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VOL. 7, ISSUE 1 (2025)
Assessment of genetic diversity of sesame accessions using sequence-related amplified polymorphism (SRAP) markers
Authors
M V Parakhia, Neha Chovatiya, Zarna Vora, Hiren Bhalani, U K Kandoliya
Abstract
Sequence-related amplified polymorphism (SRAP) markers were used to assess the genetic diversity among a collection of 30 sesame accessions representing different geographical environments. A combination of 109 primers generated a high number of alleles (1031) with 100% polymorphism. The polymorphic information content (PIC) and SRAP primer index (SPI) recorded overall means of 0.83 and 8.09, respectively. Genetic similarity values based on Jaccard coefficients ranged from 0.009 to 0.781, with an average similarity value of 0.40, indicating both high genetic distance and a wide genetic basis of the investigated accessions. The unweighted pair group method with arithmetic mean (UPGMA) dendrogram grouped 30 accessions into two main clusters, and six sub clusters and four accessions failed to form clusters and were separated individually. However, subclusters separated the accessions and, considering the relatedness of accessions and their geographical origin, formed distinct diversity among groups. JTS-8 from Vriddhachalam showed the widest genetic basis compared with other introduced accessions that were distributed throughout the dendrogram, indistinguishable by cluster analysis. SRAP analysis revealed a high degree of genetic polymorphism in sesame accessions investigated and showed weak association between geographical origin and SRAP patterns. This wide genetic variability should be considered for sesame breeding programs.
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Pages:41-48
How to cite this article:
M V Parakhia, Neha Chovatiya, Zarna Vora, Hiren Bhalani, U K Kandoliya "Assessment of genetic diversity of sesame accessions using sequence-related amplified polymorphism (SRAP) markers". International Journal of Agriculture and Plant Science, Vol 7, Issue 1, 2025, Pages 41-48
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