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Pakistan Journal of Biological Sciences
Year: 2006  |  Volume: 9  |  Issue: 15  |  Page No.: 2858 - 2861

Studies on Genetic Diversity in Pakistani Wheat Varieties using Randomly Amplified Polymorphic DNA

Aisha Naz, Zahoor Ahmed Swati and Imtiaz A. khan    

Abstract: To improve yield and quality of wheat, presence of genetic diversity is an important prerequisite. To estimate the extent of genetic variability, DNA markers including Randomly Amplified Polymorphic DNA (RAPD) have been widely used in various crops of agronomic importance. During present study, RAPDs were used to estimate genetic relationship among 10 Pakistani wheat varieties and to identify genetically diverse genotypes which can be used in future breeding programs. RAPD primers used during present study produced an average of 1.9 alleles per primer. Size of scorable fragments ranged from 250-1000 bp. A high level of genetic dissimilarity (GD = up to 63%) was estimated among the wheat varieties. Ten wheat varieties were grouped in 3 clusters using dendrogram analysis. Clusters A, B and C comprised land races, derivatives of Mexi-Pak and elite lines having alien gene, respectively.

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