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Articles by Rehana Asghar
Total Records ( 3 ) for Rehana Asghar
  Rehana Asghar , Rabia Siddique , Muhammad Afzal and Shamim Akhtar
  Plant gene pools are reservoirs of variations, which provide the raw material for crop improvement. Samples in the form of seeds representing the spectrum of genetic variation within cultivated species and their wild relatives. Each variety or a group of varieties exhibits characteristic banding pattern. On the basis of these patterns they can be identified accordingly. Electrophoretic patterns of the protein fractions are directly related to the genetic background of the proteins and can be used to certify the genetic makeup. SDS-PAGE is increasingly used to describe the genetic structure of crop germplasm identification. A total of twenty accessions of rice (Oryza sativaL.) germplasm were analyzed for total seed protein through SDS-PAGE, to ascertain the extent of genetic variation and its geographical distribution. A considerable variation in protein banding pattern was observed which was distributed to various geographical regions. Inter-specific variation was more as compared to intra-specific variation.
  Rehana Asghar , Tayyaba Siddique and Muhammad Afzal
  Genetic variation in germplasm has an important role in identification of varieties. Electrophoretic patterns of the protein fractions are directly related to the genetic background of the proteins and can be used to certify the genetic makeup. SDS-PAGE is a valid technique increasingly being utilized as an approach for species identification. Each variety or a group of varieties exhibit characteristic protein banding patterns. On the basis of these patterns they can be identified accordingly. Twenty-nine accessions of Cicer arietinum(Chickpea) germplasm were analysed for total seed protein profile using sodium dodecylsulphate polyacrylamide gel electrophoresis (SDS-PAGE) to ascertain the extent of genetic variation and its geographical distribution. A considerable variation in protein banding pattern was observed which was localised to various geographical regions. Inter-specific variation was more as compared to intra-specific variation.
  Rehana Asghar , Mushtaq Ahmad , Muhammad Zafar , Abida Akram , Jamshaid Mahmood and Maqbool Hassan
  Acacia modesta Wall (Phulai) belong to family Mimosaceae is being regularly used as miswak (tooth brush) for teeth cleaning in various parts of Pakistan. It is medium size tree, 4-7 meter in height and flowering period is from March-May. The present study was confined to check antibacterial efficacy of twigs extract against dental pathogens. The study was conducted in traditional drug section of National Institute of Health, Pakistan. Lactobacillus (gram positive) strain of bacteria was cultured from dental carriers in control conditions. The effect was determined by disc method. The pharmacognostic study revealed that the extract has significant antibacterial efficacy against lactobacterial triclosan.
 
 
 
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