GEO DataSets

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Zea mays

Type:

Expression profiling by array

Platform:

GPL4032

36 Samples

Download data: CEL, CHP

(Submitter supplied) Microarray analysis of gene expression patterns in immature ear, seedling, and embryo tissues from the maize inbred lines B73 and Mo17 identified numerous genes with variable expression. Some genes had detectable expression in only one of the two inbreds; most of these genes were detected in the genomic DNA of both inbreds, indicating that the expression differences are likely caused by differential regulation rather than by differences in gene content. more...

Organism:

Zea mays

Type:

Expression profiling by array

Platform:

GPL4032

12 Samples

Download data: CEL, CHP

(Submitter supplied) Microarray analysis of gene expression patterns in immature ear, seedling, and embryo tissues from the maize inbred lines B73 and Mo17 identified numerous genes with variable expression. Some genes had detectable expression in only one of the two inbreds; most of these genes were detected in the genomic DNA of both inbreds, indicating that the expression differences are likely caused by differential regulation rather than by differences in gene content. more...

Organism:

Zea mays

Type:

Expression profiling by array

Platform:

GPL4032

12 Samples

Download data: CEL, CHP

(Submitter supplied) Microarray analysis of gene expression patterns in immature ear, seedling, and embryo tissues from the maize inbred lines B73 and Mo17 identified numerous genes with variable expression. Some genes had detectable expression in only one of the two inbreds; most of these genes were detected in the genomic DNA of both inbreds, indicating that the expression differences are likely caused by differential regulation rather than by differences in gene content. more...

Organism:

Zea mays

Type:

Expression profiling by array

Platform:

GPL4032

12 Samples

Download data: CEL, CHP

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Zea mays

Type:

Expression profiling by array

Platform:

GPL4032

24 Samples

Download data: CEL, CHP

(Submitter supplied) The nuclear content of the plant endosperm is the result of the contribution two maternal genomes and a single paternal genome. This 2:1 dosage relationship provides a unique system for studying the additivity of gene expression levels in reciprocal hybrids. A combination of microarray profiling and allele-specific expression analysis was performed using RNA isolated from endosperm tissues of maize inbred lines B73 and Mo17 and their reciprocal hybrids at two developmental stages, 13 and 19 days after pollination. more...

Organism:

Zea mays

Type:

Expression profiling by array

Platform:

GPL4032

12 Samples

Download data: CEL, CHP

(Submitter supplied) The nuclear content of the plant endosperm is the result of the contribution two maternal genomes and a single paternal genome. This 2:1 dosage relationship provides a unique system for studying the additivity of gene expression levels in reciprocal hybrids. A combination of microarray profiling and allele-specific expression analysis was performed using RNA isolated from endosperm tissues of maize inbred lines B73 and Mo17 and their reciprocal hybrids at two developmental stages, 13 and 19 days after pollination. more...

Organism:

Zea mays

Type:

Expression profiling by array

Platform:

GPL4032

12 Samples

Download data: CEL, CHP

(Submitter supplied) Heterosis (hybrid vigor) refers to the superior performance of hybrid progeny relative to their parents. Although widely exploited in agriculture, the mechanisms responsible for heterosis are not well understood. As a monoecious organism, a given maize plant can be used as both male and female parents of crosses. Regardless of the cross direction, the maize inbred lines B73 and Mo17 produce hybrids that substantially out-perform their parents. more...

Organism:

Zea mays

Type:

Expression profiling by array; Expression profiling by high throughput sequencing

4 related Platforms

533 Samples

Download data: TXT

(Submitter supplied) The contribution of epigenetic alterations to natural variation for gene transcription levels remains unclear. In this study, we investigated the functional targets of the maize chromomethylase ZMET2 in multiple inbred lines to determine whether epigenetic changes conditioned by this chromomethylase are conserved or variable within the species. Gene expression microarrays were hybridized with RNA samples from the inbred lines B73 and Mo17, and from near-isogenic derivatives containing the loss-of-function allele zmet2-m1. more...

Organism:

Zea mays

Type:

Expression profiling by array

Platform:

GPL4032

18 Samples

Download data: CEL, CHP

(Submitter supplied) Expression profiling analyses for eight maize inbreds reveals extensive transcriptional variation. This is a companion dataset to an Affymetrix profiling experiment (GEO Series GSE10237). Keywords: Genotype comparison series

Organism:

Zea mays

Type:

Expression profiling by array

Platform:

GPL6438

24 Samples

Download data: GPR

(Submitter supplied) Expression profiling analyses for 5 maize inbreds and 4 hybrids, chosen to represent diversity in genotypes and heterosis responses, revealed a correlation between genetic diversity and transcriptional variation. This is a companion dataset to an Affymetrix profiling experiment (GEO Series GSE10236). Keywords: Genotype comparison series

Organism:

Zea mays

Type:

Expression profiling by array

Platform:

GPL6438

27 Samples

Download data: GPR

(Submitter supplied) Expression profiling analyses for eight maize inbreds reveals extensive transcriptional variation. Many genes exhibit presence-absence variation among the inbred lines. Keywords: Genotype comparison series

Organism:

Zea mays

Type:

Expression profiling by array

Platform:

GPL4032

24 Samples

Download data: CEL, CHP

(Submitter supplied) Expression profiling analyses for 5 maize inbreds and 4 hybrids, chosen to represent diversity in genotypes and heterosis responses, revealed a correlation between genetic diversity and transcriptional variation. The majority of differentially expressed genes in each of the different hybrids exhibited additive expression patterns, and ~25% exhibited statistically significant non-additive expression profiles. more...

Organism:

Zea mays

Type:

Expression profiling by array

Platform:

GPL4032

27 Samples

Download data: CEL, CHP

(Submitter supplied) The phenomenon of heterosis describes the increased agronomic performance of heterozygous F1-plants compared to their homozygous parental inbred plants. Heterosis is already manifested during the early stages of root development in maize. The goal of this study was to identify non-additive gene expression in primary roots of maize hybrids compared to the average expression levels of their parental inbred lines. more...

Organism:

Zea mays

Type:

Expression profiling by array

Platform:

GPL1996

168 Samples

Download data: TXT

(Submitter supplied) Heterosis is the phenomenon whereby the progeny of particular inbred lines have enhanced agronomic performance relative to both parents. Although several hypotheses have been proposed to explain this fundamental biological phenomenon, the responsible molecular mechanisms have not been determined. The maize inbred lines B73 and Mo17 produce a heterotic F1 hybrid. Global patterns of gene expression were compared in seedlings of these three genotypes using a microarray that contains 13,999 cDNAs. more...

Organism:

Zea mays

Type:

Expression profiling by array

Platform:

GPL2613

27 Samples

Download data

(Submitter supplied) Genome-wide gene expression atlas of maize inbred line B73. Maize inbred B73 was used for constructing the gene atlas. Plants were grown in Plano silt loam soil at the West Madison Agricultural Research Station, Verona, WI during Summer 2008. During field preparation, 200 kg/acre of Urea (46-0-0) was applied. One day after planting, herbicides including Callisto (142 g/acre), Dual II (710 ml/acre), and Simazine (227 g/acre) were applied. more...

Organism:

Zea mays

Type:

Expression profiling by genome tiling array

Platform:

GPL12620

180 Samples

Download data: PAIR

(Submitter supplied) Epigenetic variation describes heritable differences that are not attributable to changes in DNA sequence. Methylation of cytosine residues provides a mechanism for the inheritance of epigenetic information. We have profiled the distribution of DNA methylation in the large, complex genome of Zea mays (ssp. mays). DNA methylation levels are higher near the centromeres and are generally inversely correlated with recombination and gene expression levels. more...

Organism:

Zea mays

Type:

Methylation profiling by genome tiling array

Platform:

GPL13499

3 Samples

Download data: PAIR, TXT

(Submitter supplied) Seed germination is a critical developmental process in plant propagation. Knowledge of the gene expression patterns in this critical process is important in order to understand the main biochemical reactions involved in successful germination, specially for economically relevant plants such as Maize. The purpose of this study is the gene expression analysis of quiescent and germinated maize embryonic axes to determine the regulatory mechanism for (r)-protein expression during the maize development process.

Organism:

Zea mays

Type:

Expression profiling by array

Platform:

GPL4032

14 Samples

Download data: CEL

(Submitter supplied) All above ground organs of higher plants are ultimately derived from specialized organogenic structures called shoot apical meristems (SAMs). It is comprised of pluripotent stem cells, which divide to regenerate themselves as well as to provide cells to form other organs such as leaves and stems. To study global gene expression in maize SAM and very young primordia (P0 and P1), RNA was extracted from both SAMs (SAMs per se plus P0 and P1) and above-ground portions of seedlings collected from 14-day old B73 seedlings. more...

Organism:

Zea mays

Type:

Expression profiling by array

Platforms:

GPL3538 GPL2572 GPL2557

54 Samples

Download data

(Submitter supplied) The embryo is responsible for transmitting genetic information to the next generation. However, the underlying gene expression and gene imprinting during early embryo development remain largely elusive in maize. Using high-throughput RNA sequencing, we analyzed the allelic gene expression patterns of maize embryos from reciprocal crosses between inbred lines B73 and Mo17 at six time points (3 to 13 days after pollination). more...

Organism:

Zea mays

Type:

Expression profiling by high throughput sequencing

Platform:

GPL17628

48 Samples

Download data: XLS