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Body-shape trajectories and their genetic variance component in Gilthead seabream (Sparus aurata L.)
The phenotype of juvenile fish is closely associated with the adult phenotype, thus consisting an important quality trait for reared fish stocks. In this study, we estimated the correlation between the juvenile and adult body-shape in Gilthead seabream, and examined the genetic basis of the ontogene...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8379248/ https://www.ncbi.nlm.nih.gov/pubmed/34417489 http://dx.doi.org/10.1038/s41598-021-95726-9 |
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author | Fragkoulis, Stefanos Kerasovitis, Dimosthenis Batargias, Costas Koumoundouros, George |
author_facet | Fragkoulis, Stefanos Kerasovitis, Dimosthenis Batargias, Costas Koumoundouros, George |
author_sort | Fragkoulis, Stefanos |
collection | PubMed |
description | The phenotype of juvenile fish is closely associated with the adult phenotype, thus consisting an important quality trait for reared fish stocks. In this study, we estimated the correlation between the juvenile and adult body-shape in Gilthead seabream, and examined the genetic basis of the ontogenetic trajectories. The body shape of 959 pit-tagged fish was periodically examined during the juvenile-to-adult period. Individual shape ontogenetic trajectories were studied in respect to the initial (juvenile) and final (adult) phenotypes, as well as to the rate that adult phenotype is attained (phenotypic integration rate). We found that the juvenile body-shape presented a rapid change up to 192.7 ± 1.9 mm standard length, followed by a phenotypically stable period (plateau). Depending on the shape component considered, body-shape correlations between juvenile and adult stages ranged from 0.22 to 0.76. Heritability estimates (h(2)) of the final phenotype ranged from 0.370 ± 0.077 to 0.511 ± 0.089, whereas h(2) for the phenotypic integration rate was 0.173 ± 0.062. To our knowledge, this is the first study demonstrating that the variance of the ontogenetic trajectories has a substantial additive genetic component. Results are discussed in respect to their potential use in selective breeding programs of Gilthead seabream. |
format | Online Article Text |
id | pubmed-8379248 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-83792482021-08-27 Body-shape trajectories and their genetic variance component in Gilthead seabream (Sparus aurata L.) Fragkoulis, Stefanos Kerasovitis, Dimosthenis Batargias, Costas Koumoundouros, George Sci Rep Article The phenotype of juvenile fish is closely associated with the adult phenotype, thus consisting an important quality trait for reared fish stocks. In this study, we estimated the correlation between the juvenile and adult body-shape in Gilthead seabream, and examined the genetic basis of the ontogenetic trajectories. The body shape of 959 pit-tagged fish was periodically examined during the juvenile-to-adult period. Individual shape ontogenetic trajectories were studied in respect to the initial (juvenile) and final (adult) phenotypes, as well as to the rate that adult phenotype is attained (phenotypic integration rate). We found that the juvenile body-shape presented a rapid change up to 192.7 ± 1.9 mm standard length, followed by a phenotypically stable period (plateau). Depending on the shape component considered, body-shape correlations between juvenile and adult stages ranged from 0.22 to 0.76. Heritability estimates (h(2)) of the final phenotype ranged from 0.370 ± 0.077 to 0.511 ± 0.089, whereas h(2) for the phenotypic integration rate was 0.173 ± 0.062. To our knowledge, this is the first study demonstrating that the variance of the ontogenetic trajectories has a substantial additive genetic component. Results are discussed in respect to their potential use in selective breeding programs of Gilthead seabream. Nature Publishing Group UK 2021-08-20 /pmc/articles/PMC8379248/ /pubmed/34417489 http://dx.doi.org/10.1038/s41598-021-95726-9 Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Fragkoulis, Stefanos Kerasovitis, Dimosthenis Batargias, Costas Koumoundouros, George Body-shape trajectories and their genetic variance component in Gilthead seabream (Sparus aurata L.) |
title | Body-shape trajectories and their genetic variance component in Gilthead seabream (Sparus aurata L.) |
title_full | Body-shape trajectories and their genetic variance component in Gilthead seabream (Sparus aurata L.) |
title_fullStr | Body-shape trajectories and their genetic variance component in Gilthead seabream (Sparus aurata L.) |
title_full_unstemmed | Body-shape trajectories and their genetic variance component in Gilthead seabream (Sparus aurata L.) |
title_short | Body-shape trajectories and their genetic variance component in Gilthead seabream (Sparus aurata L.) |
title_sort | body-shape trajectories and their genetic variance component in gilthead seabream (sparus aurata l.) |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8379248/ https://www.ncbi.nlm.nih.gov/pubmed/34417489 http://dx.doi.org/10.1038/s41598-021-95726-9 |
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