Phenotypic plasticity of early myogenesis and satellite cell numbers in Atlantic salmon spawning in uplant and lowland tributaries of a river system
Early myogenesis was studied in the offspring of Atlantic salmon (Salmo salar L.) spawning in a lowland (Sheeoch) and an upland (Baddoch) tributary of the River Dee System, Aberdeenshire, Scotland. Eggs from each population were incubated at the simulated natural thermal regimes of each stream, whic...
Main Authors: | , , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2000
|
Subjects: | |
Online Access: | https://risweb.st-andrews.ac.uk/portal/en/researchoutput/phenotypic-plasticity-of-early-myogenesis-and-satellite-cell-numbers-in-atlantic-salmon-spawning-in-uplant-and-lowland-tributaries-of-a-river-system(af56eb14-8547-465c-8205-1ad43c306e6f).html http://www.scopus.com/inward/record.url?scp=0033796525&partnerID=8YFLogxK http://www.biologists.com/JEB/ |
id |
ftunstandrewcris:oai:risweb.st-andrews.ac.uk:publications/af56eb14-8547-465c-8205-1ad43c306e6f |
---|---|
record_format |
openpolar |
spelling |
ftunstandrewcris:oai:risweb.st-andrews.ac.uk:publications/af56eb14-8547-465c-8205-1ad43c306e6f 2023-05-15T15:31:28+02:00 Phenotypic plasticity of early myogenesis and satellite cell numbers in Atlantic salmon spawning in uplant and lowland tributaries of a river system Johnston, Ian Alistair McLay, HA Abercromby, M Robins, D 2000-09 https://risweb.st-andrews.ac.uk/portal/en/researchoutput/phenotypic-plasticity-of-early-myogenesis-and-satellite-cell-numbers-in-atlantic-salmon-spawning-in-uplant-and-lowland-tributaries-of-a-river-system(af56eb14-8547-465c-8205-1ad43c306e6f).html http://www.scopus.com/inward/record.url?scp=0033796525&partnerID=8YFLogxK http://www.biologists.com/JEB/ eng eng info:eu-repo/semantics/restrictedAccess Johnston , I A , McLay , HA , Abercromby , M & Robins , D 2000 , ' Phenotypic plasticity of early myogenesis and satellite cell numbers in Atlantic salmon spawning in uplant and lowland tributaries of a river system ' , Journal of Experimental Biology , vol. 203 , no. 17 , pp. 2539-2552 . skeletal muscle muscle growth satellite cell myogenic regulatory factor temperature fish population Atlantic salmon Salmo salar HERRING CLUPEA-HARENGUS SKELETAL-MUSCLE SALAR L NO TAIL GROWTH DIFFERENTIATION HYPERTROPHY EMBRYOS FISH article 2000 ftunstandrewcris 2021-12-26T14:10:09Z Early myogenesis was studied in the offspring of Atlantic salmon (Salmo salar L.) spawning in a lowland (Sheeoch) and an upland (Baddoch) tributary of the River Dee System, Aberdeenshire, Scotland. Eggs from each population were incubated at the simulated natural thermal regimes of each stream, which was on average 2.8 degrees C cooler for the Baddoch than for the Sheeoch. Relationships between muscle cellularity variables, the density of myonuclei and responses to temperature mere investigated using multivariate statistical techniques. These revealed highly significant temperature effects (P<0.001) at hatch (H) and first feeding (FF) and significant interactions between population and temperature (P<0.001), indicating that Baddoch and Sheeoch salmon responded differently to the two temperature regimes. The total cross-sectional area of white muscle (WF.ta) at the adipose fin was relatively independent of temperature at hatch and first feeding in the Sheeoch population. In contrast, for alevins of Baddoch origin, WF.ta was 18.9% (H) and 30.5% (FF) higher in fish incubated at Baddoch than at Sheeoch temperatures. At hatch, there were 15.6% more white muscle fibres (WF.no) at the cooler incubation temperature in fish of Sheeoch origin and 6.0% more in fish of Baddoch origin. However, by first feeding, the difference in WF.no between temperatures had narrowed to 7.2% in the Sheeoch fish and increased to 17.4% in the Baddoch population In contrast, at hatch, the density of myonuclei was 59.8% higher at the warmer incubation temperature in the Sheeoch population and 23.5% higher in the Baddoch population, but differences were less evident at first feeding. In Baddoch fish, 22.5% of the total muscle nuclei mere actively dividing at first feeding, as assessed by staining for proliferating cell nuclear antigen (PCNA), Of the PCNA-positive nuclei, 78% were present in cells that stained for the c-met tyrosine kinase receptor, a marker of satellite cells and their division products. The proportion of c-met-positive ... Article in Journal/Newspaper Atlantic salmon Salmo salar University of St Andrews: Research Portal Dee ENVELOPE(-59.767,-59.767,-62.433,-62.433) |
institution |
Open Polar |
collection |
University of St Andrews: Research Portal |
op_collection_id |
ftunstandrewcris |
language |
English |
topic |
skeletal muscle muscle growth satellite cell myogenic regulatory factor temperature fish population Atlantic salmon Salmo salar HERRING CLUPEA-HARENGUS SKELETAL-MUSCLE SALAR L NO TAIL GROWTH DIFFERENTIATION HYPERTROPHY EMBRYOS FISH |
spellingShingle |
skeletal muscle muscle growth satellite cell myogenic regulatory factor temperature fish population Atlantic salmon Salmo salar HERRING CLUPEA-HARENGUS SKELETAL-MUSCLE SALAR L NO TAIL GROWTH DIFFERENTIATION HYPERTROPHY EMBRYOS FISH Johnston, Ian Alistair McLay, HA Abercromby, M Robins, D Phenotypic plasticity of early myogenesis and satellite cell numbers in Atlantic salmon spawning in uplant and lowland tributaries of a river system |
topic_facet |
skeletal muscle muscle growth satellite cell myogenic regulatory factor temperature fish population Atlantic salmon Salmo salar HERRING CLUPEA-HARENGUS SKELETAL-MUSCLE SALAR L NO TAIL GROWTH DIFFERENTIATION HYPERTROPHY EMBRYOS FISH |
description |
Early myogenesis was studied in the offspring of Atlantic salmon (Salmo salar L.) spawning in a lowland (Sheeoch) and an upland (Baddoch) tributary of the River Dee System, Aberdeenshire, Scotland. Eggs from each population were incubated at the simulated natural thermal regimes of each stream, which was on average 2.8 degrees C cooler for the Baddoch than for the Sheeoch. Relationships between muscle cellularity variables, the density of myonuclei and responses to temperature mere investigated using multivariate statistical techniques. These revealed highly significant temperature effects (P<0.001) at hatch (H) and first feeding (FF) and significant interactions between population and temperature (P<0.001), indicating that Baddoch and Sheeoch salmon responded differently to the two temperature regimes. The total cross-sectional area of white muscle (WF.ta) at the adipose fin was relatively independent of temperature at hatch and first feeding in the Sheeoch population. In contrast, for alevins of Baddoch origin, WF.ta was 18.9% (H) and 30.5% (FF) higher in fish incubated at Baddoch than at Sheeoch temperatures. At hatch, there were 15.6% more white muscle fibres (WF.no) at the cooler incubation temperature in fish of Sheeoch origin and 6.0% more in fish of Baddoch origin. However, by first feeding, the difference in WF.no between temperatures had narrowed to 7.2% in the Sheeoch fish and increased to 17.4% in the Baddoch population In contrast, at hatch, the density of myonuclei was 59.8% higher at the warmer incubation temperature in the Sheeoch population and 23.5% higher in the Baddoch population, but differences were less evident at first feeding. In Baddoch fish, 22.5% of the total muscle nuclei mere actively dividing at first feeding, as assessed by staining for proliferating cell nuclear antigen (PCNA), Of the PCNA-positive nuclei, 78% were present in cells that stained for the c-met tyrosine kinase receptor, a marker of satellite cells and their division products. The proportion of c-met-positive ... |
format |
Article in Journal/Newspaper |
author |
Johnston, Ian Alistair McLay, HA Abercromby, M Robins, D |
author_facet |
Johnston, Ian Alistair McLay, HA Abercromby, M Robins, D |
author_sort |
Johnston, Ian Alistair |
title |
Phenotypic plasticity of early myogenesis and satellite cell numbers in Atlantic salmon spawning in uplant and lowland tributaries of a river system |
title_short |
Phenotypic plasticity of early myogenesis and satellite cell numbers in Atlantic salmon spawning in uplant and lowland tributaries of a river system |
title_full |
Phenotypic plasticity of early myogenesis and satellite cell numbers in Atlantic salmon spawning in uplant and lowland tributaries of a river system |
title_fullStr |
Phenotypic plasticity of early myogenesis and satellite cell numbers in Atlantic salmon spawning in uplant and lowland tributaries of a river system |
title_full_unstemmed |
Phenotypic plasticity of early myogenesis and satellite cell numbers in Atlantic salmon spawning in uplant and lowland tributaries of a river system |
title_sort |
phenotypic plasticity of early myogenesis and satellite cell numbers in atlantic salmon spawning in uplant and lowland tributaries of a river system |
publishDate |
2000 |
url |
https://risweb.st-andrews.ac.uk/portal/en/researchoutput/phenotypic-plasticity-of-early-myogenesis-and-satellite-cell-numbers-in-atlantic-salmon-spawning-in-uplant-and-lowland-tributaries-of-a-river-system(af56eb14-8547-465c-8205-1ad43c306e6f).html http://www.scopus.com/inward/record.url?scp=0033796525&partnerID=8YFLogxK http://www.biologists.com/JEB/ |
long_lat |
ENVELOPE(-59.767,-59.767,-62.433,-62.433) |
geographic |
Dee |
geographic_facet |
Dee |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Johnston , I A , McLay , HA , Abercromby , M & Robins , D 2000 , ' Phenotypic plasticity of early myogenesis and satellite cell numbers in Atlantic salmon spawning in uplant and lowland tributaries of a river system ' , Journal of Experimental Biology , vol. 203 , no. 17 , pp. 2539-2552 . |
op_rights |
info:eu-repo/semantics/restrictedAccess |
_version_ |
1766361970261360640 |