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Genetic Evidence Confirms Polygamous Mating System in a Crustacean Parasite with Multiple Hosts

Mating systems are diverse in animals, notably in crustaceans, but can be inferred from a limited set of parameters. Baeza and Thiel (2007) proposed a model predicting mating systems of symbiotic crustaceans with three host characteristics and the risk of predation. These authors proposed five matin...

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Autores principales: Jossart, Quentin, Wattier, Rémi A., Kastally, Chedly, Aron, Serge, David, Bruno, De Ridder, Chantal, Rigaud, Thierry
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3946544/
https://www.ncbi.nlm.nih.gov/pubmed/24609105
http://dx.doi.org/10.1371/journal.pone.0090680
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author Jossart, Quentin
Wattier, Rémi A.
Kastally, Chedly
Aron, Serge
David, Bruno
De Ridder, Chantal
Rigaud, Thierry
author_facet Jossart, Quentin
Wattier, Rémi A.
Kastally, Chedly
Aron, Serge
David, Bruno
De Ridder, Chantal
Rigaud, Thierry
author_sort Jossart, Quentin
collection PubMed
description Mating systems are diverse in animals, notably in crustaceans, but can be inferred from a limited set of parameters. Baeza and Thiel (2007) proposed a model predicting mating systems of symbiotic crustaceans with three host characteristics and the risk of predation. These authors proposed five mating systems, ranging from monogamy to polygynandry (where multiple mating occurs for both genders). Using microsatellite loci, we tested the putatively mating system of the ectoparasite crab Dissodactylus primitivus. We determined the mating frequencies of males and females, parentage assignment (COLONY & GERUD software) as well as the contents of female spermathecae. Our results are globally consistent with the model of Baeza and Thiel and showed, together with previous aquarium experiments, that this ectoparasite evolved a polygamous mating system where males and females move between hosts for mate search. Parentage analyses revealed that polyandry is frequent and concerns more than 60% of clutches, with clutches being fertilized by up to 6 different fathers. Polygyny is supported by the detection of eight males having sired two different broods. We also detected a significant paternity skew in 92% of the multipaternal broods. Moreover, this skew is probably higher than the estimation from the brood because additional alleles were detected in most of spermathecae. This high skew could be explained by several factors as sperm competition or cryptic female choice. Our genetic data, combined with previous anatomic analyses, provide consistent arguments to suggest sperm precedence in D. primitivus.
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spelling pubmed-39465442014-03-10 Genetic Evidence Confirms Polygamous Mating System in a Crustacean Parasite with Multiple Hosts Jossart, Quentin Wattier, Rémi A. Kastally, Chedly Aron, Serge David, Bruno De Ridder, Chantal Rigaud, Thierry PLoS One Research Article Mating systems are diverse in animals, notably in crustaceans, but can be inferred from a limited set of parameters. Baeza and Thiel (2007) proposed a model predicting mating systems of symbiotic crustaceans with three host characteristics and the risk of predation. These authors proposed five mating systems, ranging from monogamy to polygynandry (where multiple mating occurs for both genders). Using microsatellite loci, we tested the putatively mating system of the ectoparasite crab Dissodactylus primitivus. We determined the mating frequencies of males and females, parentage assignment (COLONY & GERUD software) as well as the contents of female spermathecae. Our results are globally consistent with the model of Baeza and Thiel and showed, together with previous aquarium experiments, that this ectoparasite evolved a polygamous mating system where males and females move between hosts for mate search. Parentage analyses revealed that polyandry is frequent and concerns more than 60% of clutches, with clutches being fertilized by up to 6 different fathers. Polygyny is supported by the detection of eight males having sired two different broods. We also detected a significant paternity skew in 92% of the multipaternal broods. Moreover, this skew is probably higher than the estimation from the brood because additional alleles were detected in most of spermathecae. This high skew could be explained by several factors as sperm competition or cryptic female choice. Our genetic data, combined with previous anatomic analyses, provide consistent arguments to suggest sperm precedence in D. primitivus. Public Library of Science 2014-03-07 /pmc/articles/PMC3946544/ /pubmed/24609105 http://dx.doi.org/10.1371/journal.pone.0090680 Text en © 2014 Jossart et al http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.
spellingShingle Research Article
Jossart, Quentin
Wattier, Rémi A.
Kastally, Chedly
Aron, Serge
David, Bruno
De Ridder, Chantal
Rigaud, Thierry
Genetic Evidence Confirms Polygamous Mating System in a Crustacean Parasite with Multiple Hosts
title Genetic Evidence Confirms Polygamous Mating System in a Crustacean Parasite with Multiple Hosts
title_full Genetic Evidence Confirms Polygamous Mating System in a Crustacean Parasite with Multiple Hosts
title_fullStr Genetic Evidence Confirms Polygamous Mating System in a Crustacean Parasite with Multiple Hosts
title_full_unstemmed Genetic Evidence Confirms Polygamous Mating System in a Crustacean Parasite with Multiple Hosts
title_short Genetic Evidence Confirms Polygamous Mating System in a Crustacean Parasite with Multiple Hosts
title_sort genetic evidence confirms polygamous mating system in a crustacean parasite with multiple hosts
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3946544/
https://www.ncbi.nlm.nih.gov/pubmed/24609105
http://dx.doi.org/10.1371/journal.pone.0090680
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