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Estimation of Genetic Divergence among Elite Cotton Cultivars–Genotypes by DNA Fingerprinting Technology

M. Rahmana, D. Hussainb and Y. Zafar*,a

a National Institute for Biotechnology and Genetic Engineering (NIBGE), P.O. Box 577, Jhang Road, Faisalabad, Pakistan
b Dep. of Genetics, Univ. of Melbourne Parkvill,Victoria 3052, Australia



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Fig. 1. Amplification of two geminivirus species Cotton leaf curl virus—Pakistan 1 (CLCuV-Pk1) and Cotton leaf curl virus—Pakistan2 (CLCuV-Pk2) by multiplex PCR. The upper band is the PCR product from CLCuV-Pk2 (510 bp) with primers CLCuV-V2091 and PCL2, and the lower band (360 bp) is the PCR product from CLCuV-Pk1 with primers CLCuV-V2091 and CLCuVPk1-C2442. A. Lane M = kb Ladder, Lane 1 = FH-901, Lane 2 = CIM-473, Lane 3 = CIM-482, Lane 4 = CIM-240, Lane 5 = NIAB-98, Lane 6 = MNH-554, Lane 7 = FH-945, Lane 8 = CIM-448, Lane 9 = RH-500, Lane 10 = VH-53, Lane 11 = FH-930, Lane 12 = BH-36, Lane 13 = positive control (radish DNA), Lane M = kb ladder. B. Lane M = kb ladder, Lane 1 = NF-801, Lane 2 = CIM-435, Lane 3 = NIAB-Karishma, Lane 4 = MNH-93, Lane 5 = S-12, Lane 6 = FH-900, Lane 7 = MNH-552, Lane 8 = CIM-443, Lane 9 = BH-118, Lane 10 = CIM-1100, Lane 11 = VH-137, Lane 12 = CP-15/2, Lane 13 = Cedix, Lane 14 = LRA-5166, Lane 15 = positive control (radish DNA), Lane 16 = negative control, M = kb ladder.

 


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Fig. 2. Dot-blot hybridization signals of the cotton genotypes. In each row one well has been empty after the first one. 1A = positive control (radish DNA), 3A = negative control, 5A = BH-36, 7A = FH-900, 9A = MNH-552, 2B = CIM-443, 4B = BH-118, 6B = VH-137, 8B = FH-901, 10B = CIM-473, 1C = NIAB-98, 3C = CIM-482, 5C = FH-930, 7C = FH-945, 9C = NF-801, 2D = CIM-1100, 4D = S-12, 6D = CIM-448, 8D = RH-500, 10D = CP-15/2, 1E = CIM-435, 3E = Cedix, 5E = LRA-5166, 7E = VH-53, 9E = Ravi, 2F = CIM-240, 4F = MNH-93, 6F = MNH-554, 8F = NIAB-Karishma, 10F = Empty.

 


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Fig. 3. Amplification profile of 20 cotton genotypes with primer OPA-10. M = kb ladder, 1 = FH-900, 2 = MNH-552, 3 = CIM-443, 4 = BH-118, 5 = VH-137, 6 = FH-901, 7 = CIM-473, 8 = CIM-482, 9 = NF-801, 10 = FH-930, 11 = FH-945, 12 = MNH-554, 13 = CIM-1100, 14 = CIM-448, 15 = NIAB-98, 16 = RH-500, 17 = CP 15/2, 18 = Cedix, 19 = LRA-5166, 20 = CIM-435, M = kb ladder.

 


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Fig. 4. M = kb ladder, 1 = FH-900, 2 = MNH-552, 3 = CIM-443, 4 = BH-118, 5 = VH-137, 6 = FH-901, 7 = CIM-473, 8 = CIM-482, 9 = NF-801, 10 = FH-930, 11 = FH-945, 12 = MNH-554, 13 = CIM-1100, 14 = CIM-448, 15 = NIAB-98, 16 = RH-500, 17 = cp 15/2, 18 = cedix, 19 = LRA-5166, 20 = CIM-435, m = kb ladder.

 


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Fig. 5. Dendrogram of 20 cotton genotypes developed from RAPD data using the unweighted pair group method of arithmetic means (UPGMA). The scale is based on Nei and Li's coefficients of similarity.

 





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