SFR–M_⋆ relation for VUDS star-forming galaxies. Points are colour-coded depending on the spectroscopic redshift of each galaxy as indicated in the inset. A clear evolution of the SFG main sequence is observed in the VUDS sample up to the highest redshifts z ≃ 5. This is confirmed to z ~ 2 when comparing VUDS data to the main sequence measured from the SDSS at z ~ 0.2 (Peng et al. 2010; full line), the MS at z ~ 1 by Elbaz et al. (2007; dashed line), and the MS of Daddi et al. (2007; dotted line) at z ~ 2. At z> 2 the VUDS data appear to lie significantly above the Daddi et al. (2007) main sequence.