GEO DataSets

(Submitter supplied) Four tissues (leaves, 1 mm anthers, 1.5 mm anthers, pollen) from one hybrid and one inbred maize line were hybridized with the W23 inbred on Agilent oligonucleotide microarrays with 21K elements. Tissue-specific gene expression patterns were documented with leaves having the most tissue-specific transcripts. Haploid pollen expresses about half as many genes as the other samples. High overlap of gene expression was found between leaves and anthers. more...

Organism:

Zea mays

Type:

Expression profiling by array

Platform:

GPL3099

24 Samples

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(Submitter supplied) Global gene expression profiles of seven stages representing 29 days of anther development are analyzed using a 44K oligonucleotide array querying ~80% of maize protein-coding genes. Each anther stage expresses ~10,000 constitutive and ~10,000 or more transcripts restricted to one or a few stages. Keywords: anther development, maize

Organism:

Zea mays

Type:

Expression profiling by array

Platform:

GPL7209

28 Samples

Download data: TXT

(Submitter supplied) Agilent oligonucleotide arrays were used to profile gene expression in dissected maize anthers of 3 types of male-sterile plants and their fertile siblings at four stages of development: after anther initiation, at the rapid mitotic proliferation stage, pre-meiosis, and meiotic prophase I. The male-sterile mutants (ms23, msca, and mac1) lack a range of normal cell types resulting from a temporal progression of anther failure. more...

Organism:

Zea mays

Type:

Expression profiling by array

Platform:

GPL7297

72 Samples

Download data: TXT

(Submitter supplied) This study compared the transcriptomes of maize anthers at both 1mm and 1.5mm lengths from male sterile mutants with either the am1-489 or am1-pra alleles as well as from fertile siblings of the mutant plants. Comparisons were done varying just the stage (1mm vs 1.5 mm), just the allele (am1-pra vs am1-489 at the same stage), and wild-type vs mutant (same stage and allele). Genes were categorized as On (expressed) or Off (not detected) and if both channels produced an intensity, the differential expression was determined. more...

Organism:

Zea mays

Type:

Expression profiling by array

Platform:

GPL7444

64 Samples

Download data: TXT

(Submitter supplied) The present study profiled and analyzed gene expression of the maize ear at four key developmental stages. Based on genome-wide profile analysis, we detected differential mRNA of maize genes. Some of the differentially expressed genes (DEGs) were predicted to be potential candidates of maize ear development. Several well-known genes were found with reported mutants analyses, such as, compact plant2 (ct2), zea AGAMOUS homolog1 (zag1), bearded ear (bde), and silky1 (si1). more...

Organism:

Zea mays

Type:

Expression profiling by high throughput sequencing

Platform:

GPL9141

4 Samples

Download data: TXT

(Submitter supplied) Microarray hybridization was used to assess UV-B responses in both directly exposed and shielded tissues of a maize line deficient in anthocyanin accumulation. Among 347 transcripts found to be regulated after 8 h of high UV-B irradiation, 285 were increased significantly in at least one organ but only 80 were down-regulated by UV-B. Although some genes were regulated by UV-B in more than one sample, most UV-B regulated genes were organ-specific. more...

Organism:

Zea mays

Type:

Expression profiling by array

Platforms:

GPL498 GPL499

22 Samples

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(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 GPL2557 GPL2572

54 Samples

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(Submitter supplied) The Affymetrix GeneChip Wheat Genome Array currently provides the most comprehensive coverage of the wheat genome for a microarray. In addition to using this resource for transcript expression studies and hybridization-based DNA marker discovery, we endeavored to use the GeneChip to discover the expression of natural antisense transcript (NAT) pairs. By using alternative target preparation schemes, both the sense- and antisense-strand derived transcripts were labeled and hybridized to the Wheat GeneChip. more...

Organism:

Triticum aestivum

Type:

Expression profiling by array

Platform:

GPL3802

2 Samples

Download data: CEL

(Submitter supplied) Vegetative phase change is the developmental transition from the juvenile phase to the adult phase during which a plant becomes competent for sexual reproduction. Gain of ability to flower is often accompanied by changes in patterns of differentiation in newly forming vegetative organs. In maize, juvenile leaves differ from adult leaves in morphology, anatomy, and cell wall composition. Whereas the normal sequence of juvenile followed by adult is repeated with every sexual generation, this sequence can be altered in maize by the isolation and culture of the shoot apex from an adult phase plant; an “adult” meristem so treated reverts to forming juvenile vegetative organs. more...

Organism:

Zea mays

Type:

Expression profiling by array

Platform:

GPL6053

36 Samples

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(Submitter supplied) Transcriptomes from multiple pre-meiotic stages of wild type, mac1, and msca1 maize anthers were characterized by microarray hybridization. The goal was to characterize the developmental progression as the anther specifies five cell types and grows rapidly precedeing meiotic entry. The stages characterized were immature anther primordia (0.15 mm long in maize) containing just stem cells, through somatic and germinal cell fate specification (0.20 and 0.25 mm), mitotic proliferation (0.4 mm), and finally the birth of the middle layer and tapetum (0.7 mm). more...

Organism:

Zea mays

Type:

Expression profiling by array

Platform:

GPL7444

48 Samples

Download data: TXT

(Submitter supplied) MuDR/Mu are a highly active transposon family moving by either cut only (or cut-and-paste) in strictly somatic tissues or net replicative transposition (absence of excision alleles) in reproductive tissues. Aside from the MuDR-encoded MURA and MURB proteins, other factors required for Mu transposition, particularly those contributing to the developmentally specific behavior, have yet to be identified. more...

Organism:

Zea mays

Type:

Expression profiling by array

Platform:

GPL7444

3 Samples

Download data: TXT

(Submitter supplied) Comparison of sense (forward probes) and antisense (reverse probes on U74 v1 gene arrays) transcripts in mouse kidney and brain. Positive calls related to antisense transcripts were compared to the cognate signals on the 430 version of mouse genome arrays to obtain genes that co expressed sense and antisense transcripts. This had to be done manually because divergent probe IDs on the two chip generations. more...

Organism:

Mus musculus

Type:

Expression profiling by array

5 related Platforms

7 Samples

Download data: CEL

(Submitter supplied) Despite their importance, there remains a paucity of large scale expression-based studies of reproductive development in the species belonging to the Triticeae. As a first step to address this deficiency, a gene expression atlas of triticale reproductive development was generated using the 55K Affymetrix GeneChip® Wheat Genome Array. The global transcriptional profiles of the anther/pollen, ovary and stigma were analyzed at concurrent developmental stages and co-regulated as well as preferentially expressed genes were identified. more...

Organism:

Triticum aestivum; Secale cereale x Triticum turgidum subsp. durum

Type:

Expression profiling by array

Platform:

GPL3802

39 Samples

Download data: CEL

(Submitter supplied) The comparison of the cell-specific transcriptomes of bundle sheath (BS) and mesophyll (M) cells from successive developmental stages of maize leafs reveals that the number of genes preferentially transcribed in one cell type or the other varies considerably from the sink-source transition to mature photosynthetic stages. The number of differentially expressed (DE) genes is maximal at a stage well prior to full maturity, including those that encode key functions for C4 photosynthesis. more...

Organism:

Zea mays

Type:

Expression profiling by high throughput sequencing

Platform:

GPL9361

12 Samples

Download data: TXT

(Submitter supplied) Six different Solanaceae species, Potato (Solanum tubersosum), Tomato (Lycopersicum esculentum), Pepper (Capsicum annuum), Tobacco (Nicotiana tabaccum), Petunia and Nicotiana benthiamana were grown at 25C, 16h light and 8h darkness. Mature leaves were harvested after 4-6 weeks. RNA was isolated using Qiagen RNeasy. Tomato, pepper, petunia, tobacco and N. benthamiana samples were hybridized against potato samples. more...

Organism:

Capsicum annuum; Nicotiana benthamiana; Petunia x hybrida; Solanum tuberosum; Solanum lycopersicum; Nicotiana tabacum

Type:

Expression profiling by array

Dataset:

GDS2302

Platform:

GPL1901

10 Samples

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Comparison of leaves of Potato to those of 5 other members of the Solanaceae family. The Solanaceae is a family of closely related species with diverse phenotypes that is exploited for agronomic purposes. Results provide insight into the phylogenetic similarity among the six Solanaceae species.

Organism:

Capsicum annuum; Solanum lycopersicum; Nicotiana tabacum; Nicotiana benthamiana; Petunia x hybrida; Solanum tuberosum

Type:

Expression profiling by array, log2 ratio, 5 species sets

Platform:

GPL1901

Series:

GSE3380

10 Samples

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(Submitter supplied) Single pollen precursors were isolated from maize anthers, covering 3 weeks of development from before meiosis through mature pollen. Starting material was staged by anther length and microscopy, and anther stages were densely sampled throughout pollen development. All samples were from an F1 hybrid between A188 and B73 inbred lines, and transcripts were associated with a specific parental allele when possible. more...

Organism:

Zea mays

Type:

Expression profiling by high throughput sequencing

Platforms:

GPL25410 GPL24163

638 Samples

Download data: CSV

(Submitter supplied) MicroRNAs (miRNAs) are a class of small, non-coding regulatory RNAs that regulate gene expression by guiding target mRNA cleavage or translational inhibition in plants and animals. At present there is relatively little information regarding the role of miRNAs in the response to drought stress in maize. In this study, two small RNA libraries were sequenced, and a total of 11,973,711 and 14,326,010 raw sequences were generated from growing leaves of drought-tolerant and drought-sensitive maize seedlings, respectively. more...

Organism:

Zea mays

Type:

Non-coding RNA profiling by high throughput sequencing

Platform:

GPL15463

2 Samples

Download data: TXT

(Submitter supplied) Eighteen samples (three replicates) of the maize hybrid An’nong 591 and its parental lines under control and heat treatment were used for RNA sequencing

Organism:

Zea mays

Type:

Expression profiling by high throughput sequencing

Platform:

GPL25842

18 Samples

Download data: TXT

(Submitter supplied) The first genome-wide transcriptomic atlas of grapevine (Vitis vinifera) is based on 54 diverse samples expressing ~93% of predicted grapevine genes. Pollen and senescent leaves have unique transcriptomes but microarray analysis grouped all other samples into vegetative/green or mature/woody categories based on maturity rather than organ identity. This fundamental transcriptome reprograming during maturation was highlighted by three distinct statistical approaches supported by gene coexpression analysis. more...

Organism:

Vitis vinifera

Type:

Expression profiling by array

Platform:

GPL13936

162 Samples

Download data: PAIR