Alternative reproductive tactics increase effective population size and decrease inbreeding in wild Atlantic salmon
Abstract While nonanadromous males (stream‐resident and/or mature male parr) contribute to reproduction in anadromous salmonids, little is known about their impacts on key population genetic parameters. Here, we evaluated the contribution of Atlantic salmon mature male parr to the effective number o...
Published in: | Evolutionary Applications |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2014
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1111/eva.12172 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Feva.12172 https://onlinelibrary.wiley.com/doi/pdf/10.1111/eva.12172 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/eva.12172 |
id |
crwiley:10.1111/eva.12172 |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1111/eva.12172 2024-09-15T17:55:53+00:00 Alternative reproductive tactics increase effective population size and decrease inbreeding in wild Atlantic salmon Perrier, Charles Normandeau, Éric Dionne, Mélanie Richard, Antoine Bernatchez, Louis 2014 http://dx.doi.org/10.1111/eva.12172 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Feva.12172 https://onlinelibrary.wiley.com/doi/pdf/10.1111/eva.12172 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/eva.12172 en eng Wiley http://creativecommons.org/licenses/by/3.0/ Evolutionary Applications volume 7, issue 9, page 1094-1106 ISSN 1752-4571 1752-4571 journal-article 2014 crwiley https://doi.org/10.1111/eva.12172 2024-08-09T04:27:35Z Abstract While nonanadromous males (stream‐resident and/or mature male parr) contribute to reproduction in anadromous salmonids, little is known about their impacts on key population genetic parameters. Here, we evaluated the contribution of Atlantic salmon mature male parr to the effective number of breeders (Nb) using both demographic (variance in reproductive success) and genetic (linkage disequilibrium) methods, the number of alleles, and the relatedness among breeders. We used a recently published pedigree reconstruction of a wild anadromous Atlantic salmon population in which 2548 fry born in 2010 were assigned parentage to 144 anadromous female and 101 anadromous females that returned to the river to spawn in 2009 and to 462 mature male parr. Demographic and genetic methods revealed that mature male parr increased population Nb by 1.79 and 1.85 times, respectively. Moreover, mature male parr boosted the number of alleles found among progenies. Finally, mature male parr were in average less related to anadromous females than were anadromous males, likely because of asynchronous sexual maturation between mature male parr and anadromous fish of a given cohort. By increasing Nb and allelic richness, and by decreasing inbreeding, the reproductive contribution of mature male parr has important evolutionary and conservation implications for declining Atlantic salmon populations. Article in Journal/Newspaper Atlantic salmon Wiley Online Library Evolutionary Applications 7 9 1094 1106 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Abstract While nonanadromous males (stream‐resident and/or mature male parr) contribute to reproduction in anadromous salmonids, little is known about their impacts on key population genetic parameters. Here, we evaluated the contribution of Atlantic salmon mature male parr to the effective number of breeders (Nb) using both demographic (variance in reproductive success) and genetic (linkage disequilibrium) methods, the number of alleles, and the relatedness among breeders. We used a recently published pedigree reconstruction of a wild anadromous Atlantic salmon population in which 2548 fry born in 2010 were assigned parentage to 144 anadromous female and 101 anadromous females that returned to the river to spawn in 2009 and to 462 mature male parr. Demographic and genetic methods revealed that mature male parr increased population Nb by 1.79 and 1.85 times, respectively. Moreover, mature male parr boosted the number of alleles found among progenies. Finally, mature male parr were in average less related to anadromous females than were anadromous males, likely because of asynchronous sexual maturation between mature male parr and anadromous fish of a given cohort. By increasing Nb and allelic richness, and by decreasing inbreeding, the reproductive contribution of mature male parr has important evolutionary and conservation implications for declining Atlantic salmon populations. |
format |
Article in Journal/Newspaper |
author |
Perrier, Charles Normandeau, Éric Dionne, Mélanie Richard, Antoine Bernatchez, Louis |
spellingShingle |
Perrier, Charles Normandeau, Éric Dionne, Mélanie Richard, Antoine Bernatchez, Louis Alternative reproductive tactics increase effective population size and decrease inbreeding in wild Atlantic salmon |
author_facet |
Perrier, Charles Normandeau, Éric Dionne, Mélanie Richard, Antoine Bernatchez, Louis |
author_sort |
Perrier, Charles |
title |
Alternative reproductive tactics increase effective population size and decrease inbreeding in wild Atlantic salmon |
title_short |
Alternative reproductive tactics increase effective population size and decrease inbreeding in wild Atlantic salmon |
title_full |
Alternative reproductive tactics increase effective population size and decrease inbreeding in wild Atlantic salmon |
title_fullStr |
Alternative reproductive tactics increase effective population size and decrease inbreeding in wild Atlantic salmon |
title_full_unstemmed |
Alternative reproductive tactics increase effective population size and decrease inbreeding in wild Atlantic salmon |
title_sort |
alternative reproductive tactics increase effective population size and decrease inbreeding in wild atlantic salmon |
publisher |
Wiley |
publishDate |
2014 |
url |
http://dx.doi.org/10.1111/eva.12172 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Feva.12172 https://onlinelibrary.wiley.com/doi/pdf/10.1111/eva.12172 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/eva.12172 |
genre |
Atlantic salmon |
genre_facet |
Atlantic salmon |
op_source |
Evolutionary Applications volume 7, issue 9, page 1094-1106 ISSN 1752-4571 1752-4571 |
op_rights |
http://creativecommons.org/licenses/by/3.0/ |
op_doi |
https://doi.org/10.1111/eva.12172 |
container_title |
Evolutionary Applications |
container_volume |
7 |
container_issue |
9 |
container_start_page |
1094 |
op_container_end_page |
1106 |
_version_ |
1810432099876864000 |