GEO DataSets

(Submitter supplied) Traditionally, the study of evolution has focused on heritable variation, because selection on non-heritable phenotypic variation was deemed non-important for its inability to cause evolutionary responses such as diversification of lineages. Recently however, it has been suggested that also environmentally induced phenotypic variation such as phenotypic plasticity can play an important role in adaptive responses resulting in diversification. more...

Organism:

Xenopus laevis; Aquarana catesbeiana; Lithobates pipiens; Rana temporaria

Type:

Expression profiling by array

Platform:

GPL16276

48 Samples

Download data: TXT

(Submitter supplied) The impact of pesticides on amphibian metamorphosis may vary depending on developmental stage of individuals during the exposure period. Some anurans experience increased rates of development when exposure to the insecticide carbaryl occurs later in larval development. We exposed developing northern green frog tadpoles (Lithobates clamitans) to a 3 day pulsatile exposure of 1 mg/L carbaryl at 16 weeks relative to the starting free-swimming Gosner stage 25 (Gosner, 1960) and examined treatment effects on brain mRNA abundance profiles of Gosner stage 46 metamorphs using an amphibian cDNA microarray.

Organism:

Aquarana catesbeiana; Lithobates clamitans; Lithobates pipiens; Xenopus laevis

Type:

Expression profiling by array

Platform:

GPL16276

11 Samples

Download data: TXT

(Submitter supplied) Six strains of Saccharomyces cerevisiae were grown in four different environments representing a continuum of rich and poor natural conditions Keywords: Stress response, genetic diversity

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by array

Platform:

GPL2682

91 Samples

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(Submitter supplied) We studied plastic and evolutionary responses in gene expression of Tribolium castaneum after beetles’ exposure to new environments that differed from ancestral control conditions in temperature, humidity or both. Using experimental evolution with ten replicated lines per condition, we were able to demonstrate adaptation (higher offspring number compared to control lines) after 20 generations. We measured whole-transcriptome gene expression with RNA-seq to infer evolutionary and plastic changes. more...

Organism:

Tribolium castaneum

Type:

Expression profiling by high throughput sequencing

Platform:

GPL20193

244 Samples

Download data: TXT

(Submitter supplied) Phenotypic plasticity and local adaptation via genetic change are two major mechanisms of response to dynamic environmental conditions. These mechanisms are not mutually exclusive, since genetic change can establish similar phenotypes to plasticity. This connection between both mechanisms raises the question of how much of the variation observed between species or populations is plastic and how much of it is genetic. more...

Organism:

Salamandra salamandra

Type:

Expression profiling by array

Platform:

GPL23661

72 Samples

Download data: TXT