Sorghum Transformation: Achievements, Challenges and Perspectives
نویسندگان
چکیده
Sorghum bicolor is one of the most important crops. It is cultivated globally not only as a source of human food and animal feed, but also for renewable energy. In order to improve sorghum varieties, genetic transformation serves as a unique and important supplement to traditional methods for faster genetic gains. This review summarizes the most recent achievements in sorghum biotechnology by many research groups worldwide. The transformation methods and their contributions are presented in relationship to various types of explants such as calli, immature embryos, and shoot apices. The roles of promoters and selection systems are emphasized. Sorghum transformation results are evaluated with relevance to marker genes and agronomically important genes. This review also addresses the challenges in sorghum transformation and possible strategies to overcome some of these challenges.
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