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E-GEOD-95678

ABSTRACT: Gene expression in B73 maize aleurone and starchy endosperm at 18 and 22 day after pollination

PROVIDER: E-GEOD-95678 | ExpressionAtlas | 2023-06-15

REPOSITORIES: ExpressionAtlas

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			Action	DRS
	E-GEOD-95678-analysis-methods.tsv	Tabular
	E-GEOD-95678-apply_fixes_zooma_mappings.done	Other
	E-GEOD-95678-atlasExperimentSummary.Rdata	Rdata
	E-GEOD-95678-coexpressions.tsv.gz	Tabular
	E-GEOD-95678-configuration.xml	Xml

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The naked endosperm genes encode duplicate ID domain transcription factors required for maize endosperm differentiation

Project description:The objective of the current study is to unravel the gene regulatory networks controlled by the nkd genes during maize endosperm developent. We compared wild type (B73) vs. nkd mutant (introgressed into B73 background) transcriptomes in aleurone vs. starchy endosperm cell types captured by laser capture microdissection technology.

2015-01-28 | GSE61057 | GEO

The naked endosperm genes encode duplicate ID domain transcription factors required for maize endosperm differentiation

Project description:The objective of the current study is to unravel the gene regulatory networks controlled by the nkd genes during maize endosperm development. We compared wild type (B73) vs. nkd mutant (introgressed into B73 background) transcriptomes in aleurone vs. starchy endosperm cell types captured by laser capture microdissection technology. We performed RNA seq analysis of mid-mature (15DAP) endosperm in two cell types [aleurone (A) and starchy endosperm (S)] of wild type B73 (B) and nkd mutant (N) kernels with three independent biological replicates.

2015-01-28 | E-GEOD-61057 | biostudies-arrayexpress

Zea mays

Project description:Gene expression in B73 maize aleurone and starchy endosperm at 18 and 22 day after pollination

| PRJNA377908 | ENA

Gene expression in B73 maize aleurone and starchy endosperm at 18 and 22 day after pollination

Project description:The cereal endosperm consists of starchy endosperm (ST) cells, which accumulate storage proteins and starch, the peripheral aleurone (AL) cells, which mobilize these storage compounds during germination, and transfer cells in contact with the maternal vascular tissues, and the embryo-surrounding region. We conducted RNA-sequencing and analyzed transcript profiles of AL and ST tissues at 18 and 22 days after pollination (DAP), when storage compounds such as proteins, starch, triacylglycerols, specialized metabolites, and minerals are actively synthesized in the maize endosperm. We combined published RNA-seq datasets from other kernel tissues at different developmental stages to analyze gene expression connected to synthesis and accumulation of storage compounds and metabolites. Using weighted correlation network analysis (WGCNA), we identified gene modules associated with metabolic pathways related to nutritional properties of the maize endosperm. We also provide information of novel marker genes specifically expressed in AL and ST, at either early or late developmental stages. This study is important for understanding maize endosperm development and for developing strategies to improve nutritional quality of maize kernels.

2017-05-02 | GSE95678 | GEO

Developing rice endosperm at seven days after flowering: Aleurone layers vs central starchy endosperm

Project description:Transcriptional profiling of developing rice endosperm at seven days after flowering comparing aleurone layers with central starchy endosperm. Cereal productivity is dependent on the accumulation of storage compounds in the endosperm, a nutritive tissue that is composed of aleurone cells in the outermost regions and starchy endosperm in the inner region. The transcriptional analyses provides clues to the molecular basis for different metabolic pathways in response to the spatial and nutritional differences between rice aleurone cells and starchy endosperm.

2012-11-27 | GSE42489 | GEO

Developing rice endosperm at seven days after flowering: Aleurone layers vs central starchy endosperm

2012-11-27 | E-GEOD-42489 | biostudies-arrayexpress

E-GEOD-61057

Project description:Transcription profiling by high throughput sequencing of aleurone and starchy endosperm cells were isolated by laser-capture microdissection in maize nkd mutants

2019-05-14 | E-GEOD-61057 | ExpressionAtlas

RNA-Seq Analysis of Laser-Capture Microdissected Cells of the Developing Central Starchy Endosperm of Maize

Project description:Endosperm is a product of double fertilization, and provides nutrients and signals to the embryo during seed development in flowering plants. Early stages of endosperm development are critical for the development of its storage capacity through synthesis and accumulation of starch and storage proteins. Here we report on the isolation and sequencing of mRNAs from the central portion of the starchy endosperm of Zea mays (maize) B73 at 6 days after pollination. We detected high correlation among the four biological replicates of RNAs isolated using laser-capture microdissection of the cell type. Because the assayed stage of development precedes the synthesis and accumulation of the major storage proteins and starch in the endosperm, our dataset likely include mRNAs for genes that are involved in control and establishment of these developmental programs.

2014-06-17 | GSE58504 | GEO

RNA-Seq Analysis of Laser-Capture Microdissected Cells of the Developing Central Starchy Endosperm of Maize

2014-06-17 | E-GEOD-58504 | biostudies-arrayexpress

RNA sequencing of laser-capture microdissected compartments of the maize kernel identifies regulatory modules associated with endosperm cell differentiation

Project description:Endosperm is an absorptive structure that supports embryo development or seedling germination in angiosperms. The endosperm of cereals is a main source of food, feed, and industrial raw materials worldwide. However, the gene regulatory networks that control endosperm cell differentiation remain largely unclear. As a first step toward characterizing these networks, we profiled the mRNAs in five major cell types of the differentiating endosperm and in the embryo and four maternal compartments of the kernel. Comparisons of these mRNA populations revealed the diverged gene expression programs between filial and maternal compartments, and an unexpected close correlation between embryo and the aleurone layer of endosperm. Gene co-expression network analysis identified co-expression modules associated with single or multiple kernel compartments including modules for the endosperm cell types, some of which showed enrichment of previously identified temporally activated and/or imprinted genes. Detailed analyses of a co-expression module highly correlated with the basal endosperm transfer layer (BETL) identified a regulatory module activated by MRP-1, a regulator of BETL differentiation and function. These results provide a high-resolution atlas of gene activity in the compartments of the maize kernel and help to uncover the regulatory modules associated with the differentiation of the major endosperm cell types. RNAs from ten compartments of the maize kernel including the central starchy endosperm (CSE), conducting zone (CZ), aleurone (AL), basal endosperm transfer layer (BETL), embryo-surrounding region (ESR), nucellus (NU), pericarp (PE), placenta-chalazal region (PC), the vascular region of the pedicel (PED), and the embryo (EMB) were isolated at 8 days after pollination (DAP) using laser-capture microdissection and sequenced using an Illumina HiSeq 2000 platform.

2015-02-13 | E-GEOD-62778 | biostudies-arrayexpress

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