The paper examines sex differences in gene expression and alternative splicing in stick insects, finding that splicing variation declines more rapidly than gene expression after the transition to asexuality.

bioRxiv · Oct 22, 2026 · PreprintEvolutionary Biology

Genome Report: Genome of the Amazon Guppy (Poecilia bifurca) reveals conservation of sex chromosomes and dosage compensation

Lydia J. M. Fong, Bernadette D. Johnson, Iulia Darolti, Benjamin A. Sandkam, Judith E. Mank

The paper reports the genome of the Amazon guppy, revealing conserved sex chromosomes and complete X chromosome dosage compensation despite Y chromosome degeneration.

G3 Genes Genomes Genetics · Aug 19, 2025Peer-reviewedGenomics

A comparison of methodological approaches to the study of young sex chromosomes: A case study in Poecilia

Iulia Darolti, Pedro Almeida, Alison E. Wright, Judith E. Mank

The paper compares analytical methods for studying young sex chromosomes in guppies, finding that reference genome choice significantly affects results.

Journal of Evolutionary Biology · May 4, 2022Peer-reviewedGenomics

Extreme Y chromosome polymorphism corresponds to five male reproductive morphs

Benjamin A. Sandkam, Pedro Almeida, Iulia Darolti, Benjamin L. S. Furman, Wouter van der Bijl, Jake Morris, Godfrey R. Bourne, Felix J. Breden, Judith E. Mank

The paper examines Y chromosome diversity in Poecilia parae, revealing five distinct Y haplotypes associated with different male reproductive morphs despite recombination suppression.

Nature Ecology & Evolution · May 6, 2021Peer-reviewedGenomics