Fitness Costs of Thermal Reaction Norms for Wing Melanisation in the Large White Butterfly (Pieris brassicae)

被引：12
作者：
Chaput-Bardy, Audrey [1 ,2 ]
Ducatez, Simon [1 ,3 ]
Legrand, Delphine [1 ,4 ]
Baguette, Michel [1 ,4 ]
机构：
[1] Museum Natl Hist Nat, Inst Systemat Evolut Biodiversite, UMR 7205, F-75231 Paris, France
[2] INRA, Equipe Ecotoxicol & Qualite Milieux Aquat, UMR Ecol & Sante Ecosyst 985, INRA Agrocampus, F-35042 Rennes, France
[3] McGill Univ, Dept Biol, Montreal, PQ H3A 1B1, Canada
[4] CNRS, Stn Ecol Expt CNRS Moulis, USR 2936, Moulis, France
来源：
PLOS ONE | 2014年 / 9卷 / 02期
关键词：
ADAPTIVE PHENOTYPIC PLASTICITY; LIFE-HISTORY TRAITS; COLIAS BUTTERFLIES; EVOLUTION; LEPIDOPTERA; TEMPERATURE; BEHAVIOR; LIMITS; MELANIZATION; HERITABILITY;
D O I：
10.1371/journal.pone.0090026
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
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 degrees C), moderate (22 degrees C), and hot (26 degrees 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.
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页数：9
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