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Exploring the regulatory role of non-coding RNAs in fiber development and direct regulation of GhKCR2 in the fatty acid metabolic pathway in upland cotton

文献类型： 外文期刊

作者： Wang, Jingjing 1 ; Wang, Xiaoyang 1 ; Wang, Liyuan 3 ; Nazir, Mian Faisal 1 ; Fu, Guoyong 1 ; Peng, Zhen 1 ; Chen, Baojun 1 ; Xing, Aishuang 1 ; Zhu, Mengchen 1 ; Ma, Xinli 1 ; Wang, Xiuxiu 1 ; Jia, Yinhua 1 ; Pan, Zhaoe 1 ; Wang, Liru 1 ; Xia, Yingying 1 ; He, Shoupu 1 ; Du, Xiongming 1 ;

作者机构： 1.Chinese Acad Agr Sci, Inst Cotton Res, Natl Key Lab Cotton Biobreeding & Integrated Utili, Anyang 455000, Peoples R China

2.Zhengzhou Univ, Natl Key Lab Cotton Biobreeding & Integrated Utili, Zhengzhou Res Base, Zhengzhou 455001, Peoples R China

3.Shandong Acad Agr Sci, Crop Res Inst, Jinan 250100, Peoples R China

4.Zhengzhou Univ, Natl Supercomp Ctr Zhengzhou, Zhengzhou 455001, Peoples R China

关键词： Fiber development; Whole transcriptome; Fatty acid synthesis

期刊名称：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES （ 影响因子：8.2； 五年影响因子：7.8 ）

ISSN： 0141-8130

年卷期： 2024 年 266 卷

页码：

收录情况： SCI

摘要： Cotton fiber holds immense importance as the primary raw material for the textile industry. Consequently, comprehending the regulatory mechanisms governing fiber development is pivotal for enhancing fiber quality. Our study aimed to construct a regulatory network of competing endogenous RNAs (ceRNAs) and assess the impact of non -coding RNAs on gene expression throughout fiber development. Through whole transcriptome data analysis, we identified differentially expressed genes (DEGs) regulated by non -coding RNA (ncRNA) that were predominantly enriched in phenylpropanoid biosynthesis and the fatty acid elongation pathway. This analysis involved two contrasting phenotypic materials (J02-508 and ZRI015) at five stages of fiber development. Additionally, we conducted a detailed analysis of genes involved in fatty acid elongation, including KCS , KCR , HACD , ECR , and ACOT , to unveil the factors contributing to the variation in fatty acid elongation between J02-508 and ZRI015. Through the integration of histochemical GUS staining, dual luciferase assay experiments, and correlation analysis of expression levels during fiber development stages for lncRNA MSTRG.44818.23 (MST23) and GhKCR2 , we elucidated that MST23 positively regulates GhKCR2 expression in the fatty acid elongation pathway. This identification provides valuable insights into the molecular mechanisms underlying fiber development, emphasizing the intricate interplay between non -coding RNAs and protein -coding genes.

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