Postdoctoral position in "Population Genomics of Sex Chromosomes in Jaera" (M/F)

Job Description

Missions

Participate in the ANR SEXISOL project led by Thomas Broquet : "Evolution of sexual isolation in the species complex of Jaera albifrons crustaceans". This project aims to test hypotheses about two complementary questions using an empirical study of the Jaera albifrons complex. How might sexual isolation have evolved? What exactly is the role of chromosomal rearrangements and sex chromosomes (ZW system), which have been pointed to in the development of sexual isolation?

Activity

The successful candidate will first characterize, at the molecular level, the sex chromosomes across multiple species within the complex, including the degree of differentiation between the Z and W chromosomes, the extent of degeneration, chromosomal rearrangements, and patterns of dosage compensation. It will then reconstruct their evolutionary dynamics across the Jaera albifrons' species complex. Next, the role of sex chromosomes as reproductive barriers to introgressive hybridization will be assessed through genome-wide scans and model-based inference. Gene expression data will also be analyzed to quantify sexual dimorphism in expression, interspecific expression divergence, and hybrid misregulation.

Your Profil

Skills

The candidate must hold a doctoral degree and have a strong background in population genetic and evolution. The ideal candidate should be motivated, have good communication skills, and be willing to work independently and collaboratively, integrating effectively into this collaborative project through active engagement with doctoral researchers and bioinformatics engineers.
Prior experience in any of the following areas will be an advantage :
• population genomics (short-reads and long-reads).
• transcriptomics (short-reads).
• programming skills (e.g. R, Python, bash, C).
• experience with high-performance computing (e.g. slurm).

Your Work Environment

ISEM is a research institution focusing on biodiversity origins, dynamics and the associated evolutionary mechanisms and processes. It hosts a total of ca. 250 scientists spread across 4 research departments. Montpellier is a vibrant university city located in the South of France.
Several stays in the Station Biologique of Roscoff (France) are planned for interactions with the ANR consortium. The station is a marine biology and ecology laboratory with nearly 200 scientists working to study marine organisms and understand the functioning of complex and dynamic marine ecosystems. It is located in Roscoff, a maritime village on the north coast of Brittany in France.

Constraints and risks

NA

Compensation and benefits

Compensation

from 3071€ gross per month, depending on experience.

Annual leave and RTT

44 jours

Remote Working practice and compensation

Pratique et indemnisation du TT

Transport

Prise en charge à 75% du coût et forfait mobilité durable jusqu’à 300€

About the offer

About the CNRS

The CNRS is a major player in fundamental research on a global scale. The CNRS is the only French organization active in all scientific fields. Its unique position as a multi-specialist allows it to bring together different disciplines to address the most important challenges of the contemporary world, in connection with the actors of change.

CNRS

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