Nice. Thank you for your answer. Cheers Marcelo Mendes Brandão ~ Via tablet Postdoc fellow Young Investigator on Bioinformatics Laboratório de Biologia Molecular de Plantas - ESALQ/USP Website: http://bioinfo.esalq.usp.br AtPIN: http://bioinfo.esalq.usp.br/atpin SKYPE: mmbrand Tel: (+55) 19 3429 4442