tailieunhanh - Use of RAPD marker for the assessment of genetic diversity of sesame (Sesamum indicum L.) varieties

Genetic diversity among 28 sesame (Sesamum indicum L.) varieties was examined at DNA level by means of random amplified polymorphic DNA (RAPD) analysis. Fifteen primers used produced a total of 132 RAPD fragments. Each primer generated 3 to 26 amplified fragments with an average of bands per primer. Based on pair-wise comparisons of RAPD amplification products, Nei and Li’s similarity coefficients were computed to assess the associations among the varieties. Pair-wise similarity indices varied from to . A UPGMA cluster analysis based on these genetic similarities located most of the varieties far apart from one another, showing a high level of polymorphism. Genetically, all the genotypes were classified into two major groups at similarity coefficient and these major groups are further divided into small clusters as the similarity coefficient level increases. | 2017 6 5 2523-2530 International Journal of Current Microbiology and Applied Sciences ISSN 2319-7706 Volume 6 Number 5 2017 pp. 2523-2530 Journal homepage http Original Research Article https Use of RAPD Marker for the Assessment of Genetic Diversity of Sesame Sesamum indicum L. Varieties Kanak Saxena and Rajani Bisen Department of Genetics and Plant Breeding College of Agriculture Jawaharlal Nehru Krishi Vishwa Vidyalaya Jabalpur . India Corresponding author ABSTRACT Genetic diversity among 28 sesame Sesamum indicum L. varieties was examined at DNA level by means of random amplified polymorphic DNA RAPD analysis. Fifteen primers Keywords used produced a total of 132 RAPD fragments. Each primer generated 3 to 26 amplified fragments with an average of bands per primer. Based on pair-wise comparisons of RAPD RAPD amplification products Nei and Li s similarity coefficients were computed to Genetic assess the associations among the varieties. Pair-wise similarity indices varied from to diversity . A UPGMA cluster analysis based on these genetic similarities located most of the Polymorphism varieties far apart from one another showing a high level of polymorphism. Genetically all the genotypes were classified into two major groups at similarity coefficient and Article Info these major groups are further divided into small clusters as the similarity coefficient level increases. Accession Swetha Til and AKT-101 was show maximum distance from each Accepted other. In conclusion even with the use of a limited set of primers RAPD technique 25 April 2017 revealed a high level of genetic variation among sesame varieties. This high level of Available Online genetic diversity among the genotypes suggested that RAPD technique is valuable for 10 May 2017 sesame systematic and can be helpful for competent choice of parents in breeding programs. Introduction Sesame Sesamum indicum .

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