植物生长素响应基因SAUR研究进展

doi:10.11924/j.issn.1000-6850.casb2023-0534

摘要/Abstract

摘要：

生长素是植物生长发育过程中重要的调节因子，植物通过生长素调节来实现自身的生长发育。SAUR基因家族作为生长素早期响应基因家族中的一员，是生长素信号转导途径中不可或缺的调节因子之一。为了研究SAUR基因在植物生长发育和逆境胁迫应答等生物学过程中的作用，分析了SAUR基因家族的生物信息学特征以及表达特性和调控机制，归纳了SAUR基因在植物细胞伸长生长、光介导的子叶和顶端弯钩打开的过程、花器官形成和果实发育以及胁迫应答等方面的功能，指出SAUR基因不仅在多个方面影响植物的生长发育，还参与了植物对非生物逆境胁迫的响应。本研究结果揭示了SAUR基因在多个层面影响植物生长发育的作用，并且对植物品种培育和分子机理研究提供了理论支持。

关键词: 生长素, SAUR基因家族, 基因功能, 表达模式, 生物信息, 调控机制, 生长发育, 非生物逆境胁迫

Abstract:

Auxin is an important regulatory factor in the process of plant growth and development, and plants achieve their own growth and development through the regulation of auxin. As a member of the early auxin response gene family, the SAUR gene family is one of the indispensable regulatory factors in the auxin signal transduction pathway. In order to study the role of SAUR genes in biological processes such as plant growth and development and stress response, the bioinformatics characteristics, expression patterns, and regulatory mechanisms of the SAUR gene family were analyzed. The functions of SAUR genes in plant cell elongation growth, light-mediated cotyledon and apical hook opening, flower organ formation, fruit development, and stress response were summarized. It was pointed out that SAUR genes not only affected plant growth and development in multiple aspects, but also participated in the response of plants to abiotic stress. This study provides a theoretical basis for future research on the molecular mechanisms of SAUR genes and the cultivation of plant varieties.

Key words: auxin, SAUR gene family, gene function, expression pattern, biological information, regulatory mechanism, growth and development, abiotic stress response

刘超逸, 王宇航. 植物生长素响应基因SAUR研究进展[J]. 中国农学通报, 2024, 40(18): 83-89.

LIU Chaoyi, WANG Yuhang. Plant Auxin Responsive Gene SAUR: A Review[J]. Chinese Agricultural Science Bulletin, 2024, 40(18): 83-89.

图/表 1

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物种	成员数（无内含子+有内含子）	保守结构域	保守基序数目	染色体定位	进化树分组数	CDS长度	蛋白分子量/kD		等电点	参考文献
桃	80(75+5)	Auxin_inducible super family、 PLN03090、Auxin_inducible	10	不均匀分布在8条染色体	12	225~634 bp	8.3074 ~ 23.3140		4.25~11.69	[19]
油棕	40(38+2)	Auxin_inducible	10	不均匀分布在14条染色体	4	305~8568 bp	11.23466~24.06348		4.52~11.04	[20]
谷子	72(59+13)	Auxin_inducible	15	不均匀分布在9条染色体	3	228~1122 bp	8.21~39.49		4.9~11.61	[9]
龙眼	68(52+16)	Auxin_inducible	12	不均匀分布在13条染色体	4	276~49223 bp		10.53~183.69	4.90~10.78	[21]
蓖麻	35(18+17)	Auxin_inducible	5	不均匀分布在9条染色体	3	56~1379 bp		48711.29~8242.64	4.48~10.61	[22]
黄瓜	62(39+23)	Auxin_inducible super family	8	不均匀分布在7条染色体	7	255~2241 bp		9.474~86.253	4.77~10.38	[8]
冬瓜	68(66+2)	Auxin_inducible	4	不均匀分布在9条染色体	7	225~573 bp		8.27~22.29	4.60~10.67	[11]
葡萄	64(59+5)	Auxin_inducible	3	不均匀分布在9条染色体	10	267~831 bp		—	4.97~10.62	[16]

物种	成员数（无内含子+有内含子）	保守结构域	保守基序数目	染色体定位	进化树分组数	CDS长度	蛋白分子量/kD		等电点	参考文献
桃	80(75+5)	Auxin_inducible super family、 PLN03090、Auxin_inducible	10	不均匀分布在8条染色体	12	225~634 bp	8.3074 ~ 23.3140		4.25~11.69	[19]
油棕	40(38+2)	Auxin_inducible	10	不均匀分布在14条染色体	4	305~8568 bp	11.23466~24.06348		4.52~11.04	[20]
谷子	72(59+13)	Auxin_inducible	15	不均匀分布在9条染色体	3	228~1122 bp	8.21~39.49		4.9~11.61	[9]
龙眼	68(52+16)	Auxin_inducible	12	不均匀分布在13条染色体	4	276~49223 bp		10.53~183.69	4.90~10.78	[21]
蓖麻	35(18+17)	Auxin_inducible	5	不均匀分布在9条染色体	3	56~1379 bp		48711.29~8242.64	4.48~10.61	[22]
黄瓜	62(39+23)	Auxin_inducible super family	8	不均匀分布在7条染色体	7	255~2241 bp		9.474~86.253	4.77~10.38	[8]
冬瓜	68(66+2)	Auxin_inducible	4	不均匀分布在9条染色体	7	225~573 bp		8.27~22.29	4.60~10.67	[11]
葡萄	64(59+5)	Auxin_inducible	3	不均匀分布在9条染色体	10	267~831 bp		—	4.97~10.62	[16]