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Transcriptional Regulations and Hormonal Signaling during Somatic Embryogenesis in the Coconut Tree: An Insight

文献类型： 外文期刊

作者： Khan, Faiza Shafique 1 ; Li, Zhiying 2 ; Shi, Peng 2 ; Zhang, Dapeng 1 ; Htwe, Yin Min 1 ; Yu, Qun 1 ; Wang, Yong 1 ;

作者机构： 1.Chinese Acad Trop Agr Sci, Sanya Res Inst, Hainan Yazhou Bay Seed Lab, Sanya 572025, Peoples R China

2.Chinese Acad Trop Agr Sci, Coconut Res Inst, Natl Key Lab Trop Crop Breeding, Wenchang 571339, Peoples R China

关键词： Cocos nucifera L.; clonal propagation; gene regulation; micropropagation; replanting; senility

期刊名称：FORESTS （ 影响因子：2.9； 五年影响因子：3.0 ）

ISSN：

年卷期： 2023 年 14 卷 9 期

页码：

收录情况： SCI

摘要： The coconut palm (Cocos nucifera L.) is a perennial, cross-pollinated, oil-bearing tropical forest tree. Recently, the demand for coconut goods has surged to 5 to 10 times its former value; however, coconut production is in jeopardy. Coconut senility is one of the most apparent factors that influence productivity. Adequate replanting is urgently required to maintain the growing demand for coconut products. However, coconut palm mass replanting might not be possible with traditional approaches. To overcome this snag, micropropagation via somatic embryogenesis (SE) has enormous potential for proficient clonal propagation in the coconut palm. During SE, the stimulation of cell proliferation, acquisition of embryogenic cell competence, and induction of somatic embryos undergo a series of developmental events. This phenomenon requires regulation in gene expression patterns and the activation of specific signaling pathways. This review summarizes gene regulatory mechanisms involved in the cell cycle, dedifferentiation, totipotency, embryo initiation, and meristem development during somatic embryo formation. Plant hormonal signal transduction is also highlighted during the formation of SE in coconut.

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