A preliminary experiment was conducted
to generate RAPD pattern with 12 primers
to identify those that would be suitable in
the present study to ensure reproducibility
of RAPD marker data, the primers
generating no or faint (nonreproducible)
bands were discarded (OPB.03 , OPB.05,
OPC.08 and OPD.09). Eight primers
showed clear and good amplification
results. Most of them, about 7, generated
monomorphic banding pattern for all
samples tested (Fig. 2-a), while only one of
the twelve primers (OPD.01) showed
polymorphic banding pattern. (Fig. 2-b).
The number of amplified fragments
generated by these primers varied from 3 in
OPE.03 to 8 in OPA.01 with an average of
5.38 bands for each primer. Molecular
weight of the scored bands ranged from
0.48 kb to 4900 kb. Polymorphisms were
detected by presence or absence and of
amplified fragments for each primer used.
As shown in figure 2 (b) there are genetic
changes in the DNA amplification pattern
by using OPA.01 primer for sample 2 (two
polymorphic bands) and sample 9 (one
polymorphic bands) when compared to the
intact tree and other tested plantlets. Table
3 summarized the genetic variation
revealed by OPA.01 primer.