GEO DataSets

(Submitter supplied) The genetic mechanisms underlying hybridization are poorly understood despite their potentially important roles in speciation processes, adaptative evolution, and agronomical innovation. In this study, transcription profiles were compared among three populations of brook charr and their hybrids using microarrays to assess the influence of hybrid origin on modes of transcription regulation inheritance and on the mechanisms underlying growth. more...

Organism:

Salmo salar; Salvelinus fontinalis; Coregonus clupeaformis; Osmerus mordax; Oncorhynchus mykiss; Oncorhynchus tshawytscha

Type:

Expression profiling by array

Platform:

GPL2716

96 Samples

Download data: TXT

(Submitter supplied) Parental effects represent an important source of variation in offspring phenotypes. Depending on the specific mechanisms involved, parental effects may be caused to different degrees by either the maternal or paternal parent, and these effects may in turn act at different stages of development. In order to detect parental effects acting on gene transcription regulation and length phenotype during ontogeny, the transcriptomic profiles of two reciprocal hybrids from Laval × Rupert and Laval × domestic populations of brook charr were compared at hatching, yolk sac resorption, and 15 weeks after exogenous feeding. more...

Organism:

Osmerus mordax; Salvelinus fontinalis; Coregonus clupeaformis; Oncorhynchus mykiss; Salmo salar; Oncorhynchus tshawytscha

Type:

Expression profiling by array

Platform:

GPL2716

96 Samples

Download data: TXT

(Submitter supplied) Domestication has been practiced for centuries yet directed towards relatively few terrestrial crops and animals. While phenotypic and quantitative genetic changes associated with domestication have been amply documented, little is known about the molecular changes underlying the phenotypic evolution during the process. Here, we have investigated the brook charr (Salvelinus fontinalis) responses to artificial selection by means of transcriptional analysis of ~ 32 000 cDNA features performed in both a selected and control populations reared under identical environmental conditions during four generations. more...

Organism:

Salmo salar; Salvelinus fontinalis

Type:

Expression profiling by array

Platform:

GPL10096

40 Samples

Download data: TXT

(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) We investigated whether two sympatric Arctic charr morphs (Salvelinus alpinus) with contrasting feeding ecology, the small-benthic (SB) and the planktivorous (PL) charr of Thingvallavatn in Iceland, exhibit genetically based differences in gene expression variability, and how dominance would affect their hybrids. Through a common-garden experiment, we identified genes clusters with similar expression variability, most differing among the two morphs. more...

Organism:

Salvelinus alpinus

Type:

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

Platforms:

GPL31234 GPL31235

144 Samples

Download data: TXT