Wen-Juan Ma

The Ma Lab at Vrije Universiteit Brussel is recruiting a postdoctoral researcher for a FWO-funded position in evolutionary genomics, focusing on the evolution of sex chromosomes and sex-specific recombination in anurans (frogs). The lab investigates how sex chromosomes and sex-determination systems originate and evolve, with particular interest in the genomic basis of sex determination, recombination suppression, and the role of endosymbionts in host reproduction. Research topics include assembling and analysing large, repeat-rich anuran genomes, comparative genomics of XY/ZW and homomorphic vs. differentiated sex chromosomes, drivers of sex chromosome turnover, transposable elements, and the evolution of sex-specific recombination rates and landscapes (extreme heterochiasmy). The successful candidate will combine long-read genome assembly, comparative and population genomics, and analysis of recombination patterns and structural variation. The project also offers opportunities to integrate cytogenetics and/or evo-devo approaches, and will involve field sampling and basic molecular lab work. The Ma Lab is part of the Biology Department at Vrije Universiteit Brussel, Belgium. Applicants should have a PhD in evolutionary biology, genomics, bioinformatics, or a closely related field, with strong expertise in evolutionary/population genomics and molecular evolution. Required skills include high-throughput sequencing data analysis, genome assembly, comparative genomics, and strong programming/data-analysis skills (Python, R, Unix). Motivation to work on frog genomes and link genomic patterns to evolutionary mechanisms is essential. A valid EU or equivalent driving licence and prior fieldwork experience are preferred. The position is initially for 12 months, renewable up to 3 years upon positive evaluation, with a planned start date of 1 June 2026 (flexible). Applicants must comply with the mobility rule (not have lived/worked in Belgium for more than 12 months in the 36 months before the fellowship start). To apply, submit your CV (including publication list), cover letter, PhD diploma, and contact details for three referees via the VUB application link by 10 March 2026. For further information, contact Prof. Wen-Juan Ma at [email protected].