Meixiu Wu's research while affiliated with Huazhong Agricultural University and other places

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Publications (1)


An overview of differentially expressed genes (DEGs) in ECD04 upon P. brassicae infection. (A) Phenotypes of ECD04 after inoculation with PbZj at different time points. (B) Number of DEGs in ECD04 at 18th, 24th and 30th day post inoculation (dpi). (C) Venn diagram analyses of the total numbers of DEGs between 18 dpi, 24 dpi, and 30 dpi. (D) Heatmaps showed the FPKM of common differential expression genes at three time points.
Gene Ontology (GO) pathway assignments for DEGs at three time points, separately.
Weighted gene co-expression network analysis of relative differentially expressed genes. (A) Hierarchical cluster dendrogram showed co-expression modules. Each leaf (short vertical line) in the tree represented one gene. The genes were clustered based on dissimilarity measure. The major tree branches, corresponded with the color rows below the dendrogram, constituted the modules. (B) KEGG enrichment of “turquoise” module genes. (C) GO enrichment of “turquoise” module genes. (D) Interaction network of the identified hub genes in “turquoise” module. (E) Interaction network of “Plant-pathogen interaction” in “turquoise” module.
Identification and characterization of miRNAs in ECD04 upon P. brassicae infection. (A) Length distribution of miRNAs. (B) Preference of the first nucleotide for miRNAs. (C) Number of DEMs in ECD04 at 18, 24 and 30 dpi. (D) Heatmap of differentially expressed miRNAs. M18, mock 18 dpi; I18, inoculation 18 dpi; M24, mock 24 dpi; I24, inoculation 24 dpi; M30, mock 30 dpi; I30, inoculation 30 dpi.
MiRNA-Target pairs involved in resistance to P. brassicae. (A) A combined view of the expression level of selected coherent pairs of differentially expressed miRNAs and their predicted target genes. (B, C) Degradome sequencing of Bra-miR395a-3p with its target APS4 (BraA06t023661E) in mock (B) or inoculation (C) conditions.

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Multiomics analysis of a resistant European turnip ECD04 during clubroot infection reveals key hub genes underlying resistance mechanism
  • Article
  • Full-text available

May 2024

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15 Reads

Frontiers in Plant Science

Frontiers in Plant Science

Xueqing Zhou

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Ting Zhong

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Meixiu Wu

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[...]

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The clubroot disease has become a worldwide threat for crucifer crop production, due to its soil-borne nature and difficulty to eradicate completely from contaminated field. In this study we used an elite resistant European fodder turnip ECD04 and investigated its resistance mechanism using transcriptome, sRNA-seq, degradome and gene editing. A total of 1751 DEGs were identified from three time points after infection, among which 7 hub genes including XTH23 for cell wall assembly and two CPK28 genes in PTI pathways. On microRNA, we identified 17 DEMs and predicted 15 miRNA-target pairs (DEM-DEG). We validated two pairs (miR395-APS4 and miR160-ARF) by degradome sequencing. We investigated the miR395-APS4 pair by CRISPR-Cas9 mediated gene editing, the result showed that knocking-out APS4 could lead to elevated clubroot resistance in B. napus. In summary, the data acquired on transcriptional response and microRNA as well as target genes provide future direction especially gene candidates for genetic improvement of clubroot resistance on Brassica species.

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