inversion

The paper investigates the evolution of a butterfly supergene, identifying structural duplications and inversions that contributed to recombination suppression over millions of years.

Repeated genetic adaptation to high altitude in two tropical butterflies

This study identifies genetic regions under selection in two tropical butterflies adapted to high altitude, showing that standing variation and introgression from high-altitude specialists contribute to parallel adaptation.

Chromosome fusion affects genetic diversity and evolutionary turnover of functional loci, but consistently depends on chromosome size

This study examines how chromosome fusions in Heliconius butterflies affect genetic diversity and functional locus turnover, showing size-dependent evolutionary impacts.

Signatures of introgression across the allele frequency spectrum

This paper introduces DFS, an extension of the D statistic, to detect introgression by analyzing allele frequency spectra, showing it provides novel insights into timing and direction of introgression.

Microclimate buffering and thermal tolerance across elevations in a tropical butterfly

This study examines microclimate buffering and thermal tolerance in tropical butterflies across elevations, finding that high-elevation populations show reduced heat tolerance but plasticity in common-garden conditions.

Whole-chromosome hitchhiking driven by a male-killing endosymbiont

The paper investigates the origin and spread of a neo-W chromosome in Danaus chrysippus, showing it hitchhiked with a male-killing Spiroplasma endosymbiont due to suppressed recombination.

The wild species genome ancestry of domestic chickens

The paper analyzes genome-wide introgression in domestic chickens, revealing bidirectional hybridization with Grey junglefowl and limited introgression with Ceylon and Green junglefowl.

Classic and introgressed selective sweeps shape mimicry loci across a butterfly adaptive radiation

The paper analyzes genome sequences from Heliconius butterflies to show selection on color pattern loci, identifying both classic and introgressed selective sweeps.

Interspecific introgression mediates adaptation to whole genome duplication

The paper shows bidirectional gene flow between Arabidopsis species mediated adaptation to whole genome duplication, rescuing tetraploids from extinction and enhancing meiotic stability.

Generalisation behaviour of predators toward warning signals displayed by harmful prey: answers from a videogame played by humans.

This study uses a video game to investigate human generalisation behaviour toward warning signals of harmful prey, finding that learning is more efficient in simpler communities and that visual similarity affects prey vulnerability.

Genetic dissection of assortative mating behavior

This study identifies three large-effect QTLs underlying divergent male preference behavior in Heliconius butterflies, linking them to color pattern genes and suggesting modular evolution of assortative mating traits.

Sexually dimorphic gene expression and transcriptome evolution provides mixed evidence for a fast-Z effect in Heliconius

The paper examines gene expression and molecular evolution in the Z sex chromosome of Heliconius butterflies, finding mixed evidence for a fast-Z effect.

Recombination rate variation shapes barriers to introgression across butterfly genomes

The paper examines how recombination rate variation influences introgression barriers in butterfly genomes, finding that recombination rates predict introgression rates and that long chromosomes have stronger barriers.

Patterns of Z chromosome divergence among Heliconius species highlight the importance of historical demography

The paper examines Z chromosome divergence in Heliconius butterflies, showing demographic changes can explain increased divergence, but also identifies cases of reduced gene flow on the Z chromosome.

Exploring evolutionary relationships across the genome using topology weighting

The paper introduces topology weighting to quantify and visualize non-monophyletic relationships across genomes, demonstrating its utility with simulated and real data.