Reduction in muscle fibre number during the adaptive radiation of notothenioid fishes: a phylogenetic perspective

The fish fauna of the continental shelf of the Southern Ocean is dominated by a single sub-order of Perciformes, the Notothenioidei, which have unusually large diameter skeletal muscle fibres. We tested the hypothesis that in fast myotomal muscle a high maximum fibre diameter (FDmax) was related to...

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Published in:Journal of Experimental Biology
Main Authors: Johnston, Ian A., Fernández, Daniel A., Calvo, Jorge, Vieira, Vera L.A., North, Anthony W., Abercromby, Marguerite, Garland, Theodore
Format: Article in Journal/Newspaper
Language:unknown
Published: The Company of Biologists Ltd 2003
Subjects:
Online Access:http://nora.nerc.ac.uk/id/eprint/17669/
http://jeb.biologists.org/content/206/15/2595.full.pdf+html
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spelling ftnerc:oai:nora.nerc.ac.uk:17669 2023-05-15T13:04:01+02:00 Reduction in muscle fibre number during the adaptive radiation of notothenioid fishes: a phylogenetic perspective Johnston, Ian A. Fernández, Daniel A. Calvo, Jorge Vieira, Vera L.A. North, Anthony W. Abercromby, Marguerite Garland, Theodore 2003 http://nora.nerc.ac.uk/id/eprint/17669/ http://jeb.biologists.org/content/206/15/2595.full.pdf+html unknown The Company of Biologists Ltd Johnston, Ian A.; Fernández, Daniel A.; Calvo, Jorge; Vieira, Vera L.A.; North, Anthony W.; Abercromby, Marguerite; Garland, Theodore. 2003 Reduction in muscle fibre number during the adaptive radiation of notothenioid fishes: a phylogenetic perspective. Journal of Experimental Biology, 206 (15). 2595-2609. https://doi.org/10.1242/jeb.00474 <https://doi.org/10.1242/jeb.00474> Publication - Article PeerReviewed 2003 ftnerc https://doi.org/10.1242/jeb.00474 2023-02-04T19:31:17Z The fish fauna of the continental shelf of the Southern Ocean is dominated by a single sub-order of Perciformes, the Notothenioidei, which have unusually large diameter skeletal muscle fibres. We tested the hypothesis that in fast myotomal muscle a high maximum fibre diameter (FDmax) was related to a reduction in the number of muscle fibres present at the end of the recruitment phase of growth. We also hypothesized that the maximum fibre number (FNmax) would be negatively related to body size, and that both body size and size-corrected FNmax would show phylogenetic signal (tendency for related species to resemble each other). Finally, we estimated ancestral values for body size and FNmax. A molecular phylogeny was constructed using 12S mitochondrial rRNA sequences. A total of 16 species were studied from the Beagle Channel, Tierra del Fuego (5–11°C), Shag Rocks, South Georgia (0.5–4°C), and Adelaide Island, Antarctic Peninsula (–1.5 to 0.5°C). The absence of muscle fibres of less than 10·mm diameter was used as the criterion for the cessation of fibre recruitment. FDmax increased linearly with standard length (SL), reaching 500–650·mm in most species. Maximum body size was a highly significant predictor of species variation in FNmax, and both body size and size-corrected FNmax showed highly significant phylogenetic signal (P<0.001). Estimates of trait values atnodes of the maximum likelihood phylogenetic tree were consistent with a progressive reduction in fibre number during part of the notothenioid radiation, perhaps serving to reduce basal energy requirements to compensate for the additional energetic costs of antifreeze production. For example, FNmax in Chaenocephalus aceratus (12·700±300, mean ± S.E.M., N=18) was only 7.7% of the value found in Eleginops maclovinus (164·000±4100, N=17), which reaches a similar maximum length (85·cm). Postembryonic muscle fibre recruitment in teleost fish normally involves stratified followed by mosaic hyperplasia. No evidence for this final phase of growth was found in ... Article in Journal/Newspaper Adelaide Island Antarc* Antarctic Antarctic Peninsula Southern Ocean Tierra del Fuego Natural Environment Research Council: NERC Open Research Archive Antarctic Southern Ocean Antarctic Peninsula Adelaide Island ENVELOPE(-68.914,-68.914,-67.762,-67.762) Shag Rocks ENVELOPE(-42.033,-42.033,-53.550,-53.550) Journal of Experimental Biology 206 15 2595 2609
institution Open Polar
collection Natural Environment Research Council: NERC Open Research Archive
op_collection_id ftnerc
language unknown
description The fish fauna of the continental shelf of the Southern Ocean is dominated by a single sub-order of Perciformes, the Notothenioidei, which have unusually large diameter skeletal muscle fibres. We tested the hypothesis that in fast myotomal muscle a high maximum fibre diameter (FDmax) was related to a reduction in the number of muscle fibres present at the end of the recruitment phase of growth. We also hypothesized that the maximum fibre number (FNmax) would be negatively related to body size, and that both body size and size-corrected FNmax would show phylogenetic signal (tendency for related species to resemble each other). Finally, we estimated ancestral values for body size and FNmax. A molecular phylogeny was constructed using 12S mitochondrial rRNA sequences. A total of 16 species were studied from the Beagle Channel, Tierra del Fuego (5–11°C), Shag Rocks, South Georgia (0.5–4°C), and Adelaide Island, Antarctic Peninsula (–1.5 to 0.5°C). The absence of muscle fibres of less than 10·mm diameter was used as the criterion for the cessation of fibre recruitment. FDmax increased linearly with standard length (SL), reaching 500–650·mm in most species. Maximum body size was a highly significant predictor of species variation in FNmax, and both body size and size-corrected FNmax showed highly significant phylogenetic signal (P<0.001). Estimates of trait values atnodes of the maximum likelihood phylogenetic tree were consistent with a progressive reduction in fibre number during part of the notothenioid radiation, perhaps serving to reduce basal energy requirements to compensate for the additional energetic costs of antifreeze production. For example, FNmax in Chaenocephalus aceratus (12·700±300, mean ± S.E.M., N=18) was only 7.7% of the value found in Eleginops maclovinus (164·000±4100, N=17), which reaches a similar maximum length (85·cm). Postembryonic muscle fibre recruitment in teleost fish normally involves stratified followed by mosaic hyperplasia. No evidence for this final phase of growth was found in ...
format Article in Journal/Newspaper
author Johnston, Ian A.
Fernández, Daniel A.
Calvo, Jorge
Vieira, Vera L.A.
North, Anthony W.
Abercromby, Marguerite
Garland, Theodore
spellingShingle Johnston, Ian A.
Fernández, Daniel A.
Calvo, Jorge
Vieira, Vera L.A.
North, Anthony W.
Abercromby, Marguerite
Garland, Theodore
Reduction in muscle fibre number during the adaptive radiation of notothenioid fishes: a phylogenetic perspective
author_facet Johnston, Ian A.
Fernández, Daniel A.
Calvo, Jorge
Vieira, Vera L.A.
North, Anthony W.
Abercromby, Marguerite
Garland, Theodore
author_sort Johnston, Ian A.
title Reduction in muscle fibre number during the adaptive radiation of notothenioid fishes: a phylogenetic perspective
title_short Reduction in muscle fibre number during the adaptive radiation of notothenioid fishes: a phylogenetic perspective
title_full Reduction in muscle fibre number during the adaptive radiation of notothenioid fishes: a phylogenetic perspective
title_fullStr Reduction in muscle fibre number during the adaptive radiation of notothenioid fishes: a phylogenetic perspective
title_full_unstemmed Reduction in muscle fibre number during the adaptive radiation of notothenioid fishes: a phylogenetic perspective
title_sort reduction in muscle fibre number during the adaptive radiation of notothenioid fishes: a phylogenetic perspective
publisher The Company of Biologists Ltd
publishDate 2003
url http://nora.nerc.ac.uk/id/eprint/17669/
http://jeb.biologists.org/content/206/15/2595.full.pdf+html
long_lat ENVELOPE(-68.914,-68.914,-67.762,-67.762)
ENVELOPE(-42.033,-42.033,-53.550,-53.550)
geographic Antarctic
Southern Ocean
Antarctic Peninsula
Adelaide Island
Shag Rocks
geographic_facet Antarctic
Southern Ocean
Antarctic Peninsula
Adelaide Island
Shag Rocks
genre Adelaide Island
Antarc*
Antarctic
Antarctic Peninsula
Southern Ocean
Tierra del Fuego
genre_facet Adelaide Island
Antarc*
Antarctic
Antarctic Peninsula
Southern Ocean
Tierra del Fuego
op_relation Johnston, Ian A.; Fernández, Daniel A.; Calvo, Jorge; Vieira, Vera L.A.; North, Anthony W.; Abercromby, Marguerite; Garland, Theodore. 2003 Reduction in muscle fibre number during the adaptive radiation of notothenioid fishes: a phylogenetic perspective. Journal of Experimental Biology, 206 (15). 2595-2609. https://doi.org/10.1242/jeb.00474 <https://doi.org/10.1242/jeb.00474>
op_doi https://doi.org/10.1242/jeb.00474
container_title Journal of Experimental Biology
container_volume 206
container_issue 15
container_start_page 2595
op_container_end_page 2609
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