Genetic diversity, population structure and phenotypic variation in European Salix viminalis L. (Salicaceae)

Abstract

To investigate the potential of association genetics for willow breeding, Salix viminalis germplasm was assembled from UK and Swedish collections (comprising accessions from several European countries) and new samples collected from nature. A subset of the germplasm was planted at two sites (UK and Sweden), genotyped using 38 SSR markers and assessed for phenological and biomass traits. Population structure, genetic differentiation (F-ST) and quantitative trait differentiation (Q(ST)) were investigated. The extent and patterns of trait adaptation were assessed by comparing F-ST and Q(ST) parameters. Of the 505 genotyped diploid accessions, 27 % were not unique. Genetic diversity was high: 471 alleles was amplified; the mean number of alleles per locus was 13.46, mean observed heterozygosity was 0.55 and mean expected heterozygosity was 0.62. Bayesian clustering identified four subpopulations which generally corresponded to Western Russia, Western Europe, Eastern Europe and Sweden. All pairwise F-ST values were highly significant (p

Keywords

Salix; Population structure; Adaptation; Breeding; SSRs

Published in

Tree Genetics and Genomes
2014, volume: 10, number: 6, pages: 1595-1610
Publisher: SPRINGER HEIDELBERG

SLU Authors

• Berlin Kolm, Sofia

  • Department of Plant Biology, Swedish University of Agricultural Sciences
    

• Fogelqvist, Johan

  • Department of Plant Biology, Swedish University of Agricultural Sciences
    

• Gyllenstrand, Niclas

  • Department of Plant Biology, Swedish University of Agricultural Sciences
    

• Hallingbäck, Henrik

  • Department of Plant Biology, Swedish University of Agricultural Sciences
    

• Åhman, Inger

  • Department of Plant Breeding, Swedish University of Agricultural Sciences
    

• Nordh, Nils-Erik

  • Department of Crop Production Ecology, Swedish University of Agricultural Sciences
    

• Weih, Martin

  • Department of Crop Production Ecology, Swedish University of Agricultural Sciences
    

• Rönnberg Wästljung, Ann-Christin

  • Department of Plant Biology, Swedish University of Agricultural Sciences
    

Associated SLU-program

Forest

Global goals (SDG)

SDG2 Zero hunger

UKÄ Subject classification

Forest Science
Genetics and Genomics

Publication identifier

• DOI: https://doi.org/10.1007/s11295-014-0782-5

Permanent link to this page (URI)

https://res.slu.se/id/publ/64253