examination). Our results strongly suggested that the changes in PGD scores of the gill tissue were not associated with the changes in gene expression or histopathology. In contrast, integration of the gill RNA-seq data with the gill histopathology enabled us to identify common gene expression patterns associated with multifactorial gill disease, independently from the origin of samples. We demonstrated that the gene expression patterns associated with multifactorial gill disease were dominated by two processes: a range of immune responses driven by pro-inflammatory cytokines and the events associated with tissue damage and repair, driven by caspases and angiogenin.
Bibliographical noteFunding statement
The study was supported by the Scottish Aquaculture Innovation Centre (SAIC grant SL 2017 08, ‘Nutritional Aspects of Gill Disease in Atlantic Salmon’) and co-funded by BioMar and Scottish Sea Farms (SSF).
We thank SSF farm personnel for accommodating our research, performing gross morphology scoring and helping with sampling. Edinburgh Genomics is partly supported through core grants from NERC (R8/H10/56), MRC (MR/K001744/1), and BBSRC (BB/J004243/1). We also thank two reviewers for their comments on the earlier draft of the article. EK dedicates this paper to her late mother, Irena Król.
- Proliferative gill disease
- Gene Expression
- immune response
- gill inflammation
- Climate Change
- proliferative gill disease
- gene expression
- climate change