Gene Regulatory Networks

Maize Gene Regulatory Networks Response to Water Deficit (2021-today)

This project aims at studying how plants gene regulatory networks are rewired in response to abiotic constraints in different tissues. To this end, I will use maize response to water deficit as a model. I will use data from the [AMAZING GeneATLAS project](https://amaizing.fr/), to infer the gene regulatory networks of several tissues in well-watered and water-deficit conditions. I am particularly interested in the role of enhancers in such a response.

Role of Enhancers in Maize Leaf Development Gene Regulatory Networks (2019-2021)

This project aims at deciphering the enhancer-mediated tissue-specific regulation of gene expression in maize tissues during leaf development. To this end, I contrasted the gene regulatory networks of two leaf tissues, dividing seedling leaves and mature husk modified leaves that protect the cob. Using a systems biology approach, I showed that these two leaf tissues both share a part of their regulatory network, and feature tissue-specific regulatory modules such as response to growth hormone in seedlings, and stress response in husk. I also investigated the molecular origin of such tissue-specific enhancer-driven regulatory networks, and showed that two different transposable elements from families were shaping the tissue-specific gene regulatory networks of seedlings and husks.

Characterizing cancer-risk mutations (2015-2017)

During my first postdoc, I investigated the genetic bases of the regulation of the expression of polygenic traits, using systems biology approaches based on bipartite network representation. I notably characterized the regulatory role of germinal mutations increasing the risk to develop cancers.