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Whole-transcriptome analysis and construction of ceRNA-miRNA-target gene regulatory networks in anther development of Chinese cabbage (Brassica campestris L. ssp. pekinensis) [Anther & mixed parts miRNA-seq]

ABSTRACT: Whole-transcriptome analysis and construction of ceRNA-miRNA-target gene regulatory networks in anther development of Chinese cabbage (Brassica campestris L. ssp. pekinensis) [Anther & mixed parts miRNA-seq]

PROVIDER: PRJNA720627 | ENA |

REPOSITORIES: ENA

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Whole-transcriptome analysis and construction of ceRNA-miRNA-target gene regulatory networks in anther development of Chinese cabbage (Brassica campestris L. ssp. pekinensis) [Anther & mixed parts miRNA-seq]

Project description:Anther development is a complex process, and the study of its molecular mechanism has an important impact on plant breeding. This study aims to identify microRNA (miRNA), mRNA, long non-coding RNA (lncRNA), and circular RNA (circRNA) related to anther development of Chinese cabbage, so as to construct competitive endogenous RNA (ceRNA) regulatory networks and provide valuable knowledge for the exploration of pollen development mechanism of Chinese cabbage. A total of 9055 mRNA, 585 miRNA, 1344 lncRNA, and 165 circRNA were identified as differentially expressed in the anther of Chinese cabbage compared with Mix (roots, stems and leaves) by whole-transcriptome sequencing. The anther-related ceRNA-miRNA-target gene regulatory network through miRNA targeting relationships was constructed and 450 pairs of ceRNA relationships, including 97 DEmiRNA-DEmRNA, 281 DEmiRNA-DElncRNA, and 23 DEmiRNA-DEcircRNA interactions were obtained in Chinese cabbage. The genes in the ceRNA network were enriched in the pathways including starch and sucrose metabolism, carbon metabolism, pyruvate metabolism and carbon fixation in photosynthetic organisms, plant hormone signal transduction, and RNA degradation. This study identified some important genes and their interaction lncRNAs, circRNAs, and miRNAs involved in microsporogenesis (BraA06g035480.3C), tapetum and callose layer development (BraA09g009280.3C, BraA04g028920.3C, and BraA10g022680.3C etc), pollen wall formation (BraA06g000980.3C, BraA02g023130.3C, and BraA10g029650.3C etc), and anther dehiscence (BraA10g027200.3C, BraA04g023740.3C, and BraA04g030860.3C etc). Additionally, we analyzed the promoter activity of six anther predominant expression genes, and the results showed that they were all expressed specifically in the anther of Chinese cabbage. This study lay the foundation for further research on the molecular mechanism of anther growth and development.

2022-02-23 | GSE171706 | GEO

2022-02-23 | GSE171705 | GEO

Project description:Whole-transcriptome analysis and construction of ceRNA-miRNA-target gene regulatory networks in anther development of Chinese cabbage (Brassica campestris L. ssp. pekinensis) [Anther & mixed parts mRNA]

| PRJNA720628 | ENA

miR167 limits anther growth to potentiate anther dehiscence

Project description:In flowering plants, anther dehiscence and pollen release are essential for sexual reproduction. Anthers dehisce after cell wall degradation weakens stomium cell junctions in each anther locule, and desiccation creates mechanical forces that open the locules. Either effect or both together may break stomium cell junctions. The microRNA miR167 negatively regulates ARF6 and ARF8, which encode Auxin Response transcription Factors. Arabidopsis mARF6 or mARF8 plants with mutated miR167 target sites have defective anther dehiscence and ovule development. Null mir167a mutations recapitulated mARF6 and mARF8 anther and ovule phenotypes, indicating that MIR167a is the main miR167 precursor gene that delimits ARF6 and ARF8 expression in these organs. Anthers of mir167a or mARF6/8 plants overexpressed genes encoding cell wall loosening functions associated with cell expansion, and grew too large starting at flower stage 11. Experimental desiccation enabled dehiscence of miR167-deficient anthers, indicating competence to dehisce. Conversely, high humidity conditions delayed anther dehiscence in wild-type flowers. These results support a model in which miR167-mediated anther growth arrest permits anther dehiscence. Without miR167 regulation, excess anther growth delays dehiscence by prolonging desiccation.

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Whole-transcriptome analysis and construction of vernalization-related ceRNA-miRNA-target gene regulatory network in Chinese cabbage (Brassica campestris L. ssp. pekinensis) [seed miRNA]

Project description:The transition from vegetative growth to reproductive growth involves many pathways. Vernalization is crucial to the formation of floral organs, the regulation of flowering time and plant breeding. The purpose of this study was to identify the mRNA, microRNA (miRNA), long non-coding RNA (lncRNA), and circular RNA (circRNA) related to vernalization of Chinese cabbage, and to construct a competitive endogenous RNA (ceRNA) network, so as to provide valuable information for exploring the molecular mechanism of vernalization of Chinese cabbage. Results: The results of whole-transcriptome sequencing showed that 2702 mRNAs, 151 lncRNAs, 16 circRNA, and 233 miRNAs were differentially expressed in vernalized (‘Ver’) and non-vernalized (‘Nor’) seeds of Chinese cabbage. Some transcription factors and regulatory proteins that play important roles in vernalization pathway have been identified, such as the transcription factors of WRKY, MYB, NAC, bHLH, and MADS-box, zinc finger protein CONSTANS like gene and B3 domain protein. We constructed vernalization-related ceRNA-miRNA-target gene network and obtained 199 pairs of ceRNA relationships, including 108 DEmiRNA-DEmRNA, 67 DEmiRNA-DElncRNA, and 12 DEmiRNA-DEcircRNA interactions in Chinese cabbage. Meanwhile, several important vernalization-related genes and their interacting lncRNAs, circRNAs, and miRNAs were identified, which were involved in the regulation of flowering time, floral organ formation, bolting and flowering. Conclusions: The candidate differentially expressed mRNA, miRNA, lncRNA and circRNA for vernalization of Chinese cabbage were identified by the whole-transcriptome sequencing, and the ceRNA network was constructed. This study laid a foundation for further study on the molecular mechanism of vernalization in Chinese cabbage.

2021-11-17 | GSE171708 | GEO

Comparative expression profiling of miRNA during anther development in genetic male sterile and wild type cotton [small RNA]

Project description:Genetic male sterility (GMS) in cotton (Gossypium hirsutum) plays an important role in the utilization of hybrid vigor. However, the molecular mechanism of the GMS is still unclear. While numerous studies have demonstrated that microRNAs (miRNA) regulate flower and anther development, whether different small RNA regulations exist in GMS and its wild type is unclear. To investigate the global expression and complexity of small RNAs during cotton anther development, three small RNA libraries were constructed from the anthers of three development stages each from fertile wild type (WT) and its GMS mutant cotton.

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Comparative expression profiling of miRNA during anther development in genetic male sterile and wild type cotton [small RNA]

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Whole-transcriptome analysis and construction of vernalization-related ceRNA-miRNA-target gene regulatory network in Chinese cabbage (Brassica campestris L. ssp. pekinensis) [seed miRNA]

Project description:Whole-transcriptome analysis and construction of vernalization-related ceRNA-miRNA-target gene regulatory network in Chinese cabbage (Brassica campestris L. ssp. pekinensis) [seed miRNA]

| PRJNA720625 | ENA

Whole-transcriptome analysis and construction of vernalization-related ceRNA-miRNA-target gene regulatory network in Chinese cabbage (Brassica campestris L. ssp. pekinensis) [seed mRNA]

2021-11-17 | GSE171707 | GEO

miR167 limits anther growth to potentiate anther dehiscence

Project description:miR167 limits anther growth to potentiate anther dehiscence

| PRJNA505255 | ENA