Page 51 - BJS vol. 35
P. 51

Genetic Diversity Analysis and DNA Fingerprinting of Ten ..... Markers   43



                            Results of the present investigation revealed that the four SSR primers were able
                     to  identify  and  classify  ten  sugarcane  germplasm  indicating  genetic  differences  among
                     germplasm.  Therefore, DNA fingerprinting and diversity analysis of all the germplasm as
                     well as entire germplasm  collection should be  done in order to determine their genetic
                     relationships among them.

                     Table 1.   Parameters  of  primers  sequences  of  four  sugarcane  microsatellite
                              primers from the International Sugarcane Microsatellite Consortium

                                                      Sequence                       G+C Content
                      Primer Code
                                                                                          (%)
                      SMC687CS      Forward: -AGC CAT GCA GGC AGG CAT-                   61.11
                                    Reverse: -CGC ACA ATC TGC AAG TGC ATC A-             50.00

                      SMC334BS      Forward: -CAA TTC TGA CCG TGC AAA GAT-               42.85
                                     Reverse: -CGA TGA GCT TGA TTG CGA ATG-              47.61

                      SMC119CG      Forward: -TTC ATC TCT AGC CTA CCC CAA-               47.61
                                    Reverse: -AGC AGC CAT TTA CCC AGG A-                 52.63

                      SMC766BS      Forward: -TTA CTC GGC TGG GTT TTG TTC-               47.61
                                    Reverse: -TAA GAA TCG TTC GCT CCA GC-                50.00

                     Table 2. Microsatellite primers with corresponding bands scored, their size range,
                              number  of  polymorphic  bands,  polymorphism  and  number  of  band  per
                              germplasm  together  with  germplasm  distinguished  in  ten  sugarcane
                              germplasm

                                             Total
                                   Size                Number of   Polymorph  Number of   Germplasm
                      Primer codes  ranges   number of   polymorphic   ism    band per   distinguished
                                             bands
                                    (bp)                 bands        (%)    germplasm      (%)
                                             scored

                      SMC687CS    90-172      19           1         5.26      1.90        20.00

                      SMC334BS    80-184      23           9         39.13     2.30        100.00

                      SMC119CG    89-124      26           3         11.54     2.60        30.00

                      SMC766BS    82-166      34           2         5.88      3.40        20.00
                      Total          -        102          15          -                    170
                      Average        -        25.5        3.75                              42.5
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