Computer, Electrical and Mathematical Sciences and Engineering Division, KAUST, Thuwal 23955-6900, KSA, Bioinformatics laboratory, Institute of Botany, ANAS, Baku AZ1073, Azerbaijan and.|Computer, Electrical and Mathematical Sciences and Engineering Division, KAUST, Thuwal 23955-6900, KSA, Bioinformatics Division, Softberry Inc., Mount Kisco, NY 10549, USA.