Prospect of the Application of Molecular Markers as Discrimination Criteria on the Disputes of Plant New Variety
2018
Kwon, S.H., Seoul National University, Seoul, Republic of Korea | Kang, K.S., Seoul National University, Seoul, Republic of Korea
New varieties of various plants are being developed, and disputes related to plant genetic resources are increasing. The sovereignty of genetic resources and developmental interests are expected to become complicated due to the pursuit of breed conservation policies and economic interests. The breed dispute has been judged on the basis of cultivation adaptation test, substance analysis and molecular marker. Among them, research on genetic analysis techniques and functional molecular markers is actively applied as the rapidity and reproducibility in comparison with the development of technology and other techniques. Therefore, it would be more efficient and objective to improve discrimination technology using molecular markers. The purposes of this study were to identify the position of varieties discrimination technology using molecular markers in disputes based on the case study, and to suggest directions for future varieties discrimination techniques by comparing and analyzing dispute of the domestic and overseas varieties of crop plants. This study analyzed seven domestic and foreign cases. As a result, technology such as molecular markers has not yet been adopted as a crucial evidence in the dispute. On the other hand, the statistical data of the cultivation test on the phenotypic difference of the target traits were adopted as more definitive evidence. Therefore, molecular markers should be developed in the gene linked to the trait, and gene expression markers in quantitative traits should be developed. if also the breeders could develop molecular markers from the early stage of breed development, and if the dispute regulatory agency could apply the improved molecular markers to judge the verdict of new variety dispute, more efficient and objective judgment of breed disputes would be possible.
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