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  • 袁慧,曾超珍,董旭杰,等.miR397调控植物生长发育和胁迫响应的分子机制[J].植物遗传资源学报,2021,22(3):583-592.    [点击复制]
  • YUAN Hui,ZENG Chao-zhen,DONG Xue-jie,et al.Molecular Mechanism of miR397 Regulating Plant Growth, Development and Stress Responses[J].植物遗传资源学报,2021,22(3):583-592.   [点击复制]
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miR397调控植物生长发育和胁迫响应的分子机制
袁慧1, 曾超珍1, 董旭杰1, 严明理2, 刘志祥1
0
(1.中南林业科技大学 生命科学与技术学院 林业生物技术湖南省重点实验室;2.湖南科技大学 生命科学学院 经济作物遗传改良与综合利用湖南省重点实验室)
摘要:
miR397是植物中保守的miRNA之一,在不同植物中miR397家族大多由1~3个成员组成。通过调控漆酶基因等miR397广泛参与调控植物生长发育和胁迫响应,从而影响植物种子产量、果实品质等重要经济性状。因此,miR397作为分子育种的重要靶标在植物遗传改良中具有很大的应用潜力。本文对miR397在植物中的分布、miR397靶基因的鉴定、miR397调控植物生长发育和胁迫应答的分子机制进行了评述,并提出了仍有待解决的问题,以期为miR397在植物遗传改良中的应用提供参考。
关键词:  miR397  靶基因  漆酶  木质素  胁迫响应  生长发育
DOI:10.13430/j.cnki.jpgr.20201012001
投稿时间:2020-10-12修订日期:2020-11-09
基金项目:国家自然科学基金(31671601);湖南省教育厅科学研究项目(16A223);湖南省作物种质创新与资源利用国家重点实验室培育基地科学基金开放项目(17KFXM04);湖南省研究生科研创新项目(CX20190626)
Molecular Mechanism of miR397 Regulating Plant Growth, Development and Stress Responses
YUAN Hui1, ZENG Chao-zhen1, DONG Xue-jie1, YAN Ming-li2, LIU Zhi-xiang1
(1.Hunan Provincial Key Laboratory of Forestry Biotechnology, College of Life Science and Technology, Central South University of Forestry and Technology;2.Hunan Provincial Key Laboratory of Genetic Improvement and Comprehensive Utilization of Economic Crops, College of Life Science, Hunan University of Science and Technology)
Abstract:
miR397 is one of the conserved miRNAs in plants. In different plants, the miR397 family is mostly composed of one to three members. Through regulating the laccase gene and other genes, miR397 is widely involved in regulating plant growth, development, and stress responses, thus affecting important economic traits such as seed yield and fruit quality. Therefore, as a target gene of molecular breeding, miR397 has great application potential in plant genetic improvement. In this article, the distribution of miR397 in plants, the identification of target genes of miR397, and the regulating roles of miR397 in plant growth, development, and stress responses were reviewed, and the problems that remain to be solved are pointed out, which provides a reference for the application of miR397 in plant genetic improvement.
Key words:  miR397  target gene  laccase  lignin  stress response  growth and development

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