Status of research on the sweetpotato biotechnology and prospects of the molecular breeding on marginal lands
2018
Kim, H.S., Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, Republic of Korea | Yoon, U.H., National Academy of Agricultural Science, Jeonju, Republic of Korea | Lee, C.J., Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, Republic of Korea | Kim, S.E., Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, Republic of Korea | Ji, C.Y., Korea Scientific Technique Industry Co., Ltd., Suwon, Republic of Korea | Kwak, S.S., Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, Republic of Korea
Dramatic increase in global population accompanied by rapid industrialization in developing countries has led to serious environmental, food, energy, and health problems. The Food and Agriculture Organization of the United Nations has estimated world population will increase to 9.7 billion by 2050 and require approximately 1.7 times more food, and more than 3.5 times energy than that of today. Particularly, sweetpotato is easy to cultivate in unfavorable conditions such as heat, drought, high salt, and marginal lands. In this respect, sweetpotato is an industrially valuable starch crop. To replace crops associated with these food and energy problems, it is necessary to develop new crops with improved nutrients and productivity, that can be grown on marginal lands, including desertification areas using plant biotechnology. For this purpose, exploring useful genes and developing genetically modified crops are essential strategies. Currently, sweetpotato [Ipomoea batatas (L.) Lam.] have been re-evaluated as the best health food and industrial crop that produces starch and low molecular weight antioxidants, such as vitamin A, vitamin E, anthocyanins and carotenoids. This review will focus on the current status of research on sweetpotato biotechnology on omics including genome sequencing, transcriptome, proteomics and molecular breeding. In addition, prospects on molecular breeding of sweetpotato on marginal lands for sustainable development were described.
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