FN Archimer Export Format
PT J
TI Metapopulation patterns of additive and nonadditive genetic variance in the sea bass (   Dicentrarchus labrax   )
BT 
AF GUINAND, Bruno
   VANDEPUTTE, Marc
   DUPONT-NIVET, Mathilde
   VERGNET, Alain
   HAFFRAY, Pierrick
   CHAVANNE, Herve
   CHATAIN, Beatrice
AS 1:1,2;2:3,4;3:3;4:4;5:5;6:6;7:4;
FF 1:;2:;3:;4:PDG-RBE-MARBEC-LSEA;5:;6:;7:PDG-RBE-MARBEC-L3AS;
C1 Univ Montpellier, Dept Biol Ecol, Montpellier, France.
   UMR CNRS IRD EPHE Inst Sci Evolut Montpellier, Montpellier, France.
   INRA UMR1313 GABI, Jouy En Josas, France.
   IFREMER, UMR 9190, Marine Biodivers Exploitat & Conservat, Palavas Les Flots, France.
   SYSAAF, Campus Beaulieu, Rennes, France.
   Ist Sperimentale Lazzaro Spallanzani, Rivolta Dadda, Italy.
C2 UNIV MONTPELLIER, FRANCE
   CNRS, FRANCE
   INRA, FRANCE
   IFREMER, FRANCE
   SYSAAF, FRANCE
   IST SPERIMENTALE LAZZARO SPALLANZANI, ITALY
SI PALAVAS
SE PDG-RBE-MARBEC-LSEA
   PDG-RBE-MARBEC-L3AS
UM MARBEC
IN WOS Ifremer jusqu'en 2018
   DOAJ
   copubli-france
   copubli-p187
   copubli-europe
   copubli-univ-france
IF 2.34
TC 9
UR https://archimer.ifremer.fr/doc/00376/48759/49154.pdf
   https://archimer.ifremer.fr/doc/00376/48759/49155.pdf
LA English
DT Article
DE ;additive and nonadditive variance;Darwin's corollary;heterosis;mito-nuclear epistasis;pleiotropy
AB Describing and explaining the geographic within-species variation in phenotypes (“phenogeography”) in the sea over a species distribution range is central to our understanding of a variety of eco-evolutionary topics. However, phenogeographic studies that have a large potential to investigate adaptive variation are overcome by phylogeographic studies, still mainly focusing on neutral markers. How genotypic and phenotypic data could covary over large geographic scales remains poorly understood in marine species. We crossed 75 noninbred sires (five origins) and 26 dams (two origins; each side of a hybrid zone) in a factorial diallel cross in order to investigate geographic variation for early survival and sex ratio in the metapopulation of the European sea bass (Dicentrarchus labrax), a highly prized marine fish species. Full-sib families (N = 1,950) were produced and reared in a common environment. Parentage assignment of 7,200 individuals was performed with seven microsatellite markers. Generalized linear models showed significant additive effects for both traits and pleiotropy between traits. A significant nonadditive genetic effect was detected. Different expression of traits and distinct relative performances were found for reciprocal crosses involving populations located on each side of the main hybrid zone located at the Almeria-Oran front, illustrating asymmetric reproductive isolation. The poor fitness performance observed for the Western Mediterranean population of sea bass is discussed as it represents the main source of seed hatchery production, but also because it potentially illustrates nonadaptive introgression and maladaptation.
PY 2017
PD APR
SO Ecology And Evolution
SN 2045-7758
PU Wiley
VL 7
IS 8
UT 000399737500030
BP 2777
EP 2790
DI 10.1002/ece3.2832
ID 48759
ER

EF