Cargando…
The evolution of pueriparity maintains multiple paternity in a polymorphic viviparous salamander
The reduction in fecundity associated with the evolution of viviparity may have far-reaching implications for the ecology, demography, and evolution of populations. The evolution of a polygamous behaviour (e.g. polyandry) may counteract some of the effects underlying a lower fecundity, such as the r...
Autores principales: | , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2020
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7479106/ https://www.ncbi.nlm.nih.gov/pubmed/32901062 http://dx.doi.org/10.1038/s41598-020-71609-3 |
_version_ | 1783580198252314624 |
---|---|
author | Alarcón-Ríos, Lucía Nicieza, Alfredo G. Lourenço, André Velo-Antón, Guillermo |
author_facet | Alarcón-Ríos, Lucía Nicieza, Alfredo G. Lourenço, André Velo-Antón, Guillermo |
author_sort | Alarcón-Ríos, Lucía |
collection | PubMed |
description | The reduction in fecundity associated with the evolution of viviparity may have far-reaching implications for the ecology, demography, and evolution of populations. The evolution of a polygamous behaviour (e.g. polyandry) may counteract some of the effects underlying a lower fecundity, such as the reduction in genetic diversity. Comparing patterns of multiple paternity between reproductive modes allows us to understand how viviparity accounts for the trade-off between offspring quality and quantity. We analysed genetic patterns of paternity and offspring genetic diversity across 42 families from two modes of viviparity in a reproductive polymorphic species, Salamandra salamandra. This species shows an ancestral (larviparity: large clutches of free aquatic larvae), and a derived reproductive mode (pueriparity: smaller clutches of larger terrestrial juveniles). Our results confirm the existence of multiple paternity in pueriparous salamanders. Furthermore, we show the evolution of pueriparity maintains, and even increases, the occurrence of multiple paternity and the number of sires compared to larviparity, though we did not find a clear effect on genetic diversity. High incidence of multiple paternity in pueriparous populations might arise as a mechanism to avoid fertilization failures and to ensure reproductive success, and thus has important implications in highly isolated populations with small broods. |
format | Online Article Text |
id | pubmed-7479106 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-74791062020-09-11 The evolution of pueriparity maintains multiple paternity in a polymorphic viviparous salamander Alarcón-Ríos, Lucía Nicieza, Alfredo G. Lourenço, André Velo-Antón, Guillermo Sci Rep Article The reduction in fecundity associated with the evolution of viviparity may have far-reaching implications for the ecology, demography, and evolution of populations. The evolution of a polygamous behaviour (e.g. polyandry) may counteract some of the effects underlying a lower fecundity, such as the reduction in genetic diversity. Comparing patterns of multiple paternity between reproductive modes allows us to understand how viviparity accounts for the trade-off between offspring quality and quantity. We analysed genetic patterns of paternity and offspring genetic diversity across 42 families from two modes of viviparity in a reproductive polymorphic species, Salamandra salamandra. This species shows an ancestral (larviparity: large clutches of free aquatic larvae), and a derived reproductive mode (pueriparity: smaller clutches of larger terrestrial juveniles). Our results confirm the existence of multiple paternity in pueriparous salamanders. Furthermore, we show the evolution of pueriparity maintains, and even increases, the occurrence of multiple paternity and the number of sires compared to larviparity, though we did not find a clear effect on genetic diversity. High incidence of multiple paternity in pueriparous populations might arise as a mechanism to avoid fertilization failures and to ensure reproductive success, and thus has important implications in highly isolated populations with small broods. Nature Publishing Group UK 2020-09-08 /pmc/articles/PMC7479106/ /pubmed/32901062 http://dx.doi.org/10.1038/s41598-020-71609-3 Text en © The Author(s) 2020 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/. |
spellingShingle | Article Alarcón-Ríos, Lucía Nicieza, Alfredo G. Lourenço, André Velo-Antón, Guillermo The evolution of pueriparity maintains multiple paternity in a polymorphic viviparous salamander |
title | The evolution of pueriparity maintains multiple paternity in a polymorphic viviparous salamander |
title_full | The evolution of pueriparity maintains multiple paternity in a polymorphic viviparous salamander |
title_fullStr | The evolution of pueriparity maintains multiple paternity in a polymorphic viviparous salamander |
title_full_unstemmed | The evolution of pueriparity maintains multiple paternity in a polymorphic viviparous salamander |
title_short | The evolution of pueriparity maintains multiple paternity in a polymorphic viviparous salamander |
title_sort | evolution of pueriparity maintains multiple paternity in a polymorphic viviparous salamander |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7479106/ https://www.ncbi.nlm.nih.gov/pubmed/32901062 http://dx.doi.org/10.1038/s41598-020-71609-3 |
work_keys_str_mv | AT alarconrioslucia theevolutionofpueriparitymaintainsmultiplepaternityinapolymorphicviviparoussalamander AT niciezaalfredog theevolutionofpueriparitymaintainsmultiplepaternityinapolymorphicviviparoussalamander AT lourencoandre theevolutionofpueriparitymaintainsmultiplepaternityinapolymorphicviviparoussalamander AT veloantonguillermo theevolutionofpueriparitymaintainsmultiplepaternityinapolymorphicviviparoussalamander AT alarconrioslucia evolutionofpueriparitymaintainsmultiplepaternityinapolymorphicviviparoussalamander AT niciezaalfredog evolutionofpueriparitymaintainsmultiplepaternityinapolymorphicviviparoussalamander AT lourencoandre evolutionofpueriparitymaintainsmultiplepaternityinapolymorphicviviparoussalamander AT veloantonguillermo evolutionofpueriparitymaintainsmultiplepaternityinapolymorphicviviparoussalamander |