Development of interspecies hybrids to increase ginseng biomass and ginsenoside yield |
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Authors: | Yu-Jin Kim Jeniffer Silva Dabing Zhang Jianxin Shi Sung Chul Joo Moon-Gi Jang Woo-Saeng Kwon Deok-Chun Yang |
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Institution: | 1.Department of Oriental Medicinal Biotechnology, College of Life Science,Kyung Hee University,Yongin,Korea;2.Graduate School of Biotechnology and Ginseng Bank, College of Life Science,Kyung Hee University,Yongin,Korea;3.Shanghai Jiao Tong University-University of Adelaide Joint Centre for Agriculture and Health, School of Life Sciences and Biotechnology,Shanghai Jiao Tong University,Shanghai,China;4.School of Agriculture, Food and Wine,University of Adelaide, Waite Campus,Urrbrae,Australia |
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Abstract: | Key message Interspecific hybrids between Panax ginseng and P. quinquefolius results in hybrid vigor and higher ginsenoside contents. AbstractGinseng is one of the most important herbs with valued pharmaceutical effects contributing mainly by the presence of bioactive ginsenosides in the roots. However, ginseng industry is impeded largely by its biological properties, because ginseng plants are slow-growing perennial herbs with lower yield. To increase the ginseng yield and amounts of ginsenosides, we developed an effective ginseng production system using the F1 progenies obtained from the interspecific reciprocal cross between two Panax species: P. ginseng and P. quinquefolius. Although hybrid plants show reduced male fertility, F1 hybrids with the maternal origin either from P. ginseng or P. quinquefolius displayed heterosis; they had larger roots and higher contents of ginsenosides as compared with non-hybrid parental lines. Remarkably, the F1 hybrids with the maternal origin of P. quinquefolius had much higher ginsenoside contents, especially ginsenoside Re and Rb1, than those with the maternal origin of P. ginseng. Additionally, non-targeted metabolomic profiling revealed a clear increase of a large number of primary and secondary metabolites including fatty acids, amino acids and ginsenosides in hybrid plants. To effectively identify the F1 hybrids for the large-scale cultivation, we successfully developed a molecular marker detection system for discriminating F1 reciprocal hybrids. In summary, this work provided a practical system for reciprocal hybrid ginseng production, which would facilitate the ginseng production in the future. |
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