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SCOPUS 학술저널

엽록체 전장유전체 비교를 통한 PCR 기반의 Solanum brevicaule 특이적 분자마커 개발

Development of PCR-based markers specific to Solanum brevicaule by using the complete chloroplast genome sequences of Solanum species

DOI : 10.5010/JPB.2022.49.1.030
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Solanum brevicaule is one of the tuber-bearing wild Solanum species. Because of its resistance to several important pathogens infecting potatoes during cultivation, it can be used for potato breeding. However, the fact that S. brevicaule used in this study has an EBN value of two causes the sexual reproduction barriers between the species and cultivated potatoes. In this study, specific markers for discriminating S. brevicaule from other Solanum species were developed on the basis of the results of sequence alignments with the whole chloroplast genomes of S. brevicaule and seven other Solanum species. The chloroplast genome of S. brevicaule was completed by next-generation sequencing technology described in other recent studies. The total sequence length of the chloroplast genome of S. brevicaule is 155,531 bp. Its structure and gene composition are similar to those of other Solanum species. Phylogenetic analysis revealed that S. brevicaule was closely grouped with other Solanum species. BLASTN search showed that its genome sequence had 99.99% and 99.89% identity with those of S. spegazzinii (MH021562) and S. kurtzianum (MH021495), respectively. Sequence alignment identified 27 SNPs that were specific to S. brevicaule. Thus, three PCR-based CAPS markers specific to S. brevicaule were developed on the basis of these SNPs. This study will facilitate in further studies on evolutionary and breeding aspects in Solanum species.

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