The CNRGV is the partner of the genome sequencing project involving Canada, USA and France. In this project, the CNRGV will be in charge of the constructions of the new sunflower BAC libraries from the genotype HA412-HO. 3 BAC libraries will be constructed using 3 different enzymes (HindIII, EcoRI, and BamHI) in order to reach a 12 to 14 x coverage of the sunflower genome.