Journal
3 BIOTECH
Volume 9, Issue 7, Pages -Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s13205-019-1785-6
Keywords
Alleles; Diversity; Potato; SSR marker; Solanum species
Categories
Funding
- Competent Authority, ICAR-CPRI, Shimla
- Germplasm and Biotechnology programmes [HORTCPRICIL201500300131]
- CABin scheme (IASRI, New Delhi)
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Allelic variation in wild potato (Solanum) species was analysed using 14 simple sequence repeat (SSR) markers. SSR allelic profiles showed high polymorphism and distinctness among the wild species. A total of 109 alleles of 14 polymorphic SSR markers were scored in 82 accessions belonging to 22 wild potato species. Allele size ranged from a minimum of 104bp (STI0030) to a maximum of 304bp (STM5114). Number of SSR alleles per marker ranged from 4 (STM5127/STM1053) to 13 (STM0019), whereas PIC value varied between 0.66 (STM1053) and 0.91 (STM0019). Cluster analysis using SSR allelic profiles of 82 accessions grouped showed 5 major clusters (I-V) based on the Dice similarity coefficient using neighbour-joining clustering method. Distinct allelic variations were observed among the accessions irrespective of the origin country, series and species. Our study suggests that SSR-based molecular characterization of wild potato species is accession specific and development of an allelic dataset for all the accessions would strengthen their utilization in potato research in future.
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