棉花纤维发育的分子机理研究进展

doi:10.11963/cs20210076

摘要/Abstract

摘要：

棉纤维不仅是最重要的纺织工业原料,也是研究植物细胞分化、伸长以及细胞壁合成的理想模型。棉纤维细胞的分化和发育受复杂的、相互关联的调控网络所控制。转录因子、功能基因、植物激素、非编码RNA以及表观遗传修饰在棉纤维发育过程中皆起重要的调控作用。随着不同棉花基因组的组装和重测序及关联分析工作的展开,越来越多的调控棉纤维发育的关键因子被挖掘,对进一步解析棉花纤维发育的分子调控机制及助力棉花生物育种具有重要的意义。

关键词: 棉花; 纤维发育; 分子机理; 转录因子; 植物激素; 功能基因; 表观修饰

Abstract:

Cotton fiber is not only the most important raw material for textile industry, but also an ideal model for studying plant cell differentiation, elongation, and cell wall synthesis. The differentiation and development of cotton fiber is regulated by a complex and interrelated regulatory network. Transcription factors, functional genes, plant hormones, non-coding RNAs, and epigenetic modifications all play important regulatory roles during cotton fiber development. With the assembly, resequencing, and association analysis of different cotton genomes, more and more key factors regulating cotton fiber development have been uncovered, which is of great significance for further elucidating the molecular regulation mechanism of cotton fiber development and helping cotton biological breeding.

Key words: cotton; fiber development; molecular mechanism; transcription factor; plant hormone; functional gene; epigenetic modification

上官小霞,曹俊峰,杨琴莉,吴霞. 棉花纤维发育的分子机理研究进展[J]. 棉花学报, 2022, 34(1): 33-47.

Shangguan Xiaoxia,Cao Junfeng,Yang Qinli,Wu Xia. Research progress on the molecular mechanism of cotton fiber development[J]. Cotton Science, 2022, 34(1): 33-47.

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图/表 3

表1

调控棉花纤维发育的关键转录因子"

基因家族 Gene family	基因 Gene	功能 Function	参考文献 Reference
MYB	GaMYB2	正调控表皮毛发育和纤维起始 Positively regulate trichome development and fiber initiation	[9]
	GhMYB3	正调控纤维起始和伸长 Positively regulate fiber initiation and elongation	[10]
	GhMYB109	正调控纤维起始和伸长 Positively regulate fiber initiation and elongation	[11]
	GhCPC	负调控纤维起始和伸长 Negativly regulate fiber initiation and elongation	[12]
	GhMYB7	正调控纤维次生壁加厚 Positively regulate fiber secondary wall deposition	[23]
	GhMYB25	正调控叶表皮毛发育和纤维起始 Positively regulate leaf trichome development and fiber initiation	[25]
	GhMYB25-like	正调控纤维起始 Positively regulate fiber initiation	[26]
	GhMML3	正调控纤维起始 Positively regulate fiber initiation	[27]
	GhMML4	正调控纤维起始 Positively regulate fiber initiation	[28]
	GhMYB46	可能正调控纤维次生壁加厚 May positively regulate fiber secondary wall deposition	[32]
	GhMYB212	正调控纤维伸长 Positively regulate fiber elongation	[33]
bHLH	GhDEL65	正调控纤维伸长 Positively regulate fiber elongation	[13]
	GhPRE1	正调控纤维伸长 Positively regulate fiber elongation	[19]
WD repeat	GhTTG1	正调控纤维起始 Positively regulate fiber initiation	[14]
	GhTTG3	正调控纤维起始 Positively regulate fiber initiation	[14]
HD-ZIP	GaHOX1	正调控表皮毛发育和纤维起始 Positively regulate trichome development and fiber initiation	[16]
	GhHOX3	正调控纤维伸长 Positively regulate fiber elongation	[17]
	GhHD-1	正调控纤维起始和伸长 Positively regulate fiber initiation and elongation	[18]
TCP	GhTCP4	正调控纤维次生壁加厚 Positively regulate secondary cell wall deposition	[22]
NAC	GhFSN1	正调控纤维次生壁加厚 Positively regulate fiber secondary cell wall deposition	[31]
WRKY	GhWRKY16	正调控纤维起始和伸长 Positively regulate fiber initiation and elongation	[34]

表1

表2

调控棉花纤维发育的主要功能基因"

基因类型 Gene types	基因 Gene	基因功能 Gene function	参考文献 Reference
细胞骨架相关基因 Cytoskeleton-related genes	GhTUA9	可能正调控纤维伸长 May positively regulate fiber elongation	[35]
	GhTUB1	可能正调控纤维伸长 May positively regulate fiber elongation	[36]
	GhACT1	正调控纤维伸长 Positively regulate fiber elongation	[37]
	GhACT17D	正调控纤维伸长 Positively regulate fiber elongation	[38]
	GhADF1	负调控纤维伸长和次生壁加厚 Negativly regulate fiber elongation and secondary wall deposition	[39]
	GhPFN2	负调控纤维伸长 Negativly regulate fiber elongation	[40]
细胞壁松弛相关基因 Cell wall relaxation- related genes	GhEXP1	可能正调控纤维伸长 May positively regulate fiber elongation	[41]
细胞壁松弛相关基因 Cell wall relaxation- related genes	GhEXP2	可能正调控纤维伸长 May positively regulate fiber elongation	[41]
	GhRDL1	正调控纤维伸长 Positively regulate fiber elongation	[43]
	GhEXPA1	正调控纤维伸长 Positively regulate fiber elongation	[43]
蔗糖合酶基因 Sucrose synthase genes	Sus	正调控纤维起始和伸长 Positively regulate fiber initiation and elongation	[46]
	GhsusA1	正调控纤维伸长和次生壁加厚 Positively regulate fiber elongation and secondary wall deposition	[47]
糖转运蛋白基因 Sucrose transporter genes	GhSWEET12	正调控纤维伸长 Positively regulate fiber elongation	[33]
	GhSCP2D	正调控纤维伸长 Positively regulate fiber elongation	[48]
液泡转化酶基因 Vacuolar invertase gene	GhVIN1	正调控纤维起始和伸长 Positively regulate fiber initiation and elongation	[49]
脂类代谢基因 Lipid metabolism gene	GhCER6	可能正调控纤维伸长 May positively regulate fiber elongation	[51]
其他基因 Other genes	GhFLA1	正调控纤维起始和伸长 Positively regulate fiber initiation and elongation	[44]
	GhGRAM31	正调控纤维伸长 Positively regulate fiber elongation	[53]

表2

表3

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