Evolution and Expression of the Immune System of a Facultatively Anadromous Salmonid.

ABSTRACT: Vertebrates have evolved a complex immune system required for the identification of and coordinated response to harmful pathogens. Migratory species spend periods of their life-cycle in more than one environment, and their immune system consequently faces a greater diversity of pathogens residing in different environments. In facultatively anadromous salmonids, individuals may spend parts of their life-cycle in freshwater and marine environments. For species such as the brown trout Salmo trutta, sexes differ in their life-histories with females more likely to migrate to sea while males are more likely to stay and complete their life-cycle in their natal river. Salmonids have also undergone a lineage-specific whole genome duplication event, which may provide novel immune innovations

SUBMITTER: Colgan TJ 

PROVIDER: S-EPMC7952528 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature