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Articles by Zahoor Ahmed Swati
Total Records ( 2 ) for Zahoor Ahmed Swati
  Aisha Naz , Zahoor Ahmed Swati and Imtiaz A. khan
  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.
  Iqbal Munir , Zahoor Ahmed Swati , Muhammad Hamid Rashid , Ryoichi Yamaji , Hiroshi Inui and Yoshihisa Nakano
  We report here for the first time about the occurrence of a new NADP+-dependent ADH-I (EC1.1.1.2) in Euglena gracilis Z, which was separated from the already reported one (ADH-II) by hydrophobic chromatography on Butyl Toyo-pearl 650s and partially characterized. Both the enzymes were named as ADH-I and ADH-II based on their elution profile. ADH-1 seems to be constitutive with broader substrate specificity and reacted almost equally with all types of alcohols tested, while the inducible ADH-2 was active towards the middle and long-chain fatty alcohols and less active towards the primary short-chain and secondary alcohols. The ADH-1 was misophillic in nature with an optimal temperature of 55°C, while the other one was thermophilic. For ADH-1, the optimal pH was at the range of 8-9.0, while ADH-2 gave its maximal activity at pH range of 7.8 to 9.5 at 55°C. Accordingly, the two isozymes were proved to be different from each other in their properties.
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