Postdoctoral researcher (M/F)

Job Description

Missions

The postdoctoral researcher will be responsible for:
• Carrying out simulations using the DILS software to produce demographic inferences on divergence scenarios between two populations—cultivated and wild—across 14 plant species
• Using these simulations to identify genes under selection in both cultivated and wild forms
• Producing estimates of the self-fertilization rate from genomic data in 14 plant species
• Finalizing the writing of a scientific article based on these results

Activity

Analysis of reproductive barriers between wild and domesticated forms in 14 plant species

Your Profil

Skills

The candidate must hold a PhD in population genetics, with expertise in genomics and statistics/biostatistics applied to evolutionary biology. Strong experience in programming with R, handling large datasets, data visualization, and a good command of version control tools are required. Knowledge of plant domestication would be a strong asset.

Your Work Environment

Rethinking new strategies to mitigate the impacts of climate change is a priority for agriculture. Unlike cultivated forms maintained by humans, wild relatives of crops face continuous challenges in their natural environments and exhibit greater genetic diversity than cultivated forms. They therefore represent an untapped reservoir of alleles that could be used to enhance the adaptive capacity of cultivated species. However, this potential depends on cross-compatibility between wild and domesticated forms and the fertility of their resulting offspring.
The project aims to characterize the extent and molecular nature of reproductive barriers between these forms and to investigate the underlying evolutionary processes. We have selected 14 wild/domesticated systems representing a continuum of divergence in order to undertake a comparative approach. Genomic data are available, and population genomics analyses have been conducted, including the detection of barrier loci between wild and domesticated forms and selective sweeps within forms. However, the demographic inferences performed using the RIDGE tool do not provide satisfactory detection thresholds for selective sweeps.
The objective of this postdoctoral position is therefore to rerun the simulations using another tool, DILS, and to perform a new search for signatures of selection based on the newly obtained detection thresholds. In addition, genomic data will be used to estimate self-fertilization rates in each form. These new results will be incorporated into a manuscript currently in preparation.
The candidate will be hosted at the GQE Le Moulon laboratory and supervised by Maud Tenaillon, in close collaboration with Yves Vigouroux, Catherine Dogimont, and Sylvain Glémin.

Compensation and benefits

Compensation

Between 3,132 and 4,343 (gross salary, 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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