Transcriptome analysis reveals the potential lncRNA-mRNA modules involved in genetic male sterility and fertility of Chinese cabbage (brassica rapa L. ssp. pekinensis)
文献类型： 外文期刊
作者： Wei, Xiaochun 1 ; Wang, Xiaoqing 1 ; Zhao, Yanyan 1 ; Chen, Weiwei 2 ; Nath, Ujjal Kumar 3 ; Yang, Shuangjuan 1 ; Su, Henan 1 ; Wang, Zhiyong 1 ; Zhang, Wenjing 1 ; Tian, Baoming 2 ; Wei, Fang 1 ; Yuan, Yuxiang 1 ; Zhang, Xiaowei 1 ;
作者机构： 1.Zhengzhou Univ, Inst Vegetables, Grad T&R Base, Henan Acad Agr Sci, Zhengzhou 450002, Henan, Peoples R China
2.Zhengzhou Univ, Sch Agr Sci, Zhengzhou 450001, Henan, Peoples R China
3.Bangladesh Agr Univ, Dept Genet & Plant Breeding, Mymensingh 2202, Bangladesh
关键词： Chinese cabbage; Genic male sterility; GO analysis; LncRNA
期刊名称：BMC PLANT BIOLOGY （ 影响因子：5.3； 五年影响因子：5.9 ）
ISSN： 1471-2229
年卷期： 2024 年 24 卷 1 期
页码：
收录情况： SCI
摘要： Background Long non-coding RNAs (lncRNAs) play a crucial role in regulating gene expression vital for the growth and development of plants. Despite this, the role of lncRNAs in Chinese cabbage (Brassica rapa L. ssp. pekinensis) pollen development and male fertility remains poorly understood.Results In this study, we characterized a recessive genic male sterile mutant (366-2 S), where the delayed degradation of tapetum and the failure of tetrad separation primarily led to the inability to form single microspores, resulting in male sterility. To analyze the role of lncRNAs in pollen development, we conducted a comparative lncRNA sequencing using anthers from the male sterile mutant line (366-2 S) and the wild-type male fertile line (366-2 F). We identified 385 differentially expressed lncRNAs between the 366-2 F and 366-2 S lines, with 172 of them potentially associated with target genes. To further understand the alterations in mRNA expression and explore potential lncRNA-target genes (mRNAs), we performed comparative mRNA transcriptome analysis in the anthers of 366-2 S and 366-2 F at two stages. We identified 1,176 differentially expressed mRNAs. Remarkably, GO analysis revealed significant enrichment in five GO terms, most notably involving mRNAs annotated as pectinesterase and polygalacturonase, which play roles in cell wall degradation. The considerable downregulation of these genes might contribute to the delayed degradation of tapetum in 366-2 S. Furthermore, we identified 15 lncRNA-mRNA modules through Venn diagram analysis. Among them, MSTRG.9997-BraA04g004630.3 C (beta-1,3-glucanase) is associated with callose degradation and tetrad separation. Additionally, MSTRG.5212-BraA02g040020.3 C (pectinesterase) and MSTRG.13,532-BraA05g030320.3 C (pectinesterase) are associated with cell wall degradation of the tapetum, indicating that these three candidate lncRNA-mRNA modules potentially regulate pollen development.Conclusion This study lays the foundation for understanding the roles of lncRNAs in pollen development and for elucidating their molecular mechanisms in regulating male sterility in Chinese cabbage.
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