GEO DataSets

(Submitter supplied) To investigate genome-wide maternal and paternal contributions to polyploid grain development, we produced and analyzed transcriptomes from zygote to mature stage embryos as well as two endosperm stages derived from reciprocal crosses between tetraploid and hexaploid wheats.

Organism:

Triticum aestivum; Triticum turgidum

Type:

Expression profiling by high throughput sequencing

Platforms:

GPL18862 GPL26493

144 Samples

Download data: XLSX

(Submitter supplied) we present an atlas of global gene expression as well as the evolutionary divergence covering embryo, endosperm and seed coat development in wheats and their diploid ancestors, providing insights into the evolution of gene expression in embryogenesis and grain development of wheat species.

Organism:

Triticum aestivum; Triticum turgidum; Aegilops speltoides; Aegilops tauschii; Triticum monococcum

Type:

Expression profiling by high throughput sequencing

5 related Platforms

110 Samples

Download data: XLSX

(Submitter supplied) Interspecific hybrids in Arabidopsis result in seed abortion that causes reproductive barrier. To investigate the allelic expression pattern at transcriptome level during early seed abortion stage, we performed RNA-seq analysis in F1 interspecific hybrids with three different ecotypes in A. thaliana as maternal and A. arenosa as paternal and identified MEGs and PEGs. Interestingly, PEGs showed distinct expression pattern in several aspects, compared to MEGs: PEGs showed ecotype-specific expression pattern, suggesting a role for PEGs in ecotype-dependent seed lethality. more...

Organism:

Arabidopsis thaliana x Arabidopsis arenosa

Type:

Expression profiling by high throughput sequencing

Platform:

GPL16156

4 Samples

Download data: TXT

(Submitter supplied) We present an atlas of global gene expression covering embryo, endosperm and seed coat development in Chinese Spring and CDC commander, providing insights into the evolution of gene expression in embryogenesis and grain development of hexaploid and tetraploid wheat species.

Organism:

Triticum aestivum; Triticum turgidum

Type:

Expression profiling by high throughput sequencing

Platforms:

GPL17701 GPL18539

40 Samples

Download data: XLSX

(Submitter supplied) In animals, maternal gene products deposited into eggs regulate embryonic development before activation of the zygotic genome. In plants, an analogous period of prolonged maternal control over embryogenesis is thought to occur based on gene-expression studies. However, other gene-expression studies and genetic analyses show that some transcripts must derive from the early zygotic genome, implying that the prevailing model does not fully explain the nature of zygotic genome activation in plants. more...

Organism:

Arabidopsis thaliana

Type:

Expression profiling by high throughput sequencing

Platform:

GPL9302

6 Samples

Download data: TXT

(Submitter supplied) Seed size is important to crop domestication and natural selection and is affected by the balance of maternal and paternal genomes in endosperm. Endosperm, like placenta in mammals, provides reserves to the developing embryo. Interploidy crosses disrupt the genome balance in endosperm and alter seed size. Specifically, paternal-excess crosses (2 × 4) delay endosperm cellularization (EC) and produce larger seeds, whereas maternal-excess crosses (4 × 2) promote precocious EC and produce smaller seeds. more...

Organism:

Arabidopsis thaliana

Type:

Non-coding RNA profiling by high throughput sequencing

Platform:

GPL9302

8 Samples

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(Submitter supplied) To analyse the regulation of transcripts in grain embryo and endosperm during development, we performed RNA-Seq for wheat from 14 and 25 day post anthesis (DPA). And long-read sequencing for mixed whole grains from 14 and 25 DPA was employed to obtain full-length transcripts. A series of differentially expressed genes and tissues-specific genes of embryo and endosperm were identified. Moreover, 4351, 4641, 4516 and 4453 genes with A, B and D homoeoloci were detected in the four tissues. more...

Organism:

Triticum aestivum

Type:

Expression profiling by high throughput sequencing

Platform:

GPL23509

12 Samples

Download data: TXT, XLSX

(Submitter supplied) In angiosperms, the endosperm provides nutrients for embryogenesis or seed germination and is the primary tissue where gene imprinting occurs. To map the imprintome of the early developing endosperm in maize, we performed high-throughput transcriptome sequencing of the kernels at 0, 3, 5 days after pollination (DAP) and the endosperms at 7, 10, and 15 DAP produced from the B73 and Mo17 reciprocal crosses. more...

Organism:

Zea mays

Type:

Expression profiling by high throughput sequencing

Platform:

GPL15463

12 Samples

Download data: TXT