Fitness costs of thermal reaction norms for wing melanisation in the large white butterfly (Pieris brassicae).

The large white butterfly, Pieris brassicae, shows a seasonal polyphenism of wing melanisation, spring individuals being darker than summer individuals. This phenotypic plasticity is supposed to be an adaptive response for thermoregulation in natural populations. However, the variation in individual...

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Autores principales:	Audrey Chaput-Bardy, Simon Ducatez, Delphine Legrand, Michel Baguette
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2014
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/4d63500c5d714febb721b414baa04779
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spelling	oai:doaj.org-article:4d63500c5d714febb721b414baa047792021-11-18T08:30:40ZFitness costs of thermal reaction norms for wing melanisation in the large white butterfly (Pieris brassicae).1932-620310.1371/journal.pone.0090026https://doaj.org/article/4d63500c5d714febb721b414baa047792014-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24587196/?tool=EBIhttps://doaj.org/toc/1932-6203The large white butterfly, Pieris brassicae, shows a seasonal polyphenism of wing melanisation, spring individuals being darker than summer individuals. This phenotypic plasticity is supposed to be an adaptive response for thermoregulation in natural populations. However, the variation in individuals' response, the cause of this variation (genetic, non genetic but inheritable or environmental) and its relationship with fitness remain poorly known. We tested the relationships between thermal reaction norm of wing melanisation and adult lifespan as well as female fecundity. Butterflies were reared in cold (18°C), moderate (22°C), and hot (26°C) temperatures over three generations to investigate variation in adult pigmentation and the effects of maternal thermal environment on offspring reaction norms. We found a low heritability in wing melanisation (h(2) =0.18). Rearing families had contrasted thermal reaction norms. Adult lifespan of males and females from highly plastic families was shorter in individuals exposed to hot developmental temperature. Also, females from plastic families exhibited lower fecundity. We did not find any effect of maternal or grand-maternal developmental temperature on fitness. This study provides new evidence on the influence of phenotypic plasticity on life history-traits' evolution, a crucial issue in the context of global change.Audrey Chaput-BardySimon DucatezDelphine LegrandMichel BaguettePublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 9, Iss 2, p e90026 (2014)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Audrey Chaput-Bardy Simon Ducatez Delphine Legrand Michel Baguette Fitness costs of thermal reaction norms for wing melanisation in the large white butterfly (Pieris brassicae).
description	The large white butterfly, Pieris brassicae, shows a seasonal polyphenism of wing melanisation, spring individuals being darker than summer individuals. This phenotypic plasticity is supposed to be an adaptive response for thermoregulation in natural populations. However, the variation in individuals' response, the cause of this variation (genetic, non genetic but inheritable or environmental) and its relationship with fitness remain poorly known. We tested the relationships between thermal reaction norm of wing melanisation and adult lifespan as well as female fecundity. Butterflies were reared in cold (18°C), moderate (22°C), and hot (26°C) temperatures over three generations to investigate variation in adult pigmentation and the effects of maternal thermal environment on offspring reaction norms. We found a low heritability in wing melanisation (h(2) =0.18). Rearing families had contrasted thermal reaction norms. Adult lifespan of males and females from highly plastic families was shorter in individuals exposed to hot developmental temperature. Also, females from plastic families exhibited lower fecundity. We did not find any effect of maternal or grand-maternal developmental temperature on fitness. This study provides new evidence on the influence of phenotypic plasticity on life history-traits' evolution, a crucial issue in the context of global change.
format	article
author	Audrey Chaput-Bardy Simon Ducatez Delphine Legrand Michel Baguette
author_facet	Audrey Chaput-Bardy Simon Ducatez Delphine Legrand Michel Baguette
author_sort	Audrey Chaput-Bardy
title	Fitness costs of thermal reaction norms for wing melanisation in the large white butterfly (Pieris brassicae).
title_short	Fitness costs of thermal reaction norms for wing melanisation in the large white butterfly (Pieris brassicae).
title_full	Fitness costs of thermal reaction norms for wing melanisation in the large white butterfly (Pieris brassicae).
title_fullStr	Fitness costs of thermal reaction norms for wing melanisation in the large white butterfly (Pieris brassicae).
title_full_unstemmed	Fitness costs of thermal reaction norms for wing melanisation in the large white butterfly (Pieris brassicae).
title_sort	fitness costs of thermal reaction norms for wing melanisation in the large white butterfly (pieris brassicae).
publisher	Public Library of Science (PLoS)
publishDate	2014
url	https://doaj.org/article/4d63500c5d714febb721b414baa04779
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Fitness costs of thermal reaction norms for wing melanisation in the large white butterfly (Pieris brassicae).

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