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Zea mays

ABSTRACT: Zygotic Genome Activation Occurs Shortly After Fertilization in Maize

PROVIDER: PRJNA384958 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR5488450_1.fastq.gz	Fastqsanger.gz
	SRR5488450_2.fastq.gz	Fastqsanger.gz
	SRR5488460_1.fastq.gz	Fastqsanger.gz
	SRR5488460_2.fastq.gz	Fastqsanger.gz
	SRR5488451_1.fastq.gz	Fastqsanger.gz

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E-GEOD-98379

Project description:Zygotic Genome Activation Occurs Shortly After Fertilization in Zea mays

2020-04-06 | E-GEOD-98379 | ExpressionAtlas

Zea mays Transcriptome or Gene expression

Project description:Maize is one of the most important crops in the world and serves as an excellent model for seed development research. Despite the important role of the transcriptome in development, genome-wide expression throughout the process of maize seed development has not been characterized. Using RNA-seq, we developed a spatio-temporal transcriptome atlas of B73 maize seed development from fertilization to maturity for embryo, endosperm, and whole seed tissue.

2015-02-12 | E-MTAB-4432 | biostudies-arrayexpress

Zea mays Transcriptome or Gene expression

Project description:Maize (Zea mays) is an excellent cereal model for research on seed development because of its relatively large size for both embryo and endosperm. Despite the importance of seed in agriculture, the genome-wide transcriptome pattern throughout seed development has not been well characterized. Using high-throughput RNA sequencing, we developed a spatiotemporal transcriptome atlas of B73 maize seed development based on 53 samples from fertilization to maturity for embryo, endosperm, and whole seed tissues.

2014-08-09 | E-MTAB-4395 | biostudies-arrayexpress

Zea mays Epigenomics

Project description:RNA-directed DNA methylation (RdDM) in plants is a well-characterized example of RNA interference-related transcriptional gene silencing. To determine the relationships between RdDM and heterochromatin in the repeat-rich maize (Zea mays) genome, we performed whole-genome analyses of several heterochromatic features: dimethylation of lysine 9 and lysine 27 (H3K9me2 and H3K27me2), chromatin accessibility, DNA methylation, and small RNAs; we also analyzed two mutants that affect these processes, mediator of paramutation1 and zea methyltransferase2.

2014-12-05 | E-MTAB-4191 | biostudies-arrayexpress

Heterosis-associated gene expression in maize (Zea mays L.) embryo and endosperm 6 days after pollination

Project description:We demonstrated the manifestation of heterosis in hybrid maize embryo and endosperm tissue six days after fertilization in crosses of several inbred lines. Here we analyzed heterosis-associated gene expression pattern in these tissues of reciprocal crosses of two european maize inbred line combinations. Differences in gene expression were analyzed with custom microarrays by a combined approach of suppression subtractive hybridization and microarray hybridizations

2009-08-28 | GSE17821 | GEO

Nascent transcription defined by RNA polymerase IV in Zea mays

Project description:Maize RNA Polymerase D1 (RPD1), the largest subunit of RNA polymerase IV (Pol IV), is required for normal plant development, repression of transposable elements (TEs), and for the regulation of specific alleles associated with TEs. Here, we define the nascent transcriptomes of rpd1 mutant and wild-type (WT) seedlings using global run-on sequencing (GRO-seq) to identify the broader targets of RPD1-based transcriptional regulation. Surprisingly, although TE-like sequences comprise >85% of the maize genome, most TEs are not transcribed at the seedling stage, even in rpd1 mutants. Profile comparisons identify the global set of genes and TEs whose transcription is altered in the absence of RPD1, in some cases in antisense orientation. These results indicate that maize Pol IV specifies Pol II-based transcriptional regulation for certain regions of the maize genome.

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Zea mays subsp. mays Transcriptome or Gene expression

Project description:Drought represents a major constraint on maize production worldwide. Understanding the genetic basis for natural variation in drought tolerance of maize may facilitate efforts to improve this trait in cultivated germplasm. Here, using a genome-wide association study, we show that a miniature inverted-repeat transposable element (MITE) inserted in the promoter of a NAC gene (ZmNAC111) is significantly associated with natural variation in maize drought tolerance. For maize RNA-seq analysis, pooled tissues from three, eight-day-old maize seedlings were collected from transgenic and wild-type plants, prior to or after 2-hour dehydration, to conduct the RNA-seq analysis.

2015-03-29 | E-MTAB-4246 | biostudies-arrayexpress

Expression data from Zea mays developmental series.

Project description:Through hierarchical clustering of transcript abundance data across a diverse set of tissues and developmental stages in maize, we have identified a number of coexpression modules which describe the transcriptional circuits of maize development.

2013-03-01 | GSE44743 | GEO

Expression analysis of maize (Zea mays L.) genes in continuous light

Project description:Investigation of whole genome gene expression level changes in maize plants (standard maize line B73) in controlled conditions under continuous light. Tissues of the leaf elongation zone were sampled from plants well watered every 12 hours before and after lights on.

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Transcription profiling of Zea mays leaves from variety Helen grown in agricultural fields at 2 levels of nitrogen fertilization

Project description:Comparison of the transcriptome profiles of a widely commercialized maize variety (Helen) at two levels of nitrogen fertilization. Conventional nitrogen fertilization compared to not nitrogen fertilization during the season.

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