Capsicum annuum
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ABSTRACT:
PROVIDER: PRJNA385548 | ENA |
REPOSITORIES: ENA
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Project description:We used a high-throughput proteomics method called label-free to compare protein abundance across a pepper CMS line and its isogenic maintainer line.This study explained the mechanisms of cytoplasmic male sterility and contribute to the improvement of pepper hybrid breeding.
2017-09-01 | PXD006104 | Pride
Project description:Background: The use of cytoplasmic male sterility (CMS) in F1 hybrid seed production of chili pepper is increasingly popular. However, the molecular mechanisms of cytoplasmic male sterility and fertility restoration remain poorly understood due to limited transcriptomic and genomic data. Therefore, we analyzed the difference between a CMS line 121A and its near-isogenic restorer line 121C in transcriptome level using next generation sequencing technology (NGS), aiming to find out critical genes and pathways associated with the male sterility. Results: We generated approximately 53 million sequencing reads and assembled de novo, yielding 85,144 high quality unigenes with an average length of 643 bp. Among these unigenes, 27,191 were identified as putative homologs of annotated sequences in the public protein databases, 4,326 and 7,061 unigenes were found to be highly abundant in lines 121A and 121C, respectively. Many of the differentially expressed unigenes represent a set of potential candidate genes associated with the formation or abortion of pollen. Conclusions: Our study profiled anther transcriptomes of a chili pepper CMS line and its restorer line. The results shed the lights on the occurrence and recovery of the disturbances in nuclear-mitochondrial interaction and provide clues for further investigations.
2013-07-03 | GSE45431 | GEO
Project description:Background: The use of cytoplasmic male sterility (CMS) in F1 hybrid seed production of chili pepper is increasingly popular. However, the molecular mechanisms of cytoplasmic male sterility and fertility restoration remain poorly understood due to limited transcriptomic and genomic data. Therefore, we analyzed the difference between a CMS line 121A and its near-isogenic restorer line 121C in transcriptome level using next generation sequencing technology (NGS), aiming to find out critical genes and pathways associated with the male sterility. Results: We generated approximately 53 million sequencing reads and assembled de novo, yielding 85,144 high quality unigenes with an average length of 643 bp. Among these unigenes, 27,191 were identified as putative homologs of annotated sequences in the public protein databases, 4,326 and 7,061 unigenes were found to be highly abundant in lines 121A and 121C, respectively. Many of the differentially expressed unigenes represent a set of potential candidate genes associated with the formation or abortion of pollen. Conclusions: Our study profiled anther transcriptomes of a chili pepper CMS line and its restorer line. The results shed the lights on the occurrence and recovery of the disturbances in nuclear-mitochondrial interaction and provide clues for further investigations. Anther transcriptomes of a chili pepper CMS line 121A and its nearisogenic restorer line 121C were generated by deep sequencing, using Illumina HiSeq 2000.
2013-07-03 | E-GEOD-45431 | biostudies-arrayexpress
Project description:Background: Pepper (Capsicum annuum L.) is a major cash crop throughout the world. Male sterility is an important characteristic in crop species that leads to a failure to produce functional pollen, and it has crucial roles in agricultural breeding and the utilization of heterosis. Objectives: In this study, we identified many crucial factors and important components in metabolic pathways in anther and pollen development, and elucidated the molecular mechanism related to pollen abortion in pepper. Methods: Pepper pollen was observed at different stages to detect the characteristics associated with male sterility and fertility. The phytohormone and oxidoreductase activities were detected in spectrophotometric and redox reaction assays, respectively. Proteins were extracted from male sterile and fertile pepper lines, and identified by TMT/iTRAQ (Tandem mass tags/isobaric tags for relative and absolute quantitation) and LC-MS/MS (liquid chromatograph-mass spectrometer) analysis. Differentially abundant proteins (DAPs) were analyzed based on Gene Ontology annotations and the Kyoto Encyclopedia of Genes and Genomes database according to |fold change)| > 1.3 and P value < 0.05. DAPs were quantified in the meiosis, tetrad, and binucleate stages by parallel reaction monitoring (PRM). Results: In this study, we screened and identified one male sterile pepper line with abnormal cytological characteristics in terms of pollen development. The peroxidase and catalase enzyme activities were significantly reduced and increased, respectively, in the male sterile line compared with the male fertile line. Phytohormone analysis demonstrated that the gibberellin, jasmonic acid, and auxin contents changed by different extents in the male sterile pepper line. Proteome analysis screened 1645 DAPs in six clusters, which were mainly associated with the chloroplast and cytoplasm based on their similar expression levels. According to proteome analysis, 45 DAPs were quantitatively identified in the meiosis, tetrad, and binucleate stages by PRM, which were related to monoterpenoid biosynthesis, and starch and sucrose metabolism pathways. Conclusions: We screened 1645 DAPs by proteomic analysis and 45 DAPs were related to anther and pollen development in a male sterile pepper line. In addition, the activities of peroxidase and catalase as well as the abundances of phytohormones such as gibberellin, jasmonic acid, and auxin were related to male sterility. The results obtained in this study provide insights into the molecular mechanism responsible for male sterility and fertility in pepper.
2022-05-19 | PXD031331 | Pride
Project description:Transcriptome Sequencing and De Novo Analysis of a Cytoplasmic Male Sterile Line and Its Near-Isogenic Restorer Line in Chili Pepper (Capsicum annuum L.)
| PRJNA198030 | ENA
Project description:Transcriptome Sequencing and De Novo Analysis for a Cytoplasmic Male Sterile Line and Its Near-Isogenic Restorer Line in Chili Pepper (Capsicum annuum L.)
| PRJDB2657 | ENA
Project description:Capsicum annuum maintainer line B351B mitochondrion sequence
| PRJNA785108 | ENA
Project description:Capsicum annuum CMS line B351A mitochondrion sequence
| PRJNA785107 | ENA
Project description:Cytoplasmic male sterility (CMS), a typically maternally inherited trait, causes a failure in producing functional pollen. Although the radish CMS has be widely used to produce hybrid varieties in breeding program, the molecular mechanism of CMS in radish is poorly understood. In this study, two radish CMS lines (HYBP-A and YH-A) and their corresponding maintainer lines (HYBP-B and YH-B) were used to identify genes potentially involving in CMS using Illumina pair-end sequencing. A total of 167.86 million clean sequence reads were generated from the eight libraries (two replicates for each line). These reads were eventually assembled into 130,240 unigenes. Of them, 67,173 (51.6%) unigenes were annotated for their function. Comparison of gene expression levels between CMS line and maintainer line revealed 5,893 differentially expressed genes (DEGs) in HYBP, and 3,739 DEGs inYH. There were 990 DEGs commonly identified in both HYBP and YH, with same direction of expression change in two CMS lines relative to their corresponding maintainer lines, which suggested these 990 DEGs is likely related to CMS of radish. The expression levels of 20 DEGs were further confirmed by real-time quantitative PCR (qRT-PCR). Two pathways and eight functional categories exhibited a significant enrichment with DEGs in HYBP, and one pathway and six functional categories were markedly enriched by DEGs in YH. Among these pathways/functional categories, four of them were enriched in both varieties. A series of candidate genes and pathways that may contribute to the CMS will be helpful for increasing our understanding for this trait in radish.
2016-01-21 | GSE65142 | GEO
Project description:Capsicum annuum Transcriptome or Gene expression
| PRJNA186495 | ENA