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 .

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 organization: Biosciences
Centre of Excellence in Metapopulation Research
Ecology and Evolutionary Biology
Department of Mathematics and Statistics
Jukka Corander / Principal Investigator
Biostatistics Helsinki
Research Programs Unit
Genome-Scale Biology (GSB) Research Program
Sampsa Hautaniemi / Principal Investigator
Date: 2017-05-25
Language: eng
Number of pages: 23
Belongs to series: PeerJ
ISSN: 2167-8359
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
Association study
Fragmented population
1181 Ecology, evolutionary biology
112 Statistics and probability
Peer reviewed: Yes
Rights: cc_by
Usage restriction: openAccess
Self-archived version: publishedVersion

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