#$%^&*AU2011200429B220130627.pdf#####ABSTRACT The present invention relates to expression cassettes comprising transcription regulating sequences with root-preferential or root-specific expression profiles in plants obtainable from Arabidopsis thaliana genes At1g66280, At1g74500, At1g49570, Atlg70710, At5g66690, At3g29630, At5g48070, or At4g17800.