GEO DataSets

(Submitter supplied) Aegilops tauschii is the donor of the wheat D subgenome and an important genetic resource for wheat. The assembly of Ae. tauschii acc. AL8/78 reference genome sequence Aet v4.0 was therefore an important milestone for wheat biology and breeding. The combination of the > 4.2 Gb size of the Ae. tauschii genome and > 84% of recently evolved repeated sequences make sequencing this genome challenging. Here, we report further advances in the development of the Ae. more...

Organism:

Aegilops tauschii

Type:

Non-coding RNA profiling by high throughput sequencing

Platform:

GPL26494

6 Samples

Download data: TXT

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

Type:

Expression profiling by high throughput sequencing

5 related Platforms

110 Samples

Download data: XLSX

(Submitter supplied) Polyploidy occurs in some animals and all flowering plants including important crops such as wheat. The consequences of polyploidy on crops remain elusive partly because their progenitors are unknown. Using two resynthesized wheat allotetraploids SSAA and AADD with known diploid progenitors, we analyzed mRNA and small RNA transcriptomes in the endosperm, compared transcriptomes between endosperm and root in AADD, and examined chromatin changes in the allotetraploids. more...

Organism:

Aegilops tauschii; Aegilops longissima; Aegilops longissima x Triticum urartu; Triticum urartu; Triticum urartu x Aegilops tauschii

Type:

Expression profiling by high throughput sequencing; Non-coding RNA profiling by high throughput sequencing

5 related Platforms

45 Samples

Download data: FASTA, FPKM_TRACKING, GTF, TXT

(Submitter supplied) The three subgenomes (B, A and D) of common wheat (2n=6x=42) are largely intact, which makes extraction of the BBAA subgenomes as organismally independent genomes possible. Availability of such novel extracted tetraploid wheat (Extracted-tetra) provides a unique opportunity to study whether and to what extent the BBAA subgenomes of common wheat have been irreversibly modified, as well as its attendant biological consequences, during their evolutionary trajectory as allohexaploidy. more...

Organism:

Triticum turgidum subsp. durum; Triticum dicoccoides; Aegilops tauschii; Triticum aestivum; Triticum turgidum; Triticum carthlicum

Type:

Expression profiling by array

Platform:

GPL3802

33 Samples

Download data: CEL

(Submitter supplied) We profiled genome-wide gene expression changes in newly hybridized triploids (ABD), its genome-duplicated hexaploid (AABBDD), stable synthetic hexaploid (AABBDD) and T. turgidum (AABB) and Ae. tauschii (DD) parental lines of two independent crosses to reconstruct the events of allopolyploidization and genome stabilization.

Organism:

Triticum turgidum subsp. durum; Aegilops tauschii subsp. strangulata; Triticum dicoccon x Aegilops tauschii subsp. strangulata; Triticum aestivum; Triticum turgidum subsp. durum x Aegilops tauschii subsp. strangulata; Triticum turgidum subsp. dicoccum

Type:

Expression profiling by array

Platform:

GPL9805

28 Samples

Download data: TXT

(Submitter supplied) A NimbleGen array containing both gene-based and RJM repeat junction probe sequences derived from Ae. Tauschii was developed and used to map the Chinese Spring nullisomic-tetrasomic lines and deletion bin lines of the D genome chromosomes.

Organism:

Aegilops tauschii; Triticum aestivum

Type:

Genome variation profiling by genome tiling array

Platform:

GPL20725

96 Samples

Download data: PAIR

(Submitter supplied) To distinguish transcripts expressed from each of the three wheat genomes and those from the rye chromatins, genomic probes generated from diploid progenitors of wheat and rye were synthesized

Organism:

Triticum aestivum; Triticum urartu; Aegilops speltoides; Aegilops tauschii; Secale cereale

Type:

Expression profiling by array

Platform:

GPL18847

12 Samples

Download data: PAIR, TXT

(Submitter supplied) Gene expression levels of newly synthetic triploid wheat (ABD), its chromosome-doubled hexaploid (AABBDD), stable synthetic hexaploid (AABBDD), and their parents, Triticum turgidum (accession KU124, AABB) and Aegilops tauschii (accession KU2074, DD) were compared to understand genome-wide change of gene expressions during the course of amphidiploidization and genome stabilization. Stable synthetic hexaploid which were maintained through self-pollinations for 13 generations using the same combinations of the parents for production of synthetic common wheat.

Organism:

Triticum aestivum; Triticum turgidum subsp. dicoccum; Triticum dicoccon x Aegilops tauschii subsp. strangulata; Aegilops tauschii subsp. strangulata

Type:

Expression profiling by array

Platform:

GPL9805

15 Samples

Download data: TXT

(Submitter supplied) Nascent allohexaploid wheat may represent the initial genetic state for the evolution and domestication of common wheat, which arose by combining the AB genomes of tetraploid Triticum turgidum with the D genome from Aegilops tauschii and out-competed its parents in growth vigor and adaptability. To better understand the molecular basis for this success, we performed mRNA and small RNA expression analyses in three tissues of nascent allohexaploid wheat and its following generations, their progenitors, and Chinese Spring, with the assistance of newly released A and D genome sequences. more...

Organism:

Triticum aestivum; Triticum turgidum; Aegilops tauschii

Type:

Expression profiling by high throughput sequencing; Non-coding RNA profiling by high throughput sequencing

Platforms:

GPL17701 GPL18539 GPL18540

50 Samples

Download data: TXT

(Submitter supplied) Alteration in gene expression accompanying initial stages of allopolyploidy is a prominent feature in plants, but its spectrum and model are highly idiosyncratic. We used multi-colour GISH to identify individuals from two nascent allohexaploid wheat lines between Triticum turgidum and Aegilops tauschii, which had a transgenerationally stable chromosomal constitution mimicking that of common wheat. We performed genomewide analysis of gene expression for these plants along with their parental species using the Affymetrix GeneChip Wheat Genome-Array. more...

Organism:

Triticum aestivum; Aegilops tauschii; Triticum turgidum subsp. durum; Triticum carthlicum

Type:

Expression profiling by array

Platform:

GPL3802

18 Samples

Download data: CEL

(Submitter supplied) Speciation via interspecific or intergeneric hybridization and polyploidization triggers genomic responses

Organism:

Triticum aestivum; Aegilops tauschii; Triticum turgidum subsp. durum

Type:

Non-coding RNA profiling by high throughput sequencing

Platforms:

GPL10467 GPL13525 GPL15035

4 Samples

Download data: TXT

(Submitter supplied) affy_hexaploid_wheat - hexa - Changes upon polyploidization in hexaploid wheat - transcriptomic changes in synthetic hexaploid derived from a cross between tetraploid and natural diploid. Study aims to understand regulation of gene expression in synthetic and natural wheat allohexaploids (Triticum aestivum), that combines the AB genome of T. turgidum and the D genome of Aegilops tauschii; and which we have recently characterized as genetically stable. more...

Organism:

Triticum aestivum; Aegilops tauschii; Aegilops tauschii x Triticum turgidum; Triticum turgidum subsp. durum

Type:

Expression profiling by array

Platform:

GPL3802

18 Samples

Download data: CEL