Universal scaling rules predict evolutionary patterns of myogenesis in species with indeterminate growth
Intraspecific phenotypic variation is ubiquitous and often associated with resource exploitation in emerging habitats. For example, reduced body size has evolved repeatedly in Arctic charr (Salvelinus alpinus L.) and threespine stickleback (Gasterosteus aculeatus L.) across post-glacial habitats of...
Published in: | Proceedings of the Royal Society B: Biological Sciences |
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Language: | English |
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2012
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Online Access: | https://research-portal.st-andrews.ac.uk/en/researchoutput/universal-scaling-rules-predict-evolutionary-patterns-of-myogenesis-in-species-with-indeterminate-growth(9b7df472-9dce-4a41-ba54-ad1073dd293c).html https://doi.org/10.1098/rspb.2011.2536 https://research-repository.st-andrews.ac.uk/bitstream/10023/2170/1/JohnstonRSPB2011_2536_full.pdf |
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ftunstandrewcris:oai:research-portal.st-andrews.ac.uk:publications/9b7df472-9dce-4a41-ba54-ad1073dd293c 2024-06-23T07:48:54+00:00 Universal scaling rules predict evolutionary patterns of myogenesis in species with indeterminate growth Johnston, Ian Alistair Kristjansson, Bjarni K. Paxton, Charles G. M. Vieira-Johnston, Vera Lucia Almeida MacQueen, Daniel John Bell, Michael A. 2012-06-07 application/pdf https://research-portal.st-andrews.ac.uk/en/researchoutput/universal-scaling-rules-predict-evolutionary-patterns-of-myogenesis-in-species-with-indeterminate-growth(9b7df472-9dce-4a41-ba54-ad1073dd293c).html https://doi.org/10.1098/rspb.2011.2536 https://research-repository.st-andrews.ac.uk/bitstream/10023/2170/1/JohnstonRSPB2011_2536_full.pdf eng eng https://research-portal.st-andrews.ac.uk/en/researchoutput/universal-scaling-rules-predict-evolutionary-patterns-of-myogenesis-in-species-with-indeterminate-growth(9b7df472-9dce-4a41-ba54-ad1073dd293c).html info:eu-repo/semantics/openAccess Johnston , I A , Kristjansson , B K , Paxton , C G M , Vieira-Johnston , V L A , MacQueen , D J & Bell , M A 2012 , ' Universal scaling rules predict evolutionary patterns of myogenesis in species with indeterminate growth ' , Proceedings of the Royal Society B: Biological Sciences , vol. 279 , no. 1736 , pp. 2255-2261 . https://doi.org/10.1098/rspb.2011.2536 Parallel evolution Dwarfism Muscle fibres Threespine stickleback Arctic charr Scaling laws article 2012 ftunstandrewcris https://doi.org/10.1098/rspb.2011.2536 2024-06-13T00:32:44Z Intraspecific phenotypic variation is ubiquitous and often associated with resource exploitation in emerging habitats. For example, reduced body size has evolved repeatedly in Arctic charr (Salvelinus alpinus L.) and threespine stickleback (Gasterosteus aculeatus L.) across post-glacial habitats of the Northern Hemisphere. Exploiting these models, we examined how body size and myogenesis evolve with respect to the 'optimum fibre size hypothesis', which predicts that selection acts to minimize energetic costs associated with ionic homeostasis by optimizing muscle fibre production during development. In eight dwarf Icelandic Arctic charr populations, the ultimate production of fast-twitch muscle fibres (FN(max)) was only 39.5 and 15.5 per cent of that in large-bodied natural and aquaculture populations, respectively. Consequently, average fibre diameter (FD) scaled with a mass exponent of 0.19, paralleling the relaxation of diffusional constraints associated with mass-specific metabolic rate scaling. Similar reductions in FN(max) were observed for stickleback, including a small-bodied Alaskan population derived from a larger-bodied oceanic stock over a decadal timescale. The results suggest that in species showing indeterminate growth, body size evolution is accompanied by strong selection for fibre size optimization, theoretically allowing resources saved from ionic homeostasis to be allocated to other traits affecting fitness, including reproduction. Gene flow between small- and large-bodied populations residing in sympatry may counteract the evolution of this trait. Article in Journal/Newspaper Arctic charr Arctic Salvelinus alpinus University of St Andrews: Research Portal Arctic Proceedings of the Royal Society B: Biological Sciences 279 1736 2255 2261 |
institution |
Open Polar |
collection |
University of St Andrews: Research Portal |
op_collection_id |
ftunstandrewcris |
language |
English |
topic |
Parallel evolution Dwarfism Muscle fibres Threespine stickleback Arctic charr Scaling laws |
spellingShingle |
Parallel evolution Dwarfism Muscle fibres Threespine stickleback Arctic charr Scaling laws Johnston, Ian Alistair Kristjansson, Bjarni K. Paxton, Charles G. M. Vieira-Johnston, Vera Lucia Almeida MacQueen, Daniel John Bell, Michael A. Universal scaling rules predict evolutionary patterns of myogenesis in species with indeterminate growth |
topic_facet |
Parallel evolution Dwarfism Muscle fibres Threespine stickleback Arctic charr Scaling laws |
description |
Intraspecific phenotypic variation is ubiquitous and often associated with resource exploitation in emerging habitats. For example, reduced body size has evolved repeatedly in Arctic charr (Salvelinus alpinus L.) and threespine stickleback (Gasterosteus aculeatus L.) across post-glacial habitats of the Northern Hemisphere. Exploiting these models, we examined how body size and myogenesis evolve with respect to the 'optimum fibre size hypothesis', which predicts that selection acts to minimize energetic costs associated with ionic homeostasis by optimizing muscle fibre production during development. In eight dwarf Icelandic Arctic charr populations, the ultimate production of fast-twitch muscle fibres (FN(max)) was only 39.5 and 15.5 per cent of that in large-bodied natural and aquaculture populations, respectively. Consequently, average fibre diameter (FD) scaled with a mass exponent of 0.19, paralleling the relaxation of diffusional constraints associated with mass-specific metabolic rate scaling. Similar reductions in FN(max) were observed for stickleback, including a small-bodied Alaskan population derived from a larger-bodied oceanic stock over a decadal timescale. The results suggest that in species showing indeterminate growth, body size evolution is accompanied by strong selection for fibre size optimization, theoretically allowing resources saved from ionic homeostasis to be allocated to other traits affecting fitness, including reproduction. Gene flow between small- and large-bodied populations residing in sympatry may counteract the evolution of this trait. |
format |
Article in Journal/Newspaper |
author |
Johnston, Ian Alistair Kristjansson, Bjarni K. Paxton, Charles G. M. Vieira-Johnston, Vera Lucia Almeida MacQueen, Daniel John Bell, Michael A. |
author_facet |
Johnston, Ian Alistair Kristjansson, Bjarni K. Paxton, Charles G. M. Vieira-Johnston, Vera Lucia Almeida MacQueen, Daniel John Bell, Michael A. |
author_sort |
Johnston, Ian Alistair |
title |
Universal scaling rules predict evolutionary patterns of myogenesis in species with indeterminate growth |
title_short |
Universal scaling rules predict evolutionary patterns of myogenesis in species with indeterminate growth |
title_full |
Universal scaling rules predict evolutionary patterns of myogenesis in species with indeterminate growth |
title_fullStr |
Universal scaling rules predict evolutionary patterns of myogenesis in species with indeterminate growth |
title_full_unstemmed |
Universal scaling rules predict evolutionary patterns of myogenesis in species with indeterminate growth |
title_sort |
universal scaling rules predict evolutionary patterns of myogenesis in species with indeterminate growth |
publishDate |
2012 |
url |
https://research-portal.st-andrews.ac.uk/en/researchoutput/universal-scaling-rules-predict-evolutionary-patterns-of-myogenesis-in-species-with-indeterminate-growth(9b7df472-9dce-4a41-ba54-ad1073dd293c).html https://doi.org/10.1098/rspb.2011.2536 https://research-repository.st-andrews.ac.uk/bitstream/10023/2170/1/JohnstonRSPB2011_2536_full.pdf |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic charr Arctic Salvelinus alpinus |
genre_facet |
Arctic charr Arctic Salvelinus alpinus |
op_source |
Johnston , I A , Kristjansson , B K , Paxton , C G M , Vieira-Johnston , V L A , MacQueen , D J & Bell , M A 2012 , ' Universal scaling rules predict evolutionary patterns of myogenesis in species with indeterminate growth ' , Proceedings of the Royal Society B: Biological Sciences , vol. 279 , no. 1736 , pp. 2255-2261 . https://doi.org/10.1098/rspb.2011.2536 |
op_relation |
https://research-portal.st-andrews.ac.uk/en/researchoutput/universal-scaling-rules-predict-evolutionary-patterns-of-myogenesis-in-species-with-indeterminate-growth(9b7df472-9dce-4a41-ba54-ad1073dd293c).html |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1098/rspb.2011.2536 |
container_title |
Proceedings of the Royal Society B: Biological Sciences |
container_volume |
279 |
container_issue |
1736 |
container_start_page |
2255 |
op_container_end_page |
2261 |
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