Development of Drought-Tolerant Transgenic Wheat: Achievements and Limitations

文献类型： 外文期刊

第一作者： Khan, Shahbaz

作者： Khan, Shahbaz;Yu, Shaobo;Sun, Min;Yang, Zhenping;Gao, Zhi-qiang;Anwar, Sumera

作者机构：

关键词： genetic modification; Triticum aestivum L; water stress; transcription factors

期刊名称：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES （ 影响因子：5.923； 五年影响因子：6.132 ）

ISSN： 1422-0067

年卷期： 2019 年 20 卷 13 期

页码：

收录情况： SCI

摘要： Crop yield improvement is necessary to keep pace with increasing demand for food. Due to climatic variability, the incidence of drought stress at crop growth stages is becoming a major hindering factor to yield improvement. New techniques are required to increase drought tolerance along with improved yield. Genetic modification for increasing drought tolerance is highly desirable, and genetic engineering for drought tolerance requires the expression of certain stress-related genes. Genes have been identified which confer drought tolerance and improve plant growth and survival in transgenic wheat. However, less research has been conducted for the development of transgenic wheat as compared to rice, maize, and other staple food. Furthermore, enhanced tolerance to drought without any yield penalty is a major task of genetic engineering. In this review, we have focused on the progress in the development of transgenic wheat cultivars for improving drought tolerance and discussed the physiological mechanisms and testing of their tolerance in response to inserted genes under control or field conditions.

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