José M. Ranz

The paper examines the evolutionary age of Drosophila seminal fluid proteins and finds that 62% of Sfp genes are ancient, with distinct functional and evolutionary properties compared to younger ones.

The paper compares gene expression divergence between male and female germlines in Drosophila species using single-nucleus RNA-seq, finding cell-type-specific patterns and X chromosome enrichment.

This study provides a reference genome, gene annotation, and expression atlas for the monarch butterfly, revealing gene expression patterns and sex-specific regulation across its life cycle.