Transcriptomics

Dataset Information

5

Only skin deep: shared genetic response to the deadly chytrid fungus in susceptible frog species


ABSTRACT: Amphibian populations around the world are threatened by an emerging infectious pathogen, the chytrid fungus Batrachochytrium dendrobatidis (Bd). How can a fungal skin infection kill such a broad range of amphibian hosts? And why are certain species particularly susceptible to the impacts of Bd? Here we use a genomics approach to understand the genetic response of multiple susceptible frog species to Bd infection. We characterize the transcriptomes of two closely-related endangered frog species (Rana muscosa and Rana sierrae) and analyze whole genome expression profiles from frogs in controlled Bd-infection experiments. We integrate the Rana results with a comparable dataset from a more distantly-related susceptible species (Silurana tropicalis). We demonstrate that Bd-infected frogs show massive disruption of skin function and show no evidence of a robust immune response. The genetic response to infection is shared across the focal susceptible species, suggesting a common effect of Bd on susceptible frogs. A total of five (12-plex) chips were analyzed from 60 samples comprising 2 conditions (control and infected), 3 tissues (skin, liver and spleen) and 2 timepoints (early and late). Three biological replicates were used for each condition and tissue at each time point. Twentyfour arrays were analyzed for skin samples, 24 for liver, and 12 for spleen. The same dye, Cy5, was used for all samples.

ORGANISM(S): Rana Sierrae Rana Muscosa

TISSUE(S): Spleen, Liver, Skin

SUBMITTER: E B Rosenblum   Thomas Poorten  G K Murdoch  M Settles  T J Poorten 

PROVIDER: E-GEOD-34235 | ArrayExpress | 2012-04-30

SECONDARY ACCESSION(S): GSE34235PRJNA149799

REPOSITORIES: GEO, ArrayExpress

Dataset's files

Source:
Action DRS
E-GEOD-34235.README.txt Txt
E-GEOD-34235.idf.txt Idf
E-GEOD-34235.processed.1.zip Processed
E-GEOD-34235.raw.1.zip Raw
E-GEOD-34235.sdrf.txt Txt
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