Les séminaires ont lieu sur le Campus Montpellier SupAgro/INRA de La Gaillarde (2, place P. Viala Montpellier)
Jeudi 10 avril 2014
Amphi 206 (Cœur d’école) à 14h
Epigenetic control of genome stability: what perspectives for crop breeding?
IRD, UMR DIADE Montpellier
In the last decade, plant biologists and plant breeders have developed a growing interest for the study of epigenetics, defined as the study of heritable changes in gene expression that cannot be explained by changes in the DNA sequence. Epigenetic regulations are involved in plant development, environmental response and control of genome stability: their study thus represents a great promise to better understand plant adaptation to changing environmental conditions. In plants, transposable elements (TEs) play a major role in shaping the epigenome. Our current project proposes to have an insight on the consequences of crop epigenetic misregulation on TE activity and on plant phenotype. In this project we will analyze the repertoire of mobile TEs or ‘mobilome’ in Arabidopsis and in rice, the impact of active TEs on host phenotypes either through genetic mutation or through epigenetic changes (creation of epialleles), and the role of the host in restricting TE movement in response to stress conditions. I will present the preliminary results obtained in characterizing Arabidopsis and rice mobilomes and will discuss the possible transfer of this new technique to different crops.
Contact : Françoise Gosti