FN Archimer Export Format
PT J
TI Within-Generation Polygenic Selection Shapes Fitness-Related Traits across Environments in Juvenile Sea Bream
BT 
AF Rey, Carine
   Darnaude, Audrey
   Ferraton, Franck
   Guinand, Bruno
   Bonhomme, François
   Bierne, Nicolas
   Gagnaire, Pierre-Alexandre
AS 1:1,2;2:3;3:3;4:1;5:1;6:1;7:1;
FF 1:;2:;3:;4:;5:;6:;7:;
C1 ISEM, Univ Montpellier, CNRS, EPHE, IRD, Montpellier, France
   Univ Lyon, ENS de Lyon, Univ Claude Bernard, CNRS UMR 5239, INSERM U1210, Laboratoire de Biologie et Modélisation de la Cellule, 15 parvis Descartes, F-69007 Lyon, France
   MARBEC, Univ Montpellier, CNRS, IRD, Ifremer, 34095 Montpellier, France
C2 UNIV MONTPELLIER, FRANCE
   UNIV LYON, FRANCE
   UNIV MONTPELLIER, FRANCE
UM MARBEC
IN WOS Cotutelle UMR
   DOAJ
   copubli-france
   copubli-univ-france
IF 1.151
TC 6
UR https://archimer.ifremer.fr/doc/00622/73370/72560.pdf
   https://archimer.ifremer.fr/doc/00622/73370/72561.pdf
LA English
DT Article
DE ;antagonistic pleiotropy;habitat association;fitness trade-off;juvenile growth;polygenic scores;RAD-sequencing;spatially varying selection
AB Understanding the genetic underpinnings of fitness trade-o s across spatially variable environments remains a major challenge in evolutionary biology. In Mediterranean gilthead sea bream, first-year juveniles use various marine and brackish lagoon nursery habitats characterized by a trade-o between food availability and environmental disturbance. Phenotypic di erences among juveniles foraging in di erent habitats rapidly appear after larval settlement, but the relative role of local selection and plasticity in phenotypic variation remains unclear. Here, we combine phenotypic and genetic data to address this question. We first report correlations of opposite signs between growth and condition depending on juvenile habitat type. Then, we use single nucleotide polymorphism (SNP) data obtained by Restriction Associated DNA (RAD) sequencing to search for allele frequency changes caused by a single generation of spatially varying selection between habitats. We found evidence for moderate selection operating at multiple loci showing subtle allele frequency shifts between groups of marine and brackish juveniles. We identified subsets of candidate outlier SNPs that, in interaction with habitat type, additively explain up to 3.8% of the variance in juvenile growth and 8.7% in juvenile condition; these SNPs also explained significant fraction of growth rate in an independent larval sample. Our results indicate that selective mortality across environments during early-life stages involves complex trade-o s between alternative growth strategies 
PY 2020
PD APR
SO Genes
SN 2073-4425
PU MDPI AG
VL 11
IS 4
UT 000537224600037
DI 10.3390/genes11040398
ID 73370
ER

EF