Titre :
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Comparison of levels of genetic diversity detected with AFLP and microsatellite markers within and among mixed Q. petraea (Matt.) Liebl. and Q. robur L. stands
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Titre original:
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Comparaison des niveaux de diversité génétique détectés avec des marqueurs AFLP et microsatellites entre et parmi des peuplements mixtes de Quercus petraea et Quercus robur
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Auteurs :
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S. Mariette ;
CEMAGREF NOGENT SUR VERNISSON RGNO ;
J. Cottrell ;
FOREST RESEARCH ROSLIN GBR ;
U. Csaikl ;
P. Goikoechea ;
OSTERREICHISCHES FORSCHUNGSZENTRUM SEIBERDORF AUT ;
A. Konig ;
NEIKER VITORIA GASTEIZ ESP DPTO PRODUCCION Y PROTECCION VEGETAL ;
A. Lowe ;
BFH GROSSHANDORF DEU INSTITUT FUR FORSTGENETIK UND FORSTPFLANZENZUECHTUNG ;
B. Van Dam ;
CENTRE FOR ECOLOGY AND HYDROLOGY EDIMBURG GBR ;
ALTERRA GREEN WORLD RESEARCH WAGENINGEN NLD ;
T. Barreneche ;
INRA CESTAS EQUIPE DE GENETIQUE ET D'AMELIORATION DES ARBRES FORESTIERS ;
C. Bodenes ;
R. Streiff ;
K. Burg ;
K. Groppe ;
R. Munro ;
H. Tabbener ;
A. Kremer
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Type de document :
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article/chapitre/communication
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Année de publication :
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2002
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Format :
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p. 72-79
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Note générale :
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Diffusion tous publics
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Langues:
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= Anglais
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Mots-clés:
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QUERCUS PETRAEA
;
QUERCUS ROBUR
;
PEUPLEMENT MELANGE
;
VARIABILITE GENETIQUE
;
BIOLOGIE MOLECULAIRE
;
GENETIQUE DE POPULATION
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Résumé :
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The aim of this study was to compare genetic diversity within and among Quercus spp. populations based on two contrasting types of nuclear markers. Seven mixed stands of Quercus petraea and Quercus robur were analysed using six highly polymorphic and codominantly inherited microsatellite markers as well as 165 dominant AFLP markers. Genetic differentiation and genetic diversity within each population were assessed. The intra- and inter-locus variances were calculated, and the results were used to compare the genetic diversity between populations. Both classes of markers revealed similar results: the genetic diversity within population and the genetic differentiation among populations is greater in Q. petraea than in Q. robur. The genetic differentiation is generally higher when AFLP markers were used in comparison to microsatelli- tes. For AFLPs, the inter-locus variance is always much higher than the intra-locus variance, and explains why it was not possible to distinguish populations using this marker system. Finally, no significant positive correlation was found between the level of within-population diversity assessed with the two markers.
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Source :
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Silvae genetica, vol. 51, n°2-3
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