Scatter plot comparing gene expression between penguins before (NI) and after sea acclimation (SA). Each point represents the mean expression level of a gene in NI and SA conditions. Black dots represent differentially expressed genes between both situations. Red symbols represent the differentially expressed genes tested by qPCR: red stars correspond to the validated genes and red crosses to non-validated ones.
Degletagne et al. BMC Genomics 2010 11:344 doi:10.1186/1471-2164-11-344