Genetic effects on life-history traits in the Glanville fritillary butterfly

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Duplouy , A , Wong , S C , Corander , J , Lehtonen , R & Hanski , I 2017 , ' Genetic effects on life-history traits in the Glanville fritillary butterfly ' , PeerJ , vol. 5 , 3371 . https://doi.org/10.7717/peerj.3371

Title: Genetic effects on life-history traits in the Glanville fritillary butterfly
Author: Duplouy, Anne; Wong, Swee C.; Corander, Jukka; Lehtonen, Rainer; Hanski, Ilkka
Contributor: University of Helsinki, Biosciences
University of Helsinki, Biosciences
University of Helsinki, Department of Mathematics and Statistics
University of Helsinki, Research Programs Unit
University of Helsinki, Biosciences
Date: 2017-05-25
Language: eng
Number of pages: 23
Belongs to series: PeerJ
ISSN: 2167-8359
URI: http://hdl.handle.net/10138/195080
Abstract: Background: Adaptation to local habitat conditions may lead to the natural divergence of populations in life-history traits such as body size, time of reproduction, mate signaling or dispersal capacity. Given enough time and strong enough selection pressures, populations may experience local genetic differentiation. The genetic basis of many life-history traits, and their evolution according to different environmental conditions remain however poorly understood. Methods: We conducted an association study on the Glanville fritillary butterfly, using material from five populations along a latitudinal gradient within the Baltic Sea region, which show different degrees of habitat fragmentation. We investigated variation in 10 principal components, cofounding in total 21 life-history traits, according to two environmental types, and 33 genetic SNP markers from 15 candidate genes. Results: We found that nine SNPs from five genes showed strong trend for trait associations (p-values under 0.001 before correction). These associations, yet nonsignificant after multiple test corrections, with a total number of 1,086 tests, were consistent across the study populations. Additionally, these nine genes also showed an allele frequency difference between the populations from the northern fragmented versus the southern continuous landscape. Discussion: Our study provides further support for previously described trait associations within the Glanville fritillary butterfly species across different spatial scales. Although our results alone are inconclusive, they are concordant with previous studies that identified these associations to be related to climatic changes or habitat fragmentation within the angstrom land population.
Subject: Melitaea cinxia
Life-history
Association study
Fragmented population
Pgi
PHOSPHOGLUCOSE-ISOMERASE
LARVAL DEVELOPMENT
MELITAEA-CINXIA
EVOLUTIONARY DYNAMICS
COLIAS BUTTERFLIES
FLIGHT METABOLISM
NATURAL-SELECTION
DISPERSAL RATE
GENOTYPE
METAPOPULATION
1181 Ecology, evolutionary biology
112 Statistics and probability
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