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Series GSE93836 Query DataSets for GSE93836
Status Public on Aug 18, 2017
Title Role of epigenetics in adaptive evolution of an asexual snail (Lake Lytle)
Organism Potamopyrgus antipodarum
Experiment type Methylation profiling by high throughput sequencing
Summary We examined adaptive morphological divergence and epigenetic variation in genetically impoverished asexual populations of a freshwater snail, Potamopyrgus antipodarum from distinct environments. These populations exhibit environment-specific adaptive divergence in shell shape and significant genome wide DNA methylation differences among differentially adapted lake and fast water flow river populations. The epigenetic variation correlated with adaptive phenotypic variation in rapidly adapting asexual animal populations. This provides one of the first examples of environmentally-driven differences in epigenetics that associates with adaptive phenotypic divergence.
Overall design To examine the association between this adaptive divergence and epigenetic differences, we sampled at least 30 individuals from a “river” site characterized by constantly fast water current speeds due to input from underground springs (Ritter Island, Snake River, ID) and from a “lake” site with no water current (Lake Lytle, Rockaway Beach, OR). Shell spire height and aperture length were measured as an index of adaptive foot size and shell shape differences. On these same samples, we dissected foot tissue from individuals for the analysis of epigenetic variation.
Contributor(s) Thorson JM, Smithson M, Beck D, Sadler-Riggleman I, Nilsson E, Dybdahl M, Skinner MK
Citation(s) 29074962, 31723440
Submission date Jan 19, 2017
Last update date Nov 19, 2019
Contact name Michael K Skinner
Organization name WSU
Department SBS
Street address Abelson 507
City Pullman
State/province WA
ZIP/Postal code 99163
Country USA
Platforms (1)
GPL22947 Illumina HiSeq 2500 (Potamopyrgus antipodarum)
Samples (6)
GSM2463661 S1_Lytle
GSM2463662 S2_Lytle
GSM2463663 S3_Lytle
This SubSeries is part of SuperSeries:
GSE99912 Role of epigenetics in adaptive evolution of an asexual snail
BioProject PRJNA362574
SRA SRP097140

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Supplementary file Size Download File type/resource
GSE93836_results.csv.gz 16.1 Mb (ftp)(http) CSV
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