Abstract
Targeted gene expression in plants allows us to further study biological traits of interest, such as reproductive and developmental processes. Here, the tobacco TA29 anther-specific promoter was used to direct the expression of the ricin enzymatic subunit A (RTA) in transgenic tobacco plants, phenotypic analysis of the resulting positive transgenic tobacco (Nicotiana tabacum L.) plants demonstrated that RTA expression led to a reduction in pistil length and shriveling of anthers, as well as the grayish-brown color of anthers, the reduced pollen viability and male sterility. For the first time, a plant-derived ricin gene enzymatic subunit A (RTA) expression system under the tissue-specific promoter was demonstrated to be sensitive and efficient in controlling plant sterility and creating male-sterile materials. Consequently, it could be used to control other agronomic traits and produce hybrid seeds in plants in the future.
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The Agricultural Science and Technology Innovation Program (ASTIP-TRIC02). Science Foundation for Young Scholars of Tobacco Research Institute of Chinese Academy of Agricultural Sciences (2019B05).
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Lv, J., Dai, Cb. & Sun, Yh. Induction of Male Sterility in Tobacco by Anther-Specific Expression of the Gene for Ricin Enzymatic Subunit A Chain RTA. Mol Biotechnol 62, 364–369 (2020). https://doi.org/10.1007/s12033-020-00252-0
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DOI: https://doi.org/10.1007/s12033-020-00252-0