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PolySuccess

The objective of the PolySuccess project is to identify the molecular mechanisms involved in the evolutionary dynamic, stabilisation and adaptive success of a polyploid species, using Brassica napus (oilseed rape, 2n= 4x= 38) as a model system. To that purpose, the nuclear genome (coverage : 50X) of several B. napus varieties as well as synthetics and their diploid parents (B. rapa : turnip ; B. oleracea : cabbage) were sequenced, allowing to decipher the patterns of structural evolution that occurred immediately after the formation of an allopolyploid species and along its evolution. The impact of these rearrangements on the functional evolutionary dynamic of the duplicated genes and on the species adaptation will be explored.