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학술저널
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한국식물생명공학회 Journal of Plant Biotechnology Journal of Plant Biotechnology 제47권 제2호
발행연도
2020.1
수록면
131 - 140 (10page)

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Solanum stoloniferum, one of the wild tetraploid Solanum species belonging to the Solanaceae family, is an excellent resource for potato breeding owing to its resistance to several important pathogens. However, the sexual hybridization of S. stoloniferum with S. tuberosum (potato) is hampered due to the sexual incompatibility between the two species. To overcome this and introgress the various novel traits of S. stoloniferum in cultivated potatoes, cell fusion can be performed. The identification of the fusion products is crucial and can be achieved with the aid of molecular markers. In this study, the chloroplast genome sequence of S. stoloniferum was obtained by next-generation sequencing technology, and compared with that of six other Solanum species to identify S. stoloniferum-specific molecular markers. The length of the complete chloroplast genome of S. stoloniferum was found to be 155,567 bp. The structural organization of the chloroplast genome of S. stoloniferum was similar to that of the six other Solanum species studied. Phylogenetic analysis of S. stoloniferum with nine other Solanaceae family members revealed that S. stoloniferum was most closely related to S. berthaultii. Additional comparison of the complete chloroplast genome sequence of S. stoloniferum with that of five Solanum species revealed the presence of six InDels and 39 SNPs specific to S. stoloniferum. Based on these InDels and SNPs, four PCR-based markers were developed to differentiate S. stoloniferum from other Solanum species. These markers will facilitate the selection of fusion products and accelerate potato breeding using S. stoloniferum.

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