Female gametophyte development in sugarcane
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ABSTRACT:
PROVIDER: PRJEB44944 | ENA |
REPOSITORIES: ENA
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Project description:This dataset provides the transcriptome of the central cell of the female gametophyte from Arabidopsis thaliana.
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Project description:Pollen is the male gametophyte of land plants. Proper development and maturation of pollen is necessary for the successful reproduction of seed plants. This process involves sophisticated coordination between sporophytic and gametophytic tissues in anthers. To advance the mechanistic studies of anther development, additional players need to be discovered for a comprehensive understanding of the underlying regulatory network. Here we show that the Arabidopsis dual specificity tyrosine phophorylated and regulated kinase (DRYK), AtYAK1, is essential for development of rosette leaves and the male but not female gametophyte in Arabidopsis. Arabidopsis mutant plants carrying a mutation in AtYAK1 produce developmentally stalled microspores, likely because of the defects in the two consecutive mitosis steps in the post-meiotic maturation process of pollen. The mutation of AtYAK1 has a significant effect on gene expression programs in developing pollen. Transcritpome analysis of atyak1 revealed downstream genes in families of protein kinases, transporters and transcription factors, which potentially contribute to pollen development. This study represents the first molecular characterization of DYRK in the plant kingdom. Our results also imply that the regulation of cytokinesis by DYRKs is evolutionally conserved in fungus, fruit fly, animals and plants.
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Project description:RNA-Seq of the different life history stages in Bostrychia moritziana (male gametophyte, female gametophyte, tetrasporophyte)
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Project description:Pollen is the male gametophyte of land plants. Proper development and maturation of pollen is necessary for the successful reproduction of seed plants. This process involves sophisticated coordination between sporophytic and gametophytic tissues in anthers. To advance the mechanistic studies of anther development, additional players need to be discovered for a comprehensive understanding of the underlying regulatory network. Here we show that the Arabidopsis dual specificity tyrosine phophorylated and regulated kinase (DRYK), AtYAK1, is essential for development of rosette leaves and the male but not female gametophyte in Arabidopsis. Arabidopsis mutant plants carrying a mutation in AtYAK1 produce developmentally stalled microspores, likely because of the defects in the two consecutive mitosis steps in the post-meiotic maturation process of pollen. The mutation of AtYAK1 has a significant effect on gene expression programs in developing pollen. Transcritpome analysis of atyak1 revealed downstream genes in families of protein kinases, transporters and transcription factors, which potentially contribute to pollen development. This study represents the first molecular characterization of DYRK in the plant kingdom. Our results also imply that the regulation of cytokinesis by DYRKs is evolutionally conserved in fungus, fruit fly, animals and plants. 2 biological replicates were performed for wt and 2 different alleles of ayak1 mutants (atyak1-1 and atyak1-2)
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Project description:Transcriptome profiling of three developmental stages of immature male gametophyte intobacco (Nicotiana tabacum)
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Project description:Sugarcane is an important crop in tropical regions of the world, producing a very large biomass and accumulating large amounts of sucrose in the stem. In this study, we present the first report of transcript profiling using the GeneChip Sugarcane Genome Array. We have identified transcripts that are differentially expressed in the sugarcane stem during development by expression profiling using the array and total RNA derived from three disparate stem tissues (meristem, internodes 1-3; internode 8; internode 20) from four replicates of the sugarcane variety Q117 grown in the field. We have identified 119 transcripts that were highly differentially expressed with stem development and have characterised members of the cellulose synthase (CesA) and cellulose synthase-like (Csl) gene families which displayed coordinated expression during stem development. In addition, we determined that many other transcripts involved in cell wall metabolism and lignification were also co-expressed with members of the CesA and Csl gene families, offering additional insights into the dynamics of primary and secondary cell wall synthesis in the developing sugarcane stem. Keywords: stem development profile
2006-11-19 | GSE5021 | GEO
Project description:This dataset provides the transcriptome of the central cell of the female gametophyte from Arabidopsis thaliana. We sequenced two biological replicates. Each replicate started with a pool of 450 central cells collected using laser-assisted microdissection (LAM). Libraries were prepared as described in DOI:10.1038/NMETH.1315. Each library was sequenced on one eight of a slide on the AB SOLiD platform (version 3). IMPORTANT: In the alignment files (.bam), we named the mitochondrial and the chloroplastidial chromosomes ChrM and ChrC. This is different from the "chloroplast" and "mitochondrium" names in the whole genome fasta file available on TAIR.
2012-01-26 | E-GEOD-29719 | biostudies-arrayexpress
Project description:BackgroundSugarcane (Saccharum spontaneum L.), the major sugar and biofuel feedstock crop, is cultivated mainly by vegetative propagation worldwide due to the infertility of female reproductive organs resulting in the reduction of quality and output of sugar. Deciphering the gene expression profile during ovule development will improve our understanding of the complications underlying sexual reproduction in sugarcane. Optimal reference genes are essential for elucidating the expression pattern of a given gene by quantitative real-time PCR (qRT-PCR).MethodIn this study, based on transcriptome data obtained from sugarcane ovule, eighteen candidate reference genes were identified, cloned, and their expression levels were evaluated across five developmental stages ovule (AC, MMC, Meiosis, Mitosis, and Mature).ResultsOur results indicated that FAB2 and MOR1 were the most stably expressed genes during sugarcane female gametophyte development. Moreover, two genes, cell cycle-related genes REC8 and CDK, were selected, and their feasibility was validated. This study provides important insights into the female gametophyte development of sugarcane and reports novel reference genes for gene expression research on sugarcane sexual reproduction.
| S-EPMC8532975 | biostudies-literature