tailieunhanh - Development of microsatellite markers in sesame (Sesamum indicum L.)

Sesame (Sesamum indicum L.) is an important oilseed crop with high-quality seed oil and many antioxidant properties. Owing to its commercial and medicinal values, there is a renewed interest among agricultural scientists in this ancient crop. | Turkish Journal of Agriculture and Forestry Turk J Agric For (2014) 38: 603-614 © TÜBİTAK doi: Research Article Development of microsatellite markers in sesame (Sesamum indicum L.) 1, 2 2 2 2 Jyothi BADRI *, Vijay YEPURI , Anuradha GHANTA , Sivaramakrishnan SIVA , Ebrahimali Abubacker SIDDIQ 1 Directorate of Rice Research, Rajendranagar, Hyderabad, India 2 Institute of Biotechnology, Acharya N. G. Ranga Agricultural University, Rajendranagar, Hyderabad, India Received: Accepted: Published Online: Printed: Abstract: Sesame (Sesamum indicum L.) is an important oilseed crop with high-quality seed oil and many antioxidant properties. Owing to its commercial and medicinal values, there is a renewed interest among agricultural scientists in this ancient crop. Efforts to strengthen the sesame-specific marker base have been initiated in the recent past; however, the available number of microsatellite markers is still not sufficient for the development of high-resolution genetic linkage maps for important agronomic traits and there is a need to increase the number of informative DNA markers in sesame. In the present study, we developed 25 microsatellite markers by employing the selective hybridization strategy and 95 mining expressed sequence tags of the NCBI database. This new set of microsatellite markers was characterized and screened for genetic diversity in an array of 16 sesame germplasms. Of the 120 SSRs, 92 were polymorphic, consisting of 18 SSRs from selective hybridization and 74 from the EST data set. The number of alleles per microsatellite locus ranged from 2 to 5, with an average of alleles. The allele size ranged widely (100–510 bp) among the primer pairs. Polymorphic information content estimates ranged from to . Jaccard’s similarity coefficient ranged from to . The potential of the markers was assessed by .