This work has been funded by grants from the Spanish Ministry of Science and Innovation (TIN2008-01117, TEC2010-11776-E, TIN2012-37483-C03-03) and Junta de Andalucía (P08-TIC-3518 and P10-TIC-6548, P11-TIC7176), in part financed by the European Regional Development Fund (ERDF) and Campus de Excelencia Internacional Agroalimentario (ceiA3).