Population transcriptomics in Daphnia: The role of thermal selection.

摘要: The complex interplay of forces influencing genetic divergence among populations complicates the discovery basis underlying local adaptation. Here, we utilized for first time a combined reverse ecology and population transcriptomic approach to assess contribution thermal selection differentiation, thereby considering transcriptome-wide variation in both gene expression profiles DNA sequences. We compared transcriptomes four Daphnia galeata identified transcripts potentially responding based on an extensive literature search candidate genes possibly under arthropods. Over-representation temperature-relevant strongly contributing sequence two indicates that acted coding level. large number transcripts, which may contribute adaptation outlier tests distinctive profiles. However, these, were not over-represented global set, suggesting played minor role populations. Interestingly, although majority did at level vice versa, affected functions largely consistent between data sets. This suggests regulatory constitutes alternative routes responses natural selection. Our utilization transcriptomics literature-based identification ecologically informative represents useful powerful methodology with wide range applications evolutionary biology.