J. Mallet

Inference of continuous gene flow between species under misspecified models

This study investigates biases in inferring gene flow between species under misspecified models and finds that pulse introgression models are more robust to model misspecification than continuous migration models.

Major patterns in the introgression history of Heliconius butterflies

The paper estimates species phylogeny and introgression events in Heliconius butterflies using whole-genome data and the full-likelihood MSC approach, revealing new evolutionary histories and gene flow patterns.

Polygenic Effects on the Z Chromosome Underlie Hybrid Incompatibility in Papilio and Heliconius Butterflies

This study identifies a polygenic mechanism on the Z chromosome causing hybrid incompatibility in butterflies, explaining Haldane's Rule and the large-X/Z effect through introgression skew and variability.

Admixture of evolutionary rates across a hybrid zone

The paper discovers that hybridization between two swallowtail butterflies causes genomic regions with greater reproductive isolation to evolve at divergent rates, while regions affected by gene flow evolve at similar rates.

Complex basis of hybrid female sterility and Haldane's rule in Heliconius butterflies: Z-linkage and epistasis

This study identifies Z-chromosome epistasis and gene expression changes causing female hybrid sterility in Heliconius butterflies, supporting Haldane's rule in ZW/ZZ taxa.

Full-likelihood genomic analysis clarifies a complex history of species divergence and introgression: the example of the erato-sara group of Heliconius butterflies

This study uses full-likelihood analysis to infer species divergence and introgression in Heliconius butterflies, revealing ancestral gene flow and chromosomal inversion histories.

Analysis of 19 Heliconiine Butterflies Shows Rapid TE-based Diversification and Multiple SINE Births and Deaths

The paper analyzes TE content in 19 Heliconiine butterfly species, finding rapid diversification, unique SINE lineages, and a correlation between TE bursts and speciation.

Genomic architecture and introgression shape a butterfly radiation

The paper uses a low-cost genome assembly strategy to study Heliconius butterfly evolution, finding that introgression, not incomplete lineage sorting, explains most non-canonical genetic histories.

Renewed diversification following Miocene landscape turnover in a Neotropical butterfly radiation

This study investigates how Miocene landscape changes influenced diversification in Neotropical Ithomiini butterflies, finding that ecological turnovers drove speciation and extinction dynamics.

Supergene evolution triggered by the introgression of a chromosomal inversion

The paper shows that supergene alleles in Heliconius numata butterflies arise from introgression of a chromosomal inversion, leading to balanced polymorphism and mimicry polymorphism.

North Andean origin and diversification of the largest ithomiine butterfly genus

This study uses molecular and morphological data to reconstruct the phylogeny of the butterfly genus Pteronymia, showing its origin in the Northern Andes and diversification patterns.