Expression of defense related genes in resistance and susceptible tobacco (Nicotiana tabacum) in response to Ralstonia solanacearum infection
Ontology highlight
ABSTRACT:
ORGANISM(S): Nicotiana tabacum
PROVIDER: GSE113473 | GEO | 2019/04/20
REPOSITORIES: GEO
Similar Datasets
Project description:Two ramie cultivars, Zhongzhu no 2(Z2) and Huazhu no 4 (H4), showed constructing adventitious root formation (ARF) rate. Comparative transcriptome analysis was performed to study gene expression profiles in Z2 and H4 ramie during adventitious root formation. Illumina sequencing yielded a total of 92,794,556,688 bases data, and about 301.47 M and 313.06 M raw reads for Z2 and H4 plants, respectively. After quality control, every library obtained over 43 million reads, which is enough for the quantitative analysis of gene expression. Using Trinity software, these clean reads were first assembled into 121,492 transcripts, finally into 66,881 unigenes with an average length of 1144.25 bp. About 148.74 M and 138.72 M clean reads of H4 and Z2 were mapped to reference genes via Bowtie, respectively. The ratio of mapped clean reads for eight libraries ranged from 74.47% to 75.38% (average: 74.8%). By comparing gene expression levels in Tm and CK ramie stems, we identified 772 DEGs in H4 plants during RPF, including 7220 up-regulated and 8154 down-regulated DEGs. We identified 1256 DEGs in Z2 plants during RPF, which included 779 up-regulated and 447 down-regulated DEGs. We also identified 1919 DEGs between Z2 and H4 plants. There were 1147 (731 up-regulate and 416 down-regulated) DEGs uniquely in Z2, and 603 (202 up-regulate and 461 down-regulated) DEGs uniquely in H4 plants. The two genotypes shared 109 DEGs, which indicates some common pathways during ARF.
2019-06-20 | GSE116063 | GEO
Project description:Purpose: The goals of this study are using RNA-seq to obtain cucumber and Botrytis cinerea transcriptome changes during infection Methods: mRNA profiles of anti-infection samples and interaction sample were generate by deep sequencing,using Illumina Hiseq 2500. The sequence reads that passed quality filters were analyzed at the transcript isoform level with two methods: BurrowsâWheeler Aligner (BWA) followed by ANOVA (ANOVA) and TopHat followed by Cufflinks. qRTâPCR validation was performed using SYBR Green assays Results: Using an optimized data analysis workflow,In total, 248,908,688 raw reads were generated; after removing low-quality reads and those containing adapter and poly-N, 238,341,648 clean reads remained to map the reference genome. There were 3,512 cucumber (differential expression genes) DEGs and 1,735 B. cinerea DEGs. GO enrichment and KEGG enrichment analysis were performed on these DEGs to study the interaction between cucumber and B. cinerea. To verify the reliability and accuracy of our transcriptome data, 5 cucumber DEGs and 5 B. cinerea DEGs were chosen for RT-PCR verification. Conclusions:To the best of our knowledge, this is the first analysis of large-scale transcriptome changes of cucumber during the infection of Botrytis cinerea. These results will increase our understanding of the molecular mechanisms of the cucumber defense Botrytis cinerea and may be used to protect plants against disasters caused by necrotrophic fungal pathogens. mRNA profiles of infection and anti-infection cucumber were generated by deep sequencing, using Illumina Hiseq 2500 .
2016-08-01 | E-GEOD-72191 | biostudies-arrayexpress
Project description:Digital gene expression (DGE) analysis was performed to study differentially expressed genes (DEGs) between CK and P. coffeae challenged (CH) roots of ramie. A total of 10.16 and 8.07 million clean reads were detected in the CK and CH libraries, respectively. A total of 137 genes were identified as DEGs, 117 and 20 of them were up- and down- regulated respectively, in response to P. coffeae infection. Roots samples of Pratylenchus coffeae infected(E2) and un-infected (E1) ramie were RNA-Seq sequenced to compare differented expressed genes.
2015-01-20 | E-GEOD-64974 | biostudies-arrayexpress
Project description:Purpose: Trichomes, developing from the epidermis of nearly all terrestrial plants, provide good structural resistance against insect herbivores and an excellent model for studying the molecular mechanisms underlying cell fate determination. Regulation of trichomes in Rosids has been well characterized. However, little is known about the cell proliferation molecular processes during multicellular trichome formation in Asterids. Methods: The transcriptomes of between Wov transgenic and wild-type tobacco by RNA-seq analysis were evaluated using the Illumina HiSeq™ 2000 sequencing platform. Raw sequences were filtered and the resulting sets of clean reads were used for the following analysis by Tophat and DEGseq software. qRT–PCR validation was performed using SYBR Green assays. Results: In this study, we identified two point mutations in a novel allele (Wov) at Wo locus. Ectopic expression of Wov in tobacco and potato induces much more trichome formation than wild type. To gain new insights into the underlying mechanisms during the processes of these trichomes formation, we compared the gene expression profiles between Wov transgenic and wild-type tobacco by RNA-seq analysis. A total of 544 co-DEGs were detected between transgenic and wild-type tobacco. Functional assignments of the co-DEGs indicated that 33 reliable pathways are altered in transgenic tobacco plants. The most noticeable pathways are fatty acid metabolism, amino acid biosynthesis and metabolism, and plant hormone signal transduction. Results suggest that these enhanced processes are critical for the cell proliferation during multicellular trichome formation in transgenic plants. In addition, the transcriptional levels of homologues of trichome regulators in Rosids were not significantly changed, whereas homologues of genes (Wo and SlCycB2) in Asterids were significantly upregulated in Wov transgenic tobacco plants. Conclusions: This study presents a global picture of the gene expression changes induced by Wov- gene in tobacco. And the results provided us new insight into the molecular processes controlling multicellular formation in tobacco. Furthermore, we inferred that trichomes in solanaceous species might share a common network. The transcriptomes of between Wov transgenic and wild-type tobacco by RNA-seq analysis were evaluated, in duplicate, using the Illumina sequencing platform.
2015-08-25 | E-GEOD-72310 | biostudies-arrayexpress
Project description:Digital gene expression (DGE) analysis was performed to study differentially expressed genes (DEGs) between CK and P. coffeae challenged (CH) roots of ramie. A total of 10.16 and 8.07 million clean reads were detected in the CK and CH libraries, respectively. A total of 137 genes were identified as DEGs, 117 and 20 of them were up- and down- regulated respectively, in response to P. coffeae infection.
2015-01-20 | GSE64974 | GEO
Project description:Purpose: To characterize the functional implication of autophagy in the wheat response to stress, the key genes contributing in mediated salt tolerance of wheat seedlings through 3-MA were identified in normal or salt stress conditions in the presence or absence of added 3-MA by the transcriptome profiles. Methods: Four days after NaCl and 3-MA treatment, the roots and the third leaves were collected respectively with every 10 of them being mixed as one biological replicate for each treatment. Every treatment had four biological replicates. The wheat root and leaves mRNA profiles were generated by deep sequencing, in triplicate, using Illumina GAIIx. The sequence reads that passed quality filters were analyzed at the transcript isoform level with two methods: Burrows–Wheeler Aligner (BWA) followed by ANOVA (ANOVA) and TopHat followed by Cufflinks. qRT–PCR validation was performed using TaqMan and SYBR Green assays. Results: The RNA-Seq data had high quality and reliable results were obtained from the transcriptome assembly. A high correlation between biological replicates was observed for all treatments, which indicated that the four biological replicates were reliable in this study. Based on the principal component analysis (PCA), a clear separation between the NaCl-treated group and controls could be observed. The Q30 percentage (sequences with sequencing error rate lower than 0.1%) was over 94%, and the average GC content of the RNA-seq reads was 55.46%. After removing the adaptor and low-quality sequence, each library received 68310810-83844286 clean reads. These clean reads were mapped to the reference genome with match ratios in the range of 93.6%-95.9%, and 120744 genes predicted from the genome were found to be expressed (with FPKM > 0), including 25180 annotated genes in wheat genome. 3-MA treatment shifted the transcriptome a salt-stressed wheat seedling. The up-regulated DEGs and DEMs were increased, and the down-regulated DEGs and DEMs were decreased in 3-MA-added plants under NaCl stress condition. The study may help us understand the mechanism for 3-MA mediated salt tolerance and provide a theoretical basis for autophagy regulated salt response in wheat seedlings. Conclusions: 3-MA treatment shifted the transcriptome a salt-stressed wheat seedling. The up-regulated DEGs and DEMs were increased, and the down-regulated DEGs and DEMs were decreased in 3-MA-added plants under NaCl stress condition. The study may help us understand the mechanism for 3-MA mediated salt tolerance and provide a theoretical basis for autophagy regulated salt response in wheat seedlings.
2021-12-15 | GSE166260 | GEO
Project description:Purpose: Trichomes, developing from the epidermis of nearly all terrestrial plants, provide good structural resistance against insect herbivores and an excellent model for studying the molecular mechanisms underlying cell fate determination. Regulation of trichomes in Rosids has been well characterized. However, little is known about the cell proliferation molecular processes during multicellular trichome formation in Asterids. Methods: The transcriptomes of between Wov transgenic and wild-type tobacco by RNA-seq analysis were evaluated using the Illumina HiSeq™ 2000 sequencing platform. Raw sequences were filtered and the resulting sets of clean reads were used for the following analysis by Tophat and DEGseq software. qRT–PCR validation was performed using SYBR Green assays. Results: In this study, we identified two point mutations in a novel allele (Wov) at Wo locus. Ectopic expression of Wov in tobacco and potato induces much more trichome formation than wild type. To gain new insights into the underlying mechanisms during the processes of these trichomes formation, we compared the gene expression profiles between Wov transgenic and wild-type tobacco by RNA-seq analysis. A total of 544 co-DEGs were detected between transgenic and wild-type tobacco. Functional assignments of the co-DEGs indicated that 33 reliable pathways are altered in transgenic tobacco plants. The most noticeable pathways are fatty acid metabolism, amino acid biosynthesis and metabolism, and plant hormone signal transduction. Results suggest that these enhanced processes are critical for the cell proliferation during multicellular trichome formation in transgenic plants. In addition, the transcriptional levels of homologues of trichome regulators in Rosids were not significantly changed, whereas homologues of genes (Wo and SlCycB2) in Asterids were significantly upregulated in Wov transgenic tobacco plants. Conclusions: This study presents a global picture of the gene expression changes induced by Wov- gene in tobacco. And the results provided us new insight into the molecular processes controlling multicellular formation in tobacco. Furthermore, we inferred that trichomes in solanaceous species might share a common network.
2015-08-25 | GSE72310 | GEO
Project description:Purpose: we conducted a six time-point transcriptomic analysis using two tobacco cultivars with contrasting cold responses, Taiyan8 tobacco (TT, cold susceptibility) and Yanyan97 tobacco (YT, cold resistance). Methods: mRNA profiles of Tobacco seedlings from CK and cold-treated plants were generated by deep sequencing, in triplicate, usingIllumina Hiseq4500. The sequence reads that passed quality filters were analyzed at the transcript isoform level with methods: hisat2 (v2.0.5), SAMtools (v1.9). StringTie (v1.3.4d) and FeatureCounts (v1.6.4) Results: We found that both cultivars had common mechanisms to cope with cold stress, including common differentially expressed genes (DEGs), similar time-point-related differential expression profile of genes, and similar NtCBF gene co-expression modules, suggesting conservation of adaptation strategies for cold responses. Importantly, we found that YT experienced DEGs even under normal growth condition and had less DEGs in early stage of cold stress (0.5-2 h) when compared to TT, reflecting occurrence of genotype-dependent gene transcription. Moreover, a gene co-expression module (brown) with stress-related genes up-regulated in YT instead of TT at late stage (4-8 h), which might contribute to contrasting phenotypic changes during cold stress between TT and YT. Conclusions: our study provides valuable resources for transcriptomic studies of cold responses in plants. It also helps to identify key cold responsive genes for genetic manipulation for breeding of tobacco cultivars in the future.
2022-08-03 | GSE173352 | GEO
Project description:To investigate the regulatory mechanisms of GmNFYA in salt stress, leaves and roots of transgenic plants and JACK plants were collected for RNA extraction and sequencing. Clean reads of RNA-sequencing were mapped to soybean genome and genes that had a 2 fold increase or 50% decrease, compared to JACK, were defined as differential expressed genes (DEGs).
2021-05-01 | GSE173640 | GEO
Project description:Purpose: The goals of this study are using RNA-seq to obtain cucumber and Botrytis cinerea transcriptome changes during infection Methods: mRNA profiles of anti-infection samples and interaction sample were generate by deep sequencing,using Illumina Hiseq 2500. The sequence reads that passed quality filters were analyzed at the transcript isoform level with two methods: Burrows–Wheeler Aligner (BWA) followed by ANOVA (ANOVA) and TopHat followed by Cufflinks. qRT–PCR validation was performed using SYBR Green assays Results: Using an optimized data analysis workflow,In total, 248,908,688 raw reads were generated; after removing low-quality reads and those containing adapter and poly-N, 238,341,648 clean reads remained to map the reference genome. There were 3,512 cucumber (differential expression genes) DEGs and 1,735 B. cinerea DEGs. GO enrichment and KEGG enrichment analysis were performed on these DEGs to study the interaction between cucumber and B. cinerea. To verify the reliability and accuracy of our transcriptome data, 5 cucumber DEGs and 5 B. cinerea DEGs were chosen for RT-PCR verification. Conclusions:To the best of our knowledge, this is the first analysis of large-scale transcriptome changes of cucumber during the infection of Botrytis cinerea. These results will increase our understanding of the molecular mechanisms of the cucumber defense Botrytis cinerea and may be used to protect plants against disasters caused by necrotrophic fungal pathogens.
2016-08-01 | GSE72191 | GEO