In addition, the analysis allowed the presumptive detection of chitinase producers on the basis of gene sequences but not based on functional parameters of active enzymes.
Specific forward and reverse primers were designed by Primer3 software (http://bioinfo.ut.ee/primer3-0.4.0/ .ee/primer3-0.4.0/ene sequences onthened from the Genbasis
Where re-infection did occur, it was invariably by another HRV-C type, consistent with the hypothesis that species C types that have been assigned on the basis of VP4/VP2 gene sequence divergence, might nevertheless be antigenically distinct and capable of infection in those exposed previously to heterologous types.
Forward (F) and reverse (R) primers and probes (P) were designed with Primer Express 2.0 (Applied Biosystems) on the basis of TS and DHFR gene sequence obtained from the GeneBank.
Despite extensive sequence diversity, the majority of var genes can be classified into three main subfamilies (A, B, and C) on the basis of upstream gene sequence and chromosomal location.
Divergence time was calculated on the basis of RdRp gene sequence data by using a Bayesian Markov Chain Monte Carlo approach as implemented in BEAST version 1.8.0 (http://beast.bio.ed.ac.uk), as described (15, 19, 29, 30 ).
Forward and reverse primers and probes were designed with Primer Express Applied Biosystemss, Foster City, CA, USA) on the basis of TS gene sequence (Giovannetti et al, 2005), whereas primers and probes for E2F-1, and VEGF were obtained from Applied Biosystems Assay-on-Demand Gexpressionsion products (Hs001572991_m1, and Hs00173626_m1).
Forward (F) and reverse (R) primers and probe (P) were designed with Primer Express 2.0 (Applied Biosystems) on the basis of CdA gene sequence: 5′-TCAAAGGGTGCAACATAGAAAATG-3′ (F), 5′-CGGTCCGTTCAGCACAGAT-3′ (R) and 5′-CTGCTACCCGCTGGG-3′ (P) (Demontis et al, 1998).
4 On the basis of VP4/VP2 gene sequence analysis, all serotypes except HRV87 were classified into two species, HRV-A with 74 serotypes, and HRV-B with 25 serotypes.
The gene-specific primers were constructed using the Primer 3 programme, on the basis of wheat gene sequences in the GenBank (http://www.ncbi.nlm.nih.gov/) [ 23].
