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RNA profiling identifies novel, photoperiod-history dependent markers associated with enhanced saltwater performance in juvenile Atlantic salmon
- Source :
- PLoS ONE, Vol 15, Iss 4, p e0227496 (2020), PLoS ONE, 15:e0227496, PLOS ONE
- Publication Year :
- 2020
- Publisher :
- Public Library of Science (PLoS), 2020.
-
Abstract
- Atlantic salmon migrate to sea following completion of a developmental process known as smolting, which establishes a seawater (SW) tolerant phenotype. Smolting is stimulated by exposure to long photoperiod or continuous light (LL) following a period of exposure to short photoperiod (SP), and this leads to major changes in gill ion exchange and osmoregulatory function. Here, we performed an RNAseq experiment to discover novel genes involved in photoperiod-dependent remodeling of the gill. This revealed a novel cohort of genes whose expression rises dramatically in fish transferred to LL following SP exposure, but not in control fish maintained continuously on LL or on SP. A follow-up experiment revealed that the SP-history dependence of LL induction of gene expression varies considerably between genes. Some genes were inducible by LL exposure after only 2 weeks exposure to SP, while others required 8 weeks prior SP exposure for maximum responsiveness to LL. Since subsequent SW growth performance is also markedly improved following 8 weeks SP exposure, these photoperiodic history-dependent genes may be useful predictive markers for full smolt development.
- Subjects :
- 0301 basic medicine
Gill
Gills
Time Factors
Respiratory System
Gene Expression
Marine and Aquatic Sciences
0302 clinical medicine
Salmon
Gene expression
Medicine and Health Sciences
Marine Fish
RNA-Seq
Animal Anatomy
Animal Management
photoperiodism
Regulation of gene expression
Multidisciplinary
Norway
VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Fisheries technology: 924
Gene Expression Regulation, Developmental
Eukaryota
Agriculture
Salt Tolerance
Phenotype
Chemistry
Osteichthyes
Vertebrates
Physical Sciences
Medicine
Anatomy
Research Article
endocrine system
VDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920::Fiskeriteknologi: 924
Fish Biology
Period (gene)
Photoperiod
Science
Salmo salar
Marine Biology
Biology
Andrology
03 medical and health sciences
Fish physiology
Chlorides
Genetics
Fish Physiology
Juvenile
Animal Physiology
Animals
Seawater
Life Cycle Stages
Animal Performance
Organisms
Chemical Compounds
Correction
Biology and Life Sciences
Vertebrate Physiology
030104 developmental biology
Fish
Aquatic Respiratory Anatomy
Earth Sciences
Animal Migration
Zoology
030217 neurology & neurosurgery
Subjects
Details
- Language :
- English
- ISSN :
- 19326203
- Volume :
- 15
- Issue :
- 4
- Database :
- OpenAIRE
- Journal :
- PLoS ONE
- Accession number :
- edsair.doi.dedup.....775d26a62f3b401d7f15b234aea8f18f