Genetic architecture of threshold reaction norms for male alternative reproductive tactics in Atlantic salmon (Salmo salar L.)
Alternative mating tactics have important ecological and evolutionary implications and are determined by complex interactions between environmental and genetic factors. Here, we study the genetic effect and architecture of the variability in reproductive tactics among Atlantic salmon males which can...
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ftinraparis:oai:prodinra.inra.fr:388134 2023-05-15T15:30:47+02:00 Genetic architecture of threshold reaction norms for male alternative reproductive tactics in Atlantic salmon (Salmo salar L.) Lepais, Olivier Manicki, Aurélie Glise, Stéphane Buoro, Mathieu Bardonnet, Agnes 2017 application/pdf http://prodinra.inra.fr/ft/27F263B4-47C7-41C0-8F7E-184DD492CB1F http://prodinra.inra.fr/record/388134 https://doi.org/10.1038/srep43552 eng eng http://creativecommons.org/licenses/by-nd-nc/1.0/ CC-BY-ND-NC Scientific Reports 43552 (7), . (2017) Biodiversité et Ecologie Biodiversity and Ecology salmo salar tacon tactique de reproduction alternative reproduction maturation précoce facteur génétique facteur environnemental modèle population naturelle ARTICLE 2017 ftinraparis https://doi.org/10.1038/srep43552 2017-04-18T22:24:17Z Alternative mating tactics have important ecological and evolutionary implications and are determined by complex interactions between environmental and genetic factors. Here, we study the genetic effect and architecture of the variability in reproductive tactics among Atlantic salmon males which can either mature sexually early in life in freshwater or more commonly only after completing a migration at sea. We applied the latent environmental threshold model (LETM), which provides a conceptual framework linking individual status to a threshold controlling the decision to develop alternative traits, in an innovative experimental design using a semi-natural river which allowed for ecologically relevant phenotypic expression. Early male parr maturation rates varied greatly across families (10 to 93%) which translated into 90% [64–100%] of the phenotypic variation explained by genetic variation. Three significant QTLs were found for the maturation status, however only one collocated with a highly significant QTL explaining 20.6% of the variability of the maturation threshold located on chromosome 25 and encompassing a locus previously shown to be linked to sea age at maturity in anadromous Atlantic salmon. These results provide new empirical illustration of the relevance of the LETM for a better understanding of alternative mating tactics evolution in natural populations. Article in Journal/Newspaper Atlantic salmon Salmo salar Institut National de la Recherche Agronomique: ProdINRA Scientific Reports 7 1 |
institution |
Open Polar |
collection |
Institut National de la Recherche Agronomique: ProdINRA |
op_collection_id |
ftinraparis |
language |
English |
topic |
Biodiversité et Ecologie Biodiversity and Ecology salmo salar tacon tactique de reproduction alternative reproduction maturation précoce facteur génétique facteur environnemental modèle population naturelle |
spellingShingle |
Biodiversité et Ecologie Biodiversity and Ecology salmo salar tacon tactique de reproduction alternative reproduction maturation précoce facteur génétique facteur environnemental modèle population naturelle Lepais, Olivier Manicki, Aurélie Glise, Stéphane Buoro, Mathieu Bardonnet, Agnes Genetic architecture of threshold reaction norms for male alternative reproductive tactics in Atlantic salmon (Salmo salar L.) |
topic_facet |
Biodiversité et Ecologie Biodiversity and Ecology salmo salar tacon tactique de reproduction alternative reproduction maturation précoce facteur génétique facteur environnemental modèle population naturelle |
description |
Alternative mating tactics have important ecological and evolutionary implications and are determined by complex interactions between environmental and genetic factors. Here, we study the genetic effect and architecture of the variability in reproductive tactics among Atlantic salmon males which can either mature sexually early in life in freshwater or more commonly only after completing a migration at sea. We applied the latent environmental threshold model (LETM), which provides a conceptual framework linking individual status to a threshold controlling the decision to develop alternative traits, in an innovative experimental design using a semi-natural river which allowed for ecologically relevant phenotypic expression. Early male parr maturation rates varied greatly across families (10 to 93%) which translated into 90% [64–100%] of the phenotypic variation explained by genetic variation. Three significant QTLs were found for the maturation status, however only one collocated with a highly significant QTL explaining 20.6% of the variability of the maturation threshold located on chromosome 25 and encompassing a locus previously shown to be linked to sea age at maturity in anadromous Atlantic salmon. These results provide new empirical illustration of the relevance of the LETM for a better understanding of alternative mating tactics evolution in natural populations. |
format |
Article in Journal/Newspaper |
author |
Lepais, Olivier Manicki, Aurélie Glise, Stéphane Buoro, Mathieu Bardonnet, Agnes |
author_facet |
Lepais, Olivier Manicki, Aurélie Glise, Stéphane Buoro, Mathieu Bardonnet, Agnes |
author_sort |
Lepais, Olivier |
title |
Genetic architecture of threshold reaction norms for male alternative reproductive tactics in Atlantic salmon (Salmo salar L.) |
title_short |
Genetic architecture of threshold reaction norms for male alternative reproductive tactics in Atlantic salmon (Salmo salar L.) |
title_full |
Genetic architecture of threshold reaction norms for male alternative reproductive tactics in Atlantic salmon (Salmo salar L.) |
title_fullStr |
Genetic architecture of threshold reaction norms for male alternative reproductive tactics in Atlantic salmon (Salmo salar L.) |
title_full_unstemmed |
Genetic architecture of threshold reaction norms for male alternative reproductive tactics in Atlantic salmon (Salmo salar L.) |
title_sort |
genetic architecture of threshold reaction norms for male alternative reproductive tactics in atlantic salmon (salmo salar l.) |
publishDate |
2017 |
url |
http://prodinra.inra.fr/ft/27F263B4-47C7-41C0-8F7E-184DD492CB1F http://prodinra.inra.fr/record/388134 https://doi.org/10.1038/srep43552 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Scientific Reports 43552 (7), . (2017) |
op_rights |
http://creativecommons.org/licenses/by-nd-nc/1.0/ |
op_rightsnorm |
CC-BY-ND-NC |
op_doi |
https://doi.org/10.1038/srep43552 |
container_title |
Scientific Reports |
container_volume |
7 |
container_issue |
1 |
_version_ |
1766361235264110592 |