SPL转录因子调控植物花发育及其分子机制研究进展

doi:10.3969/j.issn.1000-2006.201708015

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南京林业大学学报（自然科学版） ›› 2018, Vol. 61 ›› Issue (03): 159-166.doi: 10.3969/j.issn.1000-2006.201708015

SPL转录因子调控植物花发育及其分子机制研究进展

田晶,赵雪媛,谢隆聖,权晋谊,姚连梅,王国东,郑要强,刘雪梅^*

东北林业大学生命科学学院, 黑龙江哈尔滨 150040

出版日期:2018-06-06 发布日期:2018-06-06
基金资助:
基金项目:中央高校基本科研业务费专项基金E类项目(2572015EA05); 国家高技术研究发展计划(2013AA102704) 第一作者:田晶(254242132@qq.com)。*通信作者:刘雪梅(695898040@qq.com),教授。

Research advances and molecular mechanism on SPL transcription factors in regulating plant flower development

TIAN Jing, ZHAO Xueyuan, XIE Longsheng, QUAN Jinyi, YAO Lianmei, WANG Guodong, ZHENG Yaoqang, LIU Xuemei^*

College of Life Science, Northeast Forestry University, Harbin 150040, China

Online:2018-06-06 Published:2018-06-06

摘要/Abstract

摘要： SPL(squamosa promoter-binding protein-like)转录因子是植物所特有的一类基因家族,广泛存在于绿色植物中,在植物生长发育中具有重要作用。花发育是植物生殖发育中最为重要的一个过程,涉及不同发育方式的转变,即开花决定、花的发端和花器官发生与发育。简要综述了SPL基因的结构与功能并着重阐述了SPL基因在植物花发育过程中的分子机制及生物学功能。最后总结出: SPL转录因子可直接或间接通过参与光周期途径,赤霉素途径及年龄途径来调控植物的开花时间; SPL基因可通过直接激活下游花分生组织特异基因,如LEAFY(LFY),从而调控植物的成花转变; SPL基因可通过与下游花器官特征基因相互作用来调控花器官及其育性的发育,如调控花序、花柄的长度与外形及花器官的大小; SPL基因可调控植物大小孢子发生及雌雄配子体发育。据拟南芥的相关研究结果,初步构绘出拟南芥开花调控中的分子机制。

Abstract: Abstract: SPL(squamosa promoter-binding protein-like)transcription factor is a kind of gene family unique to plants. It is widely found in green plants and plays an important role in plant growth and development. Flower development is the most important process in plant reproductive development, including changes in the different developmental patterns, such as flowering determination, flower evocation, and floral organ development. This paper summarized the structure and function of SPL transcriptional factors, and in particular described the molecular mechanism and biological function of the SPL gene during plant flower development. Finally, we concluded that SPL transcription factors can be directly or indirectly involved in the photoperiod pathway, gibberellin pathway, and age pathway to control the flowering time in plants. The SPL gene can directly activate the downstream floral meristem identity genes,such as LEAFY(LFY), which regulate the flowering transition in plants. The SPL gene can regulate floral organ and fertility development by the interaction of downstream floral organ identity genes, such as controlling the length and shape of the inflorescence and pedicel, and the size of floral organ. The SPL gene can also regulate plant microsporogenesis and megasporogenesis, male and female gametophyte development. According to related research results with Arabidopsis, we have preliminarily mapped the molecular mechanism of Arabidopsis flowering regulation.

中图分类号:

Q943.2

田晶,赵雪媛,谢隆聖,等. SPL转录因子调控植物花发育及其分子机制研究进展[J]. 南京林业大学学报（自然科学版）, 2018, 61(03): 159-166.

TIAN Jing, ZHAO Xueyuan, XIE Longsheng, QUAN Jinyi, YAO Lianmei, WANG Guodong, ZHENG Yaoqang, LIU Xuemei. Research advances and molecular mechanism on SPL transcription factors in regulating plant flower development[J].Journal of Nanjing Forestry University (Natural Science Edition), 2018, 61(03): 159-166.DOI: 10.3969/j.issn.1000-2006.201708015.

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SPL转录因子调控植物花发育及其分子机制研究进展

Research advances and molecular mechanism on SPL transcription factors in regulating plant flower development

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[1]	高源, 孙佳彤, 周晨光, 姜立泉, 李伟, 李爽. LBD12转录因子调控毛果杨木材形成研究[J]. 南京林业大学学报（自然科学版）, 2024, 48(1): 29-38.
[2]	贾展慧, 贾晓东, 许梦洋, 莫正海, 翟敏, 宣继萍, 张计育, 王刚, 王涛, 郭忠仁. 薄壳山核桃原花青素合成关键酶基因的克隆与表达分析[J]. 南京林业大学学报（自然科学版）, 2022, 46(5): 49-57.
[3]	王竹雯, 国艳娇, 李爽, 周晨光, 姜立泉, 李伟. 基于CRISPR/Cas9的毛果杨PtrHBI1基因功能解析[J]. 南京林业大学学报（自然科学版）, 2021, 45(6): 31-39.
[4]	侯静, 毛金燕, 翟惠, 王洁, 尹佟明. CRISPR/Cas技术在木本植物改良中的应用[J]. 南京林业大学学报（自然科学版）, 2021, 45(6): 24-30.
[5]	孙佳彤, 国艳娇, 李爽, 周晨光, 姜立泉, 李伟. 基于CRISPR/Cas9的毛果杨bHLH106转录因子的功能研究[J]. 南京林业大学学报（自然科学版）, 2021, 45(6): 15-23.
[6]	施季森. CRISPR:从“盲盒”基因编辑到“精准靶向”基因组编辑的未竟之旅[J]. 南京林业大学学报（自然科学版）, 2021, 45(6): 12-14.
[7]	王培龙, 杨妮, 张傲然, 唐努尔·塞力克, 李爽, 高彩球. 刚毛柽柳ThPCS1基因克隆与镉胁迫应答分析[J]. 南京林业大学学报（自然科学版）, 2021, 45(3): 71-78.
[8]	莫正海, 李风达, 苏文川, 曹凡, 彭方仁, 李永荣. 薄壳山核桃嫁接愈合过程中CiMYB46基因的克隆与表达分析[J]. 南京林业大学学报（自然科学版）, 2019, 43(5): 156-162.
[9]	刘晓威,杨秀艳,武海雯,刘肖艳,朱建峰,张华新. NaCl胁迫下红砂种子萌动期差异表达基因的转录组分析[J]. 南京林业大学学报（自然科学版）, 2019, 62(03): 28-36.
[10]	刘中原,姜波,吕佳欣,李新苹,高彩球. 刚毛柽柳Th2CysPrx基因的互作蛋白及其表达模式分析[J]. 南京林业大学学报（自然科学版）, 2019, 62(02): 86-92.
[11]	杨桂燕,于丽丽,赵玉琳,赵震,高彩球. 刚毛柽柳TheIF1A基因转入酵母的抗逆能力分析[J]. 南京林业大学学报（自然科学版）, 2014, 57(05): 62-66.
[12]	官民晓,刘雪梅,张妍,刘瀛,孙丰宾. 白桦SPL8转录因子基因的分离及转录表达分析[J]. 南京林业大学学报（自然科学版）, 2013, 56(03): 17-22.
[13]	张凯敏,王玉成,杨桂燕,高彩球. 柽柳ThPR1基因的克隆与表达分析[J]. 南京林业大学学报（自然科学版）, 2013, 56(02): 45-49.